HEADER    HYDROLASE                               17-OCT-96   2MAS               
TITLE     PURINE NUCLEOSIDE HYDROLASE WITH A TRANSITION STATE INHIBITOR          
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: INOSINE-URIDINE NUCLEOSIDE N-RIBOHYDROLASE;                 
COMPND   3 CHAIN: A, B, C, D;                                                    
COMPND   4 SYNONYM: PURINE NUCLEOSIDE HYDROLASE, INOSINE-URIDINE NUCLEOSIDASE,   
COMPND   5 IU-NH;                                                                
COMPND   6 EC: 3.2.2.1;                                                          
COMPND   7 ENGINEERED: YES;                                                      
COMPND   8 MUTATION: YES                                                         
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: CRITHIDIA FASCICULATA;                           
SOURCE   3 ORGANISM_TAXID: 5656;                                                 
SOURCE   4 GENE: IU-NH FROM C. FASCICULATA;                                      
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                  
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                         
SOURCE   7 EXPRESSION_SYSTEM_PLASMID: PET3D-IUNH;                                
SOURCE   8 EXPRESSION_SYSTEM_GENE: IU-NH FROM C. FASCICULATA                     
KEYWDS    PURINE NUCLEOSIDE HYDROLASE, INOSINE, URIDINE, IU-NH, HYDROLASE,       
KEYWDS   2 PURINE NUCLEOSIDASE                                                   
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    M.DEGANO,V.L.SCHRAMM,J.C.SACCHETTINI                                   
REVDAT   3   09-AUG-23 2MAS    1       REMARK LINK                               
REVDAT   2   24-FEB-09 2MAS    1       VERSN                                     
REVDAT   1   12-AUG-97 2MAS    0                                                 
JRNL        AUTH   M.DEGANO,S.C.ALMO,J.C.SACCHETTINI,V.L.SCHRAMM                 
JRNL        TITL   TRYPANOSOMAL NUCLEOSIDE HYDROLASE. A NOVEL MECHANISM FROM     
JRNL        TITL 2 THE STRUCTURE WITH A TRANSITION-STATE INHIBITOR.              
JRNL        REF    BIOCHEMISTRY                  V.  37  6277 1998               
JRNL        REFN                   ISSN 0006-2960                                
JRNL        PMID   9572842                                                       
JRNL        DOI    10.1021/BI973012E                                             
REMARK   1                                                                       
REMARK   1 REFERENCE 1                                                           
REMARK   1  AUTH   M.DEGANO,D.N.GOPAUL,G.SCAPIN,V.L.SCHRAMM,J.C.SACCHETTINI      
REMARK   1  TITL   THREE-DIMENSIONAL STRUCTURE OF THE INOSINE-URIDINE            
REMARK   1  TITL 2 NUCLEOSIDE N-RIBOHYDROLASE FROM CRITHIDIA FASCICULATA         
REMARK   1  REF    BIOCHEMISTRY                  V.  35  5971 1996               
REMARK   1  REFN                   ISSN 0006-2960                                
REMARK   2                                                                       
REMARK   2 RESOLUTION.    2.30 ANGSTROMS.                                        
REMARK   3                                                                       
REMARK   3 REFINEMENT.                                                           
REMARK   3   PROGRAM     : X-PLOR 3.1                                            
REMARK   3   AUTHORS     : BRUNGER                                               
REMARK   3                                                                       
REMARK   3  DATA USED IN REFINEMENT.                                             
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30                            
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : NULL                            
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                           
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 10000000.000                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                          
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 80.8                            
REMARK   3   NUMBER OF REFLECTIONS             : 73166                           
REMARK   3                                                                       
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                      
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                       
REMARK   3   FREE R VALUE TEST SET SELECTION  : SHELLS                           
REMARK   3   R VALUE            (WORKING SET) : 0.205                            
REMARK   3   FREE R VALUE                     : 0.234                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 7.000                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 6118                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                             
REMARK   3                                                                       
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                   
REMARK   3   TOTAL NUMBER OF BINS USED           : 8                             
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.30                          
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.40                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 75.00                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 5906                          
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3230                        
REMARK   3   BIN FREE R VALUE                    : 0.3620                        
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 6.70                          
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 644                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                          
REMARK   3                                                                       
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                     
REMARK   3   PROTEIN ATOMS            : 9548                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                        
REMARK   3   HETEROGEN ATOMS          : 68                                       
REMARK   3   SOLVENT ATOMS            : 158                                      
REMARK   3                                                                       
REMARK   3  B VALUES.                                                            
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                            
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 29.10                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                        
REMARK   3    B11 (A**2) : NULL                                                  
REMARK   3    B22 (A**2) : NULL                                                  
REMARK   3    B33 (A**2) : NULL                                                  
REMARK   3    B12 (A**2) : NULL                                                  
REMARK   3    B13 (A**2) : NULL                                                  
REMARK   3    B23 (A**2) : NULL                                                  
REMARK   3                                                                       
REMARK   3  ESTIMATED COORDINATE ERROR.                                          
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                             
REMARK   3   ESD FROM SIGMAA              (A) : NULL                             
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                             
REMARK   3                                                                       
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                          
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.35                             
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                             
REMARK   3                                                                       
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                    
REMARK   3   BOND LENGTHS                 (A) : 0.011                            
REMARK   3   BOND ANGLES            (DEGREES) : 1.800                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                             
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.600                            
REMARK   3                                                                       
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                       
REMARK   3                                                                       
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                 
REMARK   3   MAIN-CHAIN BOND              (A**2) : 2.460 ; 1.500                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.610 ; 2.000                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.460 ; 2.000                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 2.610 ; 2.500                 
REMARK   3                                                                       
REMARK   3  NCS MODEL : NULL                                                     
REMARK   3                                                                       
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT           
REMARK   3   GROUP  1  POSITIONAL            (A) : 0.04  ; 500.                  
REMARK   3   GROUP  1  B-FACTOR           (A**2) : 1.5   ; 3.0                   
REMARK   3                                                                       
REMARK   3  PARAMETER FILE  1  : PARHCSDX.PRO                                    
REMARK   3  PARAMETER FILE  2  : PARAM19.SOL                                     
REMARK   3  PARAMETER FILE  3  : NULL                                            
REMARK   3  TOPOLOGY FILE  1   : TOPHCSDX.PRO                                    
REMARK   3  TOPOLOGY FILE  2   : TOPH19.SOL                                      
REMARK   3  TOPOLOGY FILE  3   : NULL                                            
REMARK   3                                                                       
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                       
REMARK   4                                                                       
REMARK   4 2MAS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                          
REMARK 100                                                                       
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                 
REMARK 100 THE DEPOSITION ID IS D_1000178330.                                    
REMARK 200                                                                       
REMARK 200 EXPERIMENTAL DETAILS                                                  
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                   
REMARK 200  DATE OF DATA COLLECTION        : 16-OCT-95                           
REMARK 200  TEMPERATURE           (KELVIN) : 293                                 
REMARK 200  PH                             : 7.5                                 
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                   
REMARK 200                                                                       
REMARK 200  SYNCHROTRON              (Y/N) : N                                   
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                      
REMARK 200  BEAMLINE                       : NULL                                
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU                              
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                   
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                              
REMARK 200  MONOCHROMATOR                  : GRAPHITE(002)                       
REMARK 200  OPTICS                         : NULL                                
REMARK 200                                                                       
REMARK 200  DETECTOR TYPE                  : AREA DETECTOR                       
REMARK 200  DETECTOR MANUFACTURER          : SIEMENS                             
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : SAINT                               
REMARK 200  DATA SCALING SOFTWARE          : SAINT                               
REMARK 200                                                                       
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 73166                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                                
REMARK 200  RESOLUTION RANGE LOW       (A) : 2.300                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                               
REMARK 200                                                                       
REMARK 200 OVERALL.                                                              
REMARK 200  COMPLETENESS FOR RANGE     (%) : 80.8                                
REMARK 200  DATA REDUNDANCY                : 4.500                               
REMARK 200  R MERGE                    (I) : 0.08200                             
REMARK 200  R SYM                      (I) : NULL                                
REMARK 200   FOR THE DATA SET  : 9.3100                              
REMARK 200                                                                       
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.50                      
REMARK 200  COMPLETENESS FOR SHELL     (%) : 75.1                                
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                                
REMARK 200  R MERGE FOR SHELL          (I) : NULL                                
REMARK 200  R SYM FOR SHELL            (I) : NULL                                
REMARK 200   FOR SHELL         : 2.200                               
REMARK 200                                                                       
REMARK 200 DIFFRACTION PROTOCOL: NULL                                            
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT         
REMARK 200 SOFTWARE USED: X-PLOR 3.1                                             
REMARK 200 STARTING MODEL: UNLIGANDED IU-NH (PDB CODE 1MAS), WATERS AND IONS     
REMARK 200  REMOVED                                                              
REMARK 200                                                                       
REMARK 200 REMARK: NULL                                                          
REMARK 280                                                                       
REMARK 280 CRYSTAL                                                               
REMARK 280 SOLVENT CONTENT, VS   (%): 65.00                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.58                      
REMARK 280                                                                       
REMARK 280 CRYSTALLIZATION CONDITIONS: 1.8 M AMMONIUM SULFATE, 3%                
REMARK 280  ISOPROPANOL, PH 7.5                                                  
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                             
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2                           
REMARK 290                                                                       
REMARK 290      SYMOP   SYMMETRY                                                 
REMARK 290     NNNMMM   OPERATOR                                                 
REMARK 290       1555   X,Y,Z                                                    
REMARK 290       2555   -X,-Y,Z                                                  
REMARK 290       3555   -X,Y,-Z                                                  
REMARK 290       4555   X,-Y,-Z                                                  
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                        
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                      
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                      
REMARK 290       8555   X+1/2,-Y+1/2,-Z+1/2                                      
REMARK 290                                                                       
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                      
REMARK 290           MMM -> TRANSLATION VECTOR                                   
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                             
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM              
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                 
REMARK 290 RELATED MOLECULES.                                                    
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000             
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000             
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000             
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000             
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       60.31500             
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       79.88000             
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000      103.19000             
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       60.31500             
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       79.88000             
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000      103.19000             
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       60.31500             
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       79.88000             
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000      103.19000             
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       60.31500             
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       79.88000             
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000      103.19000             
REMARK 290                                                                       
REMARK 290 REMARK: NULL                                                          
REMARK 300                                                                       
REMARK 300 BIOMOLECULE: 1                                                        
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                 
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                   
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON                
REMARK 300 BURIED SURFACE AREA.                                                  
REMARK 350                                                                       
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN            
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                 
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS           
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                           
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                                
REMARK 350                                                                       
REMARK 350 BIOMOLECULE: 1                                                        
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                   
REMARK 350 TOTAL BURIED SURFACE AREA: 9140 ANGSTROM**2                           
REMARK 350 SURFACE AREA OF THE COMPLEX: 43250 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -88.0 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D                             
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000             
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000             
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000             
REMARK 465                                                                       
REMARK 465 MISSING RESIDUES                                                      
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                        
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN                
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                 
REMARK 465                                                                       
REMARK 465   M RES C SSSEQI                                                      
REMARK 465     GLN A   315                                                       
REMARK 465     GLN B   315                                                       
REMARK 465     GLN C   315                                                       
REMARK 465     GLN D   315                                                       
REMARK 500                                                                       
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                          
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                      
REMARK 500                                                                       
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                             
REMARK 500                                                                       
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE           
REMARK 500   C    ASN D   281     CD   PRO D   282              1.74             
REMARK 500   C    ASN A   281     CD   PRO A   282              1.74             
REMARK 500   C    ASN C   281     CD   PRO C   282              1.75             
REMARK 500   C    ASN B   281     CD   PRO B   282              1.75             
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
REMARK 500                                                                       
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                          
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                              
REMARK 500                                                                       
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC              
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15           
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A            
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375              
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE                
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.             
REMARK 500                                                                       
REMARK 500 DISTANCE CUTOFF:                                                      
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS               
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                   
REMARK 500                                                                       
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE           
REMARK 500   O    THR C    89     O    THR C    89     2655     2.11             
REMARK 500   N    ALA B    91     N    ALA B    91     2755     2.13             
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
REMARK 500                                                                       
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                          
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                        
REMARK 500                                                                       
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES               
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE                
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN                
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                  
REMARK 500                                                                       
REMARK 500 STANDARD TABLE:                                                       
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)               
REMARK 500                                                                       
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                         
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                      
REMARK 500                                                                       
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                      
REMARK 500    GLY A  12   N   -  CA  -  C   ANGL. DEV. = -15.3 DEGREES           
REMARK 500    VAL A  36   CB  -  CA  -  C   ANGL. DEV. = -11.5 DEGREES           
REMARK 500    VAL A  37   CB  -  CA  -  C   ANGL. DEV. = -12.1 DEGREES           
REMARK 500    PRO A 282   C   -  N   -  CA  ANGL. DEV. =  54.1 DEGREES           
REMARK 500    PRO A 282   C   -  N   -  CD  ANGL. DEV. = -52.6 DEGREES           
REMARK 500    PRO A 282   CA  -  N   -  CD  ANGL. DEV. =  -8.6 DEGREES           
REMARK 500    PRO A 284   C   -  N   -  CA  ANGL. DEV. =  11.1 DEGREES           
REMARK 500    GLY B  12   N   -  CA  -  C   ANGL. DEV. = -15.8 DEGREES           
REMARK 500    VAL B  36   CB  -  CA  -  C   ANGL. DEV. = -11.5 DEGREES           
REMARK 500    VAL B  37   CB  -  CA  -  C   ANGL. DEV. = -12.4 DEGREES           
REMARK 500    PRO B 282   C   -  N   -  CA  ANGL. DEV. =  53.5 DEGREES           
REMARK 500    PRO B 282   C   -  N   -  CD  ANGL. DEV. = -52.2 DEGREES           
REMARK 500    PRO B 282   CA  -  N   -  CD  ANGL. DEV. =  -9.0 DEGREES           
REMARK 500    PRO B 284   C   -  N   -  CA  ANGL. DEV. =  11.0 DEGREES           
REMARK 500    VAL C  36   CB  -  CA  -  C   ANGL. DEV. = -11.8 DEGREES           
REMARK 500    VAL C  37   CB  -  CA  -  C   ANGL. DEV. = -11.5 DEGREES           
REMARK 500    PRO C 282   C   -  N   -  CA  ANGL. DEV. =  53.2 DEGREES           
REMARK 500    PRO C 282   C   -  N   -  CD  ANGL. DEV. = -52.3 DEGREES           
REMARK 500    PRO C 282   CA  -  N   -  CD  ANGL. DEV. =  -8.7 DEGREES           
REMARK 500    PRO C 284   C   -  N   -  CA  ANGL. DEV. =  11.2 DEGREES           
REMARK 500    GLY D  12   N   -  CA  -  C   ANGL. DEV. = -16.1 DEGREES           
REMARK 500    VAL D  36   CB  -  CA  -  C   ANGL. DEV. = -12.1 DEGREES           
REMARK 500    VAL D  37   CB  -  CA  -  C   ANGL. DEV. = -12.2 DEGREES           
REMARK 500    PRO D 282   C   -  N   -  CA  ANGL. DEV. =  53.5 DEGREES           
REMARK 500    PRO D 282   C   -  N   -  CD  ANGL. DEV. = -52.2 DEGREES           
REMARK 500    PRO D 282   CA  -  N   -  CD  ANGL. DEV. =  -8.8 DEGREES           
REMARK 500    PRO D 284   C   -  N   -  CA  ANGL. DEV. =  10.7 DEGREES           
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
REMARK 500                                                                       
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                          
REMARK 500 SUBTOPIC: TORSION ANGLES                                              
REMARK 500                                                                       
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:             
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;                
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                              
REMARK 500                                                                       
REMARK 500 STANDARD TABLE:                                                       
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                     
REMARK 500                                                                       
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-            
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400             
REMARK 500                                                                       
REMARK 500  M RES CSSEQI        PSI       PHI                                    
REMARK 500    PRO A  11      103.03    -29.10                                    
REMARK 500    ASN A 160      -43.38   -136.97                                    
REMARK 500    ASP A 172       78.86   -161.30                                    
REMARK 500    SER A 231      -88.99    -90.77                                    
REMARK 500    ASN A 232      -81.49    -32.68                                    
REMARK 500    ARG A 233       74.59   -106.26                                    
REMARK 500    TYR A 234      123.68    -24.17                                    
REMARK 500    PRO A 282       65.53    153.88                                    
REMARK 500    PRO A 284      -60.09    -22.19                                    
REMARK 500    GLU A 285      113.33     67.59                                    
REMARK 500    HIS A 286       77.92     80.14                                    
REMARK 500    PRO B  11      104.39    -28.13                                    
REMARK 500    ASN B 160      -45.83   -134.18                                    
REMARK 500    ASP B 172       78.27   -163.30                                    
REMARK 500    ASP B 211       55.88     39.40                                    
REMARK 500    SER B 231      -90.38    -89.08                                    
REMARK 500    ASN B 232      -79.77    -31.34                                    
REMARK 500    ARG B 233       74.30   -108.73                                    
REMARK 500    TYR B 234      123.87    -23.89                                    
REMARK 500    MET B 235      149.73   -170.05                                    
REMARK 500    PRO B 282       66.94    155.53                                    
REMARK 500    PRO B 284      -58.71    -22.25                                    
REMARK 500    GLU B 285      114.05     67.00                                    
REMARK 500    HIS B 286       79.66     80.48                                    
REMARK 500    VAL B 293      -70.72   -112.45                                    
REMARK 500    PRO C  11      105.11    -29.29                                    
REMARK 500    THR C  89       30.17   -140.81                                    
REMARK 500    ASN C 160      -44.51   -136.43                                    
REMARK 500    ASP C 172       77.70   -162.22                                    
REMARK 500    SER C 231      -88.76    -90.14                                    
REMARK 500    ASN C 232      -81.52    -32.52                                    
REMARK 500    ARG C 233       74.93   -106.81                                    
REMARK 500    TYR C 234      124.12    -24.99                                    
REMARK 500    PRO C 282       66.91    156.85                                    
REMARK 500    PRO C 284      -59.79    -20.85                                    
REMARK 500    GLU C 285      115.16     67.56                                    
REMARK 500    HIS C 286       77.83     78.88                                    
REMARK 500    VAL C 293      -71.04   -112.09                                    
REMARK 500    PRO D  11      102.17    -29.44                                    
REMARK 500    ASN D 160      -44.90   -130.15                                    
REMARK 500    ASP D 172       80.22   -161.15                                    
REMARK 500    SER D 231      -88.97    -89.99                                    
REMARK 500    ASN D 232      -81.12    -31.78                                    
REMARK 500    ARG D 233       74.53   -107.73                                    
REMARK 500    TYR D 234      124.60    -24.03                                    
REMARK 500    PRO D 282       66.83    156.78                                    
REMARK 500    PRO D 284      -60.11    -21.58                                    
REMARK 500    GLU D 285      114.53     67.70                                    
REMARK 500    HIS D 286       78.03     79.37                                    
REMARK 500    VAL D 293      -70.04   -112.74                                    
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
REMARK 620                                                                       
REMARK 620 METAL COORDINATION                                                    
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;                
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                              
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              CA A 316  CA                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 ASP A  10   OD1                                                     
REMARK 620 2 ASP A  15   OD1  79.7                                               
REMARK 620 3 ASP A  15   OD2  76.5  51.5                                         
REMARK 620 4 ASN A  39   OD1  63.4  67.3 111.1                                   
REMARK 620 5 THR A 126   O    90.4 130.8  79.3 146.8                             
REMARK 620 6 ASP A 242   OD2 140.4  75.5  63.9 129.9  83.3                       
REMARK 620 7 PIR A 400   O2' 126.4  84.2 127.8  63.1 135.9  81.2                 
REMARK 620 8 PIR A 400   O3' 144.0 134.9 129.5 114.7  74.1  71.0  61.8           
REMARK 620 9 HOH A 436   O    75.1 134.1 148.4  67.2  87.3 143.0  81.0  72.0     
REMARK 620 N                    1     2     3     4     5     6     7     8      
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              CA B 316  CA                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 ASP B  10   OD1                                                     
REMARK 620 2 ASP B  15   OD1  77.8                                               
REMARK 620 3 ASP B  15   OD2  73.6  51.4                                         
REMARK 620 4 THR B 126   O    95.2  80.7 131.9                                   
REMARK 620 5 ASP B 242   OD2 139.7  63.2  74.4  88.4                             
REMARK 620 6 PIR B 400   O2' 119.5 122.7  79.9 140.3  77.5                       
REMARK 620 7 PIR B 400   O3' 149.3 130.9 130.2  81.6  70.9  58.7                 
REMARK 620 8 HOH B 428   O    78.8 154.1 130.3  90.5 141.4  79.0  70.8           
REMARK 620 N                    1     2     3     4     5     6     7            
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              CA C 316  CA                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 ASP C  10   OD1                                                     
REMARK 620 2 ASP C  15   OD1  76.2                                               
REMARK 620 3 ASP C  15   OD2  75.2  49.6                                         
REMARK 620 4 THR C 126   O    96.2 135.2  85.7                                   
REMARK 620 5 ASP C 242   OD2 141.4  74.0  66.9  88.1                             
REMARK 620 6 PIR C 400   O3' 148.1 130.0 134.1  77.2  70.2                       
REMARK 620 7 PIR C 400   O2' 122.1  79.9 122.8 135.6  75.8  58.4                 
REMARK 620 8 HOH C 451   O    78.1 128.2 152.6  91.6 140.3  71.0  77.0           
REMARK 620 N                    1     2     3     4     5     6     7            
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              CA D 316  CA                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 ASP D  10   OD1                                                     
REMARK 620 2 ASP D  15   OD1  76.7                                               
REMARK 620 3 ASP D  15   OD2  74.7  50.9                                         
REMARK 620 4 THR D 126   O    91.7 132.4  81.5                                   
REMARK 620 5 ASP D 242   OD2 140.5  76.8  65.9  85.0                             
REMARK 620 6 PIR D 400   O2' 123.2  82.8 127.0 137.7  81.5                       
REMARK 620 7 PIR D 400   O3' 145.9 134.1 133.2  76.8  71.2  60.8                 
REMARK 620 8 HOH D 441   O    69.5 124.0 143.5  92.5 149.8  80.3  78.9           
REMARK 620 N                    1     2     3     4     5     6     7            
REMARK 800                                                                       
REMARK 800 SITE                                                                  
REMARK 800 SITE_IDENTIFIER: S1                                                   
REMARK 800 EVIDENCE_CODE: UNKNOWN                                                
REMARK 800 SITE_DESCRIPTION: DESCRIPTION NOT PROVIDED                            
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: S2                                                   
REMARK 800 EVIDENCE_CODE: UNKNOWN                                                
REMARK 800 SITE_DESCRIPTION: DESCRIPTION NOT PROVIDED                            
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: S3                                                   
REMARK 800 EVIDENCE_CODE: UNKNOWN                                                
REMARK 800 SITE_DESCRIPTION: DESCRIPTION NOT PROVIDED                            
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: S4                                                   
REMARK 800 EVIDENCE_CODE: UNKNOWN                                                
REMARK 800 SITE_DESCRIPTION: DESCRIPTION NOT PROVIDED                            
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC1                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 316                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC2                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 316                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC3                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA C 316                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC4                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA D 316                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC5                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PIR A 400                  
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC6                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PIR B 400                  
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC7                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PIR C 400                  
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC8                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PIR D 400                  
DBREF  2MAS A    3   315  UNP    Q27546   IUNH_CRIFA       2    314              
DBREF  2MAS B    3   315  UNP    Q27546   IUNH_CRIFA       2    314              
DBREF  2MAS C    3   315  UNP    Q27546   IUNH_CRIFA       2    314              
DBREF  2MAS D    3   315  UNP    Q27546   IUNH_CRIFA       2    314              
SEQRES   1 A  314  ALA LYS LYS ILE ILE LEU ASP CYS ASP PRO GLY LEU ASP           
SEQRES   2 A  314  ASP ALA VAL ALA ILE LEU LEU ALA HIS GLY ASN PRO GLU           
SEQRES   3 A  314  ILE GLU LEU LEU ALA ILE THR THR VAL VAL GLY ASN GLN           
SEQRES   4 A  314  THR LEU ALA LYS VAL THR ARG ASN ALA GLN LEU VAL ALA           
SEQRES   5 A  314  ASP ILE ALA GLY ILE THR GLY VAL PRO ILE ALA ALA GLY           
SEQRES   6 A  314  CYS ASP LYS PRO LEU VAL ARG LYS ILE MET THR ALA GLY           
SEQRES   7 A  314  HIS ILE HIS GLY GLU SER GLY MET GLY THR VAL ALA TYR           
SEQRES   8 A  314  PRO ALA GLU PHE LYS ASN LYS VAL ASP GLU ARG HIS ALA           
SEQRES   9 A  314  VAL ASN LEU ILE ILE ASP LEU VAL MET SER HIS GLU PRO           
SEQRES  10 A  314  LYS THR ILE THR LEU VAL PRO THR GLY GLY LEU THR ASN           
SEQRES  11 A  314  ILE ALA MET ALA ALA ARG LEU GLU PRO ARG ILE VAL ASP           
SEQRES  12 A  314  ARG VAL LYS GLU VAL VAL LEU MET GLY GLY GLY TYR HIS           
SEQRES  13 A  314  GLU GLY ASN ALA THR SER VAL ALA GLU PHE ASN ILE ILE           
SEQRES  14 A  314  ILE ASP PRO GLU ALA ALA HIS ILE VAL PHE ASN GLU SER           
SEQRES  15 A  314  TRP GLN VAL THR MET VAL GLY LEU ASP LEU THR HIS GLN           
SEQRES  16 A  314  ALA LEU ALA THR PRO PRO ILE LEU GLN ARG VAL LYS GLU           
SEQRES  17 A  314  VAL ASP THR ASN PRO ALA ARG PHE MET LEU GLU ILE MET           
SEQRES  18 A  314  ASP TYR TYR THR LYS ILE TYR GLN SER ASN ARG TYR MET           
SEQRES  19 A  314  ALA ALA ALA ALA VAL HIS ASP PRO CYS ALA VAL ALA TYR           
SEQRES  20 A  314  VAL ILE ASP PRO SER VAL MET THR THR GLU ARG VAL PRO           
SEQRES  21 A  314  VAL ASP ILE GLU LEU THR GLY LYS LEU THR LEU GLY MET           
SEQRES  22 A  314  THR VAL ALA ASP PHE ARG ASN PRO ARG PRO GLU HIS CYS           
SEQRES  23 A  314  HIS THR GLN VAL ALA VAL LYS LEU ASP PHE GLU LYS PHE           
SEQRES  24 A  314  TRP GLY LEU VAL LEU ASP ALA LEU GLU ARG ILE GLY ASP           
SEQRES  25 A  314  PRO GLN                                                       
SEQRES   1 B  314  ALA LYS LYS ILE ILE LEU ASP CYS ASP PRO GLY LEU ASP           
SEQRES   2 B  314  ASP ALA VAL ALA ILE LEU LEU ALA HIS GLY ASN PRO GLU           
SEQRES   3 B  314  ILE GLU LEU LEU ALA ILE THR THR VAL VAL GLY ASN GLN           
SEQRES   4 B  314  THR LEU ALA LYS VAL THR ARG ASN ALA GLN LEU VAL ALA           
SEQRES   5 B  314  ASP ILE ALA GLY ILE THR GLY VAL PRO ILE ALA ALA GLY           
SEQRES   6 B  314  CYS ASP LYS PRO LEU VAL ARG LYS ILE MET THR ALA GLY           
SEQRES   7 B  314  HIS ILE HIS GLY GLU SER GLY MET GLY THR VAL ALA TYR           
SEQRES   8 B  314  PRO ALA GLU PHE LYS ASN LYS VAL ASP GLU ARG HIS ALA           
SEQRES   9 B  314  VAL ASN LEU ILE ILE ASP LEU VAL MET SER HIS GLU PRO           
SEQRES  10 B  314  LYS THR ILE THR LEU VAL PRO THR GLY GLY LEU THR ASN           
SEQRES  11 B  314  ILE ALA MET ALA ALA ARG LEU GLU PRO ARG ILE VAL ASP           
SEQRES  12 B  314  ARG VAL LYS GLU VAL VAL LEU MET GLY GLY GLY TYR HIS           
SEQRES  13 B  314  GLU GLY ASN ALA THR SER VAL ALA GLU PHE ASN ILE ILE           
SEQRES  14 B  314  ILE ASP PRO GLU ALA ALA HIS ILE VAL PHE ASN GLU SER           
SEQRES  15 B  314  TRP GLN VAL THR MET VAL GLY LEU ASP LEU THR HIS GLN           
SEQRES  16 B  314  ALA LEU ALA THR PRO PRO ILE LEU GLN ARG VAL LYS GLU           
SEQRES  17 B  314  VAL ASP THR ASN PRO ALA ARG PHE MET LEU GLU ILE MET           
SEQRES  18 B  314  ASP TYR TYR THR LYS ILE TYR GLN SER ASN ARG TYR MET           
SEQRES  19 B  314  ALA ALA ALA ALA VAL HIS ASP PRO CYS ALA VAL ALA TYR           
SEQRES  20 B  314  VAL ILE ASP PRO SER VAL MET THR THR GLU ARG VAL PRO           
SEQRES  21 B  314  VAL ASP ILE GLU LEU THR GLY LYS LEU THR LEU GLY MET           
SEQRES  22 B  314  THR VAL ALA ASP PHE ARG ASN PRO ARG PRO GLU HIS CYS           
SEQRES  23 B  314  HIS THR GLN VAL ALA VAL LYS LEU ASP PHE GLU LYS PHE           
SEQRES  24 B  314  TRP GLY LEU VAL LEU ASP ALA LEU GLU ARG ILE GLY ASP           
SEQRES  25 B  314  PRO GLN                                                       
SEQRES   1 C  314  ALA LYS LYS ILE ILE LEU ASP CYS ASP PRO GLY LEU ASP           
SEQRES   2 C  314  ASP ALA VAL ALA ILE LEU LEU ALA HIS GLY ASN PRO GLU           
SEQRES   3 C  314  ILE GLU LEU LEU ALA ILE THR THR VAL VAL GLY ASN GLN           
SEQRES   4 C  314  THR LEU ALA LYS VAL THR ARG ASN ALA GLN LEU VAL ALA           
SEQRES   5 C  314  ASP ILE ALA GLY ILE THR GLY VAL PRO ILE ALA ALA GLY           
SEQRES   6 C  314  CYS ASP LYS PRO LEU VAL ARG LYS ILE MET THR ALA GLY           
SEQRES   7 C  314  HIS ILE HIS GLY GLU SER GLY MET GLY THR VAL ALA TYR           
SEQRES   8 C  314  PRO ALA GLU PHE LYS ASN LYS VAL ASP GLU ARG HIS ALA           
SEQRES   9 C  314  VAL ASN LEU ILE ILE ASP LEU VAL MET SER HIS GLU PRO           
SEQRES  10 C  314  LYS THR ILE THR LEU VAL PRO THR GLY GLY LEU THR ASN           
SEQRES  11 C  314  ILE ALA MET ALA ALA ARG LEU GLU PRO ARG ILE VAL ASP           
SEQRES  12 C  314  ARG VAL LYS GLU VAL VAL LEU MET GLY GLY GLY TYR HIS           
SEQRES  13 C  314  GLU GLY ASN ALA THR SER VAL ALA GLU PHE ASN ILE ILE           
SEQRES  14 C  314  ILE ASP PRO GLU ALA ALA HIS ILE VAL PHE ASN GLU SER           
SEQRES  15 C  314  TRP GLN VAL THR MET VAL GLY LEU ASP LEU THR HIS GLN           
SEQRES  16 C  314  ALA LEU ALA THR PRO PRO ILE LEU GLN ARG VAL LYS GLU           
SEQRES  17 C  314  VAL ASP THR ASN PRO ALA ARG PHE MET LEU GLU ILE MET           
SEQRES  18 C  314  ASP TYR TYR THR LYS ILE TYR GLN SER ASN ARG TYR MET           
SEQRES  19 C  314  ALA ALA ALA ALA VAL HIS ASP PRO CYS ALA VAL ALA TYR           
SEQRES  20 C  314  VAL ILE ASP PRO SER VAL MET THR THR GLU ARG VAL PRO           
SEQRES  21 C  314  VAL ASP ILE GLU LEU THR GLY LYS LEU THR LEU GLY MET           
SEQRES  22 C  314  THR VAL ALA ASP PHE ARG ASN PRO ARG PRO GLU HIS CYS           
SEQRES  23 C  314  HIS THR GLN VAL ALA VAL LYS LEU ASP PHE GLU LYS PHE           
SEQRES  24 C  314  TRP GLY LEU VAL LEU ASP ALA LEU GLU ARG ILE GLY ASP           
SEQRES  25 C  314  PRO GLN                                                       
SEQRES   1 D  314  ALA LYS LYS ILE ILE LEU ASP CYS ASP PRO GLY LEU ASP           
SEQRES   2 D  314  ASP ALA VAL ALA ILE LEU LEU ALA HIS GLY ASN PRO GLU           
SEQRES   3 D  314  ILE GLU LEU LEU ALA ILE THR THR VAL VAL GLY ASN GLN           
SEQRES   4 D  314  THR LEU ALA LYS VAL THR ARG ASN ALA GLN LEU VAL ALA           
SEQRES   5 D  314  ASP ILE ALA GLY ILE THR GLY VAL PRO ILE ALA ALA GLY           
SEQRES   6 D  314  CYS ASP LYS PRO LEU VAL ARG LYS ILE MET THR ALA GLY           
SEQRES   7 D  314  HIS ILE HIS GLY GLU SER GLY MET GLY THR VAL ALA TYR           
SEQRES   8 D  314  PRO ALA GLU PHE LYS ASN LYS VAL ASP GLU ARG HIS ALA           
SEQRES   9 D  314  VAL ASN LEU ILE ILE ASP LEU VAL MET SER HIS GLU PRO           
SEQRES  10 D  314  LYS THR ILE THR LEU VAL PRO THR GLY GLY LEU THR ASN           
SEQRES  11 D  314  ILE ALA MET ALA ALA ARG LEU GLU PRO ARG ILE VAL ASP           
SEQRES  12 D  314  ARG VAL LYS GLU VAL VAL LEU MET GLY GLY GLY TYR HIS           
SEQRES  13 D  314  GLU GLY ASN ALA THR SER VAL ALA GLU PHE ASN ILE ILE           
SEQRES  14 D  314  ILE ASP PRO GLU ALA ALA HIS ILE VAL PHE ASN GLU SER           
SEQRES  15 D  314  TRP GLN VAL THR MET VAL GLY LEU ASP LEU THR HIS GLN           
SEQRES  16 D  314  ALA LEU ALA THR PRO PRO ILE LEU GLN ARG VAL LYS GLU           
SEQRES  17 D  314  VAL ASP THR ASN PRO ALA ARG PHE MET LEU GLU ILE MET           
SEQRES  18 D  314  ASP TYR TYR THR LYS ILE TYR GLN SER ASN ARG TYR MET           
SEQRES  19 D  314  ALA ALA ALA ALA VAL HIS ASP PRO CYS ALA VAL ALA TYR           
SEQRES  20 D  314  VAL ILE ASP PRO SER VAL MET THR THR GLU ARG VAL PRO           
SEQRES  21 D  314  VAL ASP ILE GLU LEU THR GLY LYS LEU THR LEU GLY MET           
SEQRES  22 D  314  THR VAL ALA ASP PHE ARG ASN PRO ARG PRO GLU HIS CYS           
SEQRES  23 D  314  HIS THR GLN VAL ALA VAL LYS LEU ASP PHE GLU LYS PHE           
SEQRES  24 D  314  TRP GLY LEU VAL LEU ASP ALA LEU GLU ARG ILE GLY ASP           
SEQRES  25 D  314  PRO GLN                                                       
HET     CA  A 316       1                                                        
HET    PIR  A 400      16                                                        
HET     CA  B 316       1                                                        
HET    PIR  B 400      16                                                        
HET     CA  C 316       1                                                        
HET    PIR  C 400      16                                                        
HET     CA  D 316       1                                                        
HET    PIR  D 400      16                                                        
HETNAM      CA CALCIUM ION                                                       
HETNAM     PIR 2-(4-AMINO-PHENYL)-5-HYDROXYMETHYL-PYRROLIDINE-3,4-DIOL           
FORMUL   5   CA    4(CA 2+)                                                      
FORMUL   6  PIR    4(C11 H16 N2 O3)                                              
FORMUL  13  HOH   *158(H2 O)                                                     
HELIX    1   1 LEU A   13  GLY A   24  1                                  12     
HELIX    2   2 LEU A   42  ILE A   55  1                                  14     
HELIX    3   3 GLY A   79  HIS A   82  1                                   4     
HELIX    4   4 ALA A  105  SER A  115  1                                  11     
HELIX    5   5 THR A  130  LEU A  138  1                                   9     
HELIX    6   6 PRO A  140  ARG A  145  5                                   6     
HELIX    7   7 PHE A  167  ASN A  181  1                                  15     
HELIX    8   8 LEU A  191  GLN A  196  1                                   6     
HELIX    9   9 PRO A  201  VAL A  210  1                                  10     
HELIX   10  10 ASN A  213  SER A  231  1                                  19     
HELIX   11  11 ASP A  242  ILE A  250  1                                   9     
HELIX   12  12 PRO A  252  VAL A  254  5                                   3     
HELIX   13  13 PHE A  297  ILE A  311  1                                  15     
HELIX   14  14 LEU B   13  GLY B   24  1                                  12     
HELIX   15  15 LEU B   42  ILE B   55  1                                  14     
HELIX   16  16 GLY B   79  HIS B   82  1                                   4     
HELIX   17  17 ALA B  105  SER B  115  1                                  11     
HELIX   18  18 THR B  130  LEU B  138  1                                   9     
HELIX   19  19 PRO B  140  ARG B  145  5                                   6     
HELIX   20  20 PHE B  167  ASN B  181  1                                  15     
HELIX   21  21 LEU B  191  GLN B  196  1                                   6     
HELIX   22  22 PRO B  201  VAL B  210  1                                  10     
HELIX   23  23 ASN B  213  SER B  231  1                                  19     
HELIX   24  24 ASP B  242  ILE B  250  1                                   9     
HELIX   25  25 PRO B  252  VAL B  254  5                                   3     
HELIX   26  26 PHE B  297  ILE B  311  1                                  15     
HELIX   27  27 LEU C   13  GLY C   24  1                                  12     
HELIX   28  28 LEU C   42  ILE C   55  1                                  14     
HELIX   29  29 GLY C   79  HIS C   82  1                                   4     
HELIX   30  30 ALA C  105  SER C  115  1                                  11     
HELIX   31  31 THR C  130  LEU C  138  1                                   9     
HELIX   32  32 PRO C  140  ARG C  145  5                                   6     
HELIX   33  33 PHE C  167  ASN C  181  1                                  15     
HELIX   34  34 LEU C  191  GLN C  196  1                                   6     
HELIX   35  35 PRO C  201  VAL C  210  1                                  10     
HELIX   36  36 ASN C  213  SER C  231  1                                  19     
HELIX   37  37 HIS C  241  ILE C  250  1                                  10     
HELIX   38  38 PRO C  252  VAL C  254  5                                   3     
HELIX   39  39 PHE C  297  ILE C  311  1                                  15     
HELIX   40  40 LEU D   13  GLY D   24  1                                  12     
HELIX   41  41 LEU D   42  ILE D   55  1                                  14     
HELIX   42  42 GLY D   79  HIS D   82  1                                   4     
HELIX   43  43 ALA D  105  SER D  115  1                                  11     
HELIX   44  44 THR D  130  LEU D  138  1                                   9     
HELIX   45  45 PRO D  140  ARG D  145  5                                   6     
HELIX   46  46 PHE D  167  ASN D  181  1                                  15     
HELIX   47  47 LEU D  191  GLN D  196  1                                   6     
HELIX   48  48 PRO D  201  VAL D  210  1                                  10     
HELIX   49  49 ASN D  213  SER D  231  1                                  19     
HELIX   50  50 ASP D  242  ILE D  250  1                                   9     
HELIX   51  51 PRO D  252  VAL D  254  5                                   3     
HELIX   52  52 PHE D  297  ILE D  311  1                                  15     
SHEET    1   A 4 ILE A 121  PRO A 125  0                                         
SHEET    2   A 4 LYS A   3  CYS A   9  1  N  LYS A   4   O  THR A 122            
SHEET    3   A 4 ILE A  28  THR A  35  1  N  GLU A  29   O  LYS A   3            
SHEET    4   A 4 PRO A  62  ALA A  65  1  N  PRO A  62   O  ILE A  33            
SHEET    1   B 4 VAL A 149  MET A 152  0                                         
SHEET    2   B 4 VAL A 186  VAL A 189  1  N  THR A 187   O  VAL A 149            
SHEET    3   B 4 THR A 289  ALA A 292  1  N  GLN A 290   O  VAL A 186            
SHEET    4   B 4 THR A 257  ARG A 259 -1  N  GLU A 258   O  VAL A 291            
SHEET    1   C 2 PRO A 261  ILE A 264  0                                         
SHEET    2   C 2 THR A 275  ASP A 278 -1  N  ASP A 278   O  PRO A 261            
SHEET    1   D 7 PRO B  62  ALA B  65  0                                         
SHEET    2   D 7 ILE B  28  THR B  35  1  N  ILE B  33   O  PRO B  62            
SHEET    3   D 7 LYS B   3  CYS B   9  1  N  LYS B   3   O  GLU B  29            
SHEET    4   D 7 ILE B 121  PRO B 125  1  N  THR B 122   O  LYS B   4            
SHEET    5   D 7 VAL B 146  MET B 152  1  N  LYS B 147   O  ILE B 121            
SHEET    6   D 7 VAL B 186  VAL B 189  1  N  THR B 187   O  VAL B 149            
SHEET    7   D 7 THR B 289  VAL B 291  1  N  GLN B 290   O  VAL B 186            
SHEET    1   E 2 PRO B 261  ILE B 264  0                                         
SHEET    2   E 2 THR B 275  ASP B 278 -1  N  ASP B 278   O  PRO B 261            
SHEET    1   F 4 ILE C 121  PRO C 125  0                                         
SHEET    2   F 4 LYS C   3  CYS C   9  1  N  LYS C   4   O  THR C 122            
SHEET    3   F 4 ILE C  28  THR C  35  1  N  GLU C  29   O  LYS C   3            
SHEET    4   F 4 PRO C  62  ALA C  65  1  N  PRO C  62   O  ILE C  33            
SHEET    1   G 4 VAL C 149  MET C 152  0                                         
SHEET    2   G 4 VAL C 186  VAL C 189  1  N  THR C 187   O  VAL C 149            
SHEET    3   G 4 THR C 289  ALA C 292  1  N  GLN C 290   O  VAL C 186            
SHEET    4   G 4 THR C 257  ARG C 259 -1  N  GLU C 258   O  VAL C 291            
SHEET    1   H 2 PRO C 261  ILE C 264  0                                         
SHEET    2   H 2 THR C 275  ASP C 278 -1  N  ASP C 278   O  PRO C 261            
SHEET    1   I 4 ILE D 121  PRO D 125  0                                         
SHEET    2   I 4 LYS D   3  CYS D   9  1  N  LYS D   4   O  THR D 122            
SHEET    3   I 4 ILE D  28  THR D  35  1  N  GLU D  29   O  LYS D   3            
SHEET    4   I 4 PRO D  62  ALA D  65  1  N  PRO D  62   O  ILE D  33            
SHEET    1   J 4 VAL D 149  MET D 152  0                                         
SHEET    2   J 4 VAL D 186  VAL D 189  1  N  THR D 187   O  VAL D 149            
SHEET    3   J 4 THR D 289  ALA D 292  1  N  GLN D 290   O  VAL D 186            
SHEET    4   J 4 THR D 257  ARG D 259 -1  N  GLU D 258   O  VAL D 291            
SHEET    1   K 2 PRO D 261  ILE D 264  0                                         
SHEET    2   K 2 THR D 275  ASP D 278 -1  N  ASP D 278   O  PRO D 261            
LINK         OD1 ASP A  10                CA    CA A 316     1555   1555  2.50   
LINK         OD1 ASP A  15                CA    CA A 316     1555   1555  2.47   
LINK         OD2 ASP A  15                CA    CA A 316     1555   1555  2.58   
LINK         OD1 ASN A  39                CA    CA A 316     1555   1555  3.35   
LINK         O   THR A 126                CA    CA A 316     1555   1555  2.33   
LINK         OD2 ASP A 242                CA    CA A 316     1555   1555  2.57   
LINK        CA    CA A 316                 O2' PIR A 400     1555   1555  2.49   
LINK        CA    CA A 316                 O3' PIR A 400     1555   1555  2.54   
LINK        CA    CA A 316                 O   HOH A 436     1555   1555  2.40   
LINK         OD1 ASP B  10                CA    CA B 316     1555   1555  2.53   
LINK         OD1 ASP B  15                CA    CA B 316     1555   1555  2.61   
LINK         OD2 ASP B  15                CA    CA B 316     1555   1555  2.56   
LINK         O   THR B 126                CA    CA B 316     1555   1555  2.16   
LINK         OD2 ASP B 242                CA    CA B 316     1555   1555  2.52   
LINK        CA    CA B 316                 O2' PIR B 400     1555   1555  2.69   
LINK        CA    CA B 316                 O3' PIR B 400     1555   1555  2.48   
LINK        CA    CA B 316                 O   HOH B 428     1555   1555  2.39   
LINK         OD1 ASP C  10                CA    CA C 316     1555   1555  2.48   
LINK         OD1 ASP C  15                CA    CA C 316     1555   1555  2.57   
LINK         OD2 ASP C  15                CA    CA C 316     1555   1555  2.67   
LINK         O   THR C 126                CA    CA C 316     1555   1555  2.19   
LINK         OD2 ASP C 242                CA    CA C 316     1555   1555  2.63   
LINK        CA    CA C 316                 O3' PIR C 400     1555   1555  2.52   
LINK        CA    CA C 316                 O2' PIR C 400     1555   1555  2.68   
LINK        CA    CA C 316                 O   HOH C 451     1555   1555  2.40   
LINK         OD1 ASP D  10                CA    CA D 316     1555   1555  2.54   
LINK         OD1 ASP D  15                CA    CA D 316     1555   1555  2.49   
LINK         OD2 ASP D  15                CA    CA D 316     1555   1555  2.66   
LINK         O   THR D 126                CA    CA D 316     1555   1555  2.25   
LINK         OD2 ASP D 242                CA    CA D 316     1555   1555  2.54   
LINK        CA    CA D 316                 O2' PIR D 400     1555   1555  2.53   
LINK        CA    CA D 316                 O3' PIR D 400     1555   1555  2.47   
LINK        CA    CA D 316                 O   HOH D 441     1555   1555  2.47   
SITE     1  S1  5 ASP A  10  ASP A  15  ASP A 242  HIS A 241                     
SITE     2  S1  5 HIS A  82                                                      
SITE     1  S2  5 ASP B  10  ASP B  15  ASP B 242  HIS B 241                     
SITE     2  S2  5 HIS B  82                                                      
SITE     1  S3  5 ASP C  10  ASP C  15  ASP C 242  HIS C 241                     
SITE     2  S3  5 HIS C  82                                                      
SITE     1  S4  5 ASP D  10  ASP D  15  ASP D 242  HIS D 241                     
SITE     2  S4  5 HIS D  82                                                      
SITE     1 AC1  7 ASP A  10  ASP A  15  ASN A  39  THR A 126                     
SITE     2 AC1  7 ASP A 242  PIR A 400  HOH A 436                                
SITE     1 AC2  7 ASP B  10  ASP B  15  ASN B  39  THR B 126                     
SITE     2 AC2  7 ASP B 242  PIR B 400  HOH B 428                                
SITE     1 AC3  7 ASP C  10  ASP C  15  ASN C  39  THR C 126                     
SITE     2 AC3  7 ASP C 242  PIR C 400  HOH C 451                                
SITE     1 AC4  7 ASP D  10  ASP D  15  ASN D  39  THR D 126                     
SITE     2 AC4  7 ASP D 242  PIR D 400  HOH D 441                                
SITE     1 AC5 14 ASP A  14  ASP A  15  ASN A  39  ILE A  81                     
SITE     2 AC5 14 HIS A  82  THR A 126  MET A 152  ASN A 160                     
SITE     3 AC5 14 GLU A 166  ASN A 168  ARG A 233  ASP A 242                     
SITE     4 AC5 14  CA A 316  HOH A 436                                           
SITE     1 AC6 14 ASP B  14  ASP B  15  ASN B  39  ILE B  81                     
SITE     2 AC6 14 HIS B  82  THR B 126  MET B 152  ASN B 160                     
SITE     3 AC6 14 GLU B 166  ASN B 168  ARG B 233  ASP B 242                     
SITE     4 AC6 14  CA B 316  HOH B 428                                           
SITE     1 AC7 13 ASP C  14  ASP C  15  ASN C  39  ILE C  81                     
SITE     2 AC7 13 HIS C  82  THR C 126  MET C 152  ASN C 160                     
SITE     3 AC7 13 GLU C 166  ASN C 168  ASP C 242   CA C 316                     
SITE     4 AC7 13 HOH C 451                                                      
SITE     1 AC8 12 ASP D  14  ASP D  15  ASN D  39  ILE D  81                     
SITE     2 AC8 12 THR D 126  MET D 152  ASN D 160  GLU D 166                     
SITE     3 AC8 12 ASN D 168  ARG D 233  ASP D 242   CA D 316                     
CRYST1  120.630  159.760  206.380  90.00  90.00  90.00 I 2 2 2      32           
ORIGX1      1.000000  0.000000  0.000000        0.00000                          
ORIGX2      0.000000  1.000000  0.000000        0.00000                          
ORIGX3      0.000000  0.000000  1.000000        0.00000                          
SCALE1      0.008290  0.000000  0.000000        0.00000                          
SCALE2      0.000000  0.006259  0.000000        0.00000                          
SCALE3      0.000000  0.000000  0.004845        0.00000                          
MTRIX1   1  0.956030 -0.256810  0.141600        0.64351    1                     
MTRIX2   1 -0.256950 -0.966260 -0.017610       65.85996    1                     
MTRIX3   1  0.141350 -0.019550 -0.989770      115.14281    1                     
MTRIX1   2 -0.979260  0.023530 -0.201210      196.52390    1                     
MTRIX2   2  0.020470 -0.976650 -0.213860       52.78437    1                     
MTRIX3   2 -0.201550 -0.213550  0.955920       26.09237    1                     
MTRIX1   3 -0.966560  0.253840  0.036390      174.86868    1                     
MTRIX2   3  0.255020  0.936640  0.240150      -37.66309    1                     
MTRIX3   3  0.026870  0.241400 -0.970050      118.98824    1                     
END