HEADER    HYDROLASE                               07-FEB-99   1EN7               
TITLE     ENDONUCLEASE VII (ENDOVII) FROM PHAGE T4                               
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: RECOMBINATION ENDONUCLEASE VII;                             
COMPND   3 CHAIN: A, B;                                                          
COMPND   4 SYNONYM: PROTEIN GP49;                                                
COMPND   5 EC: 3.1.22.4;                                                         
COMPND   6 ENGINEERED: YES;                                                      
COMPND   7 OTHER_DETAILS: ONE ZN BOUND TO CYS 23,26,58,61 OF EACH CHAIN CA       
COMPND   8 LIGANDED TO ASP40 AND ASN 62                                          
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: ENTEROBACTERIA PHAGE T4;                         
SOURCE   3 ORGANISM_TAXID: 10665;                                                
SOURCE   4 GENE: GP49;                                                           
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21;                             
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 511693;                                      
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21;                                       
SOURCE   8 EXPRESSION_SYSTEM_CELLULAR_LOCATION: CYTOPLASM;                       
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID                                
KEYWDS    ENDONUCLEASE, RESOLVASE, HOLLIDAY JUNCTION, DNASE, HYDROLASE           
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    H.RAAIJMAKERS,O.VIX,I.TORO,D.SUCK                                      
REVDAT   6   03-APR-24 1EN7    1       REMARK                                    
REVDAT   5   27-DEC-23 1EN7    1       REMARK LINK                               
REVDAT   4   24-FEB-09 1EN7    1       VERSN                                     
REVDAT   3   30-DEC-03 1EN7    1       COMPND REMARK AUTHOR                      
REVDAT   2   01-APR-03 1EN7    1       JRNL                                      
REVDAT   1   07-FEB-00 1EN7    0                                                 
JRNL        AUTH   H.RAAIJMAKERS,O.VIX,I.TORO,S.GOLZ,B.KEMPER,D.SUCK             
JRNL        TITL   X-RAY STRUCTURE OF T4 ENDONUCLEASE VII: A DNA JUNCTION        
JRNL        TITL 2 RESOLVASE WITH A NOVEL FOLD AND UNUSUAL DOMAIN-SWAPPED DIMER  
JRNL        TITL 3 ARCHITECTURE.                                                 
JRNL        REF    EMBO J.                       V.  18  1447 1999               
JRNL        REFN                   ISSN 0261-4189                                
JRNL        PMID   10075917                                                      
JRNL        DOI    10.1093/EMBOJ/18.6.1447                                       
REMARK   2                                                                       
REMARK   2 RESOLUTION.    2.40 ANGSTROMS.                                        
REMARK   3                                                                       
REMARK   3 REFINEMENT.                                                           
REMARK   3   PROGRAM     : REFMAC                                                
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,               
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                              
REMARK   3                                                                       
REMARK   3  DATA USED IN REFINEMENT.                                             
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.40                            
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 10.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.5                            
REMARK   3   NUMBER OF REFLECTIONS             : 15326                           
REMARK   3                                                                       
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                      
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                       
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                           
REMARK   3   R VALUE     (WORKING + TEST SET) : NULL                             
REMARK   3   R VALUE            (WORKING SET) : 0.240                            
REMARK   3   FREE R VALUE                     : 0.308                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 828                              
REMARK   3                                                                       
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                     
REMARK   3   PROTEIN ATOMS            : 2544                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                        
REMARK   3   HETEROGEN ATOMS          : 5                                        
REMARK   3   SOLVENT ATOMS            : 73                                       
REMARK   3                                                                       
REMARK   3  B VALUES.                                                            
REMARK   3   FROM WILSON PLOT           (A**2) : 36.81                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 46.84                           
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 OVERALL COORDINATE ERROR.                                  
REMARK   3   ESU BASED ON R VALUE                            (A): NULL           
REMARK   3   ESU BASED ON FREE R VALUE                       (A): NULL           
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): NULL           
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL           
REMARK   3                                                                       
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                    
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA                
REMARK   3    BOND LENGTH                     (A) : 0.027 ; 0.030                
REMARK   3    ANGLE DISTANCE                  (A) : 0.032 ; 0.030                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : 0.024 ; 0.030                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                 
REMARK   3                                                                       
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                 
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : 0.157 ; 0.150                
REMARK   3                                                                       
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                      
REMARK   3    SINGLE TORSION                  (A) : 0.177 ; 0.300                
REMARK   3    MULTIPLE TORSION                (A) : 0.268 ; 0.300                
REMARK   3    H-BOND (X...Y)                  (A) : 0.177 ; 0.300                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                 
REMARK   3                                                                       
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                            
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                 
REMARK   3    PLANAR                    (DEGREES) : 5.500 ; 7.000                
REMARK   3    STAGGERED                 (DEGREES) : 15.200; 7.000                
REMARK   3    TRANSVERSE                (DEGREES) : 32.500; 20.000               
REMARK   3                                                                       
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                 
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.955 ; 2.000                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.940 ; 3.000                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.092 ; 2.000                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 3.301 ; 3.000                 
REMARK   3                                                                       
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                       
REMARK   4                                                                       
REMARK   4 1EN7 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                          
REMARK 100                                                                       
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-FEB-99.                   
REMARK 100 THE DEPOSITION ID IS D_1000000456.                                    
REMARK 200                                                                       
REMARK 200 EXPERIMENTAL DETAILS                                                  
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                   
REMARK 200  DATE OF DATA COLLECTION        : 15-APR-98                           
REMARK 200  TEMPERATURE           (KELVIN) : 100                                 
REMARK 200  PH                             : 8.2                                 
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          : ENRAF-NONIUS                        
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                   
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                              
REMARK 200  MONOCHROMATOR                  : NI COATED MIRRORS                   
REMARK 200  OPTICS                         : NI COATED MIRRORS                   
REMARK 200                                                                       
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                         
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                         
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                 
REMARK 200  DATA SCALING SOFTWARE          : XDS, SCALA, CCP4 (SCALA)            
REMARK 200                                                                       
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 17578                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.330                               
REMARK 200  RESOLUTION RANGE LOW       (A) : 44.281                              
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                                
REMARK 200                                                                       
REMARK 200 OVERALL.                                                              
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.4                                
REMARK 200  DATA REDUNDANCY                : 3.800                               
REMARK 200  R MERGE                    (I) : NULL                                
REMARK 200  R SYM                      (I) : 0.06000                             
REMARK 200   FOR THE DATA SET  : 11.8000                             
REMARK 200                                                                       
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.33                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.46                      
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.3                                
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.70                                
REMARK 200  R MERGE FOR SHELL          (I) : NULL                                
REMARK 200  R SYM FOR SHELL            (I) : 0.25300                             
REMARK 200   FOR SHELL         : 3.000                               
REMARK 200                                                                       
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                               
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SIRAS                         
REMARK 200 SOFTWARE USED: SHARP                                                  
REMARK 200 STARTING MODEL: ENDOVII N62D MUTANT                                   
REMARK 200                                                                       
REMARK 200 REMARK: NULL                                                          
REMARK 280                                                                       
REMARK 280 CRYSTAL                                                               
REMARK 280 SOLVENT CONTENT, VS   (%): 57.01                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.80                      
REMARK 280                                                                       
REMARK 280 CRYSTALLIZATION CONDITIONS: HANGING DROP VAPOUR DIFFUSION 1 + 1 UL    
REMARK 280  OF PROTEIN SOLUTION: 16 MG/ML ENDOVII, 175 MM NACL, 20 MM MGCL2,     
REMARK 280  2 MM ZNCL2, 10 MM 2-MERCAPTO-ETHANOL, 10 % GLYCEROL, 10 MM MOPS      
REMARK 280  PH6.5; WELL: 16-18% PEG 5000 MME, 200 MM CACL2, 20 MM AMMONIUM       
REMARK 280  SULPHATE, 10 MM 2-MERCAPTO-ETHANOL, 100 MM TRIS PH 8.2, ~ 1 MM       
REMARK 280  SODIUM AZIDE, VAPOR DIFFUSION, HANGING DROP                          
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                             
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                           
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+1/2,Y+1/2,Z                                            
REMARK 290       4555   -X+1/2,Y+1/2,-Z                                          
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       72.49500             
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       19.72500             
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000             
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       72.49500             
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       19.72500             
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000             
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: DIMERIC                            
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                     
REMARK 350 SOFTWARE USED: PISA                                                   
REMARK 350 TOTAL BURIED SURFACE AREA: 6860 ANGSTROM**2                           
REMARK 350 SURFACE AREA OF THE COMPLEX: 17630 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -76.0 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                   
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 375                                                                       
REMARK 375 SPECIAL POSITION                                                      
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS             
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL           
REMARK 375 POSITIONS.                                                            
REMARK 375                                                                       
REMARK 375 ATOM RES CSSEQI                                                       
REMARK 375      HOH A 437  LIES ON A SPECIAL POSITION.                           
REMARK 500                                                                       
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                          
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                       
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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)                
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   RES CSSEQI ATM2   DEVIATION                      
REMARK 500    ARG A 131   CD    ARG A 131   NE     -0.116                        
REMARK 500    SER B 147   CB    SER B 147   OG     -0.092                        
REMARK 500    ARG B 153   CD    ARG B 153   NE     -0.119                        
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    MET A   1   CA  -  CB  -  CG  ANGL. DEV. =  14.3 DEGREES           
REMARK 500    GLU A  10   CA  -  CB  -  CG  ANGL. DEV. =  18.4 DEGREES           
REMARK 500    ASP A  33   CB  -  CG  -  OD2 ANGL. DEV. =  -9.2 DEGREES           
REMARK 500    GLU A  44   OE1 -  CD  -  OE2 ANGL. DEV. =   9.7 DEGREES           
REMARK 500    ARG A  54   NE  -  CZ  -  NH2 ANGL. DEV. =   3.4 DEGREES           
REMARK 500    CYS A  58   CA  -  CB  -  SG  ANGL. DEV. =   7.9 DEGREES           
REMARK 500    ARG A 131   CD  -  NE  -  CZ  ANGL. DEV. =  35.9 DEGREES           
REMARK 500    ARG A 131   NE  -  CZ  -  NH2 ANGL. DEV. =   5.2 DEGREES           
REMARK 500    LYS A 157   CA  -  CB  -  CG  ANGL. DEV. =  14.4 DEGREES           
REMARK 500    MET B   1   CA  -  CB  -  CG  ANGL. DEV. =  14.0 DEGREES           
REMARK 500    LYS B  14   CA  -  CB  -  CG  ANGL. DEV. =  34.3 DEGREES           
REMARK 500    LYS B  14   CB  -  CG  -  CD  ANGL. DEV. =  20.6 DEGREES           
REMARK 500    ARG B  28   CD  -  NE  -  CZ  ANGL. DEV. =  10.3 DEGREES           
REMARK 500    ARG B  28   NE  -  CZ  -  NH1 ANGL. DEV. =   3.9 DEGREES           
REMARK 500    ARG B  54   NE  -  CZ  -  NH1 ANGL. DEV. =  -4.3 DEGREES           
REMARK 500    ARG B  54   NE  -  CZ  -  NH2 ANGL. DEV. =   6.1 DEGREES           
REMARK 500    THR B 100   CA  -  CB  -  CG2 ANGL. DEV. =   8.6 DEGREES           
REMARK 500    LYS B 141   CA  -  CB  -  CG  ANGL. DEV. =  13.5 DEGREES           
REMARK 500    ARG B 153   CD  -  NE  -  CZ  ANGL. DEV. =  34.2 DEGREES           
REMARK 500    ARG B 153   NE  -  CZ  -  NH2 ANGL. DEV. =   3.3 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    ILE A  25      -66.71   -108.92                                    
REMARK 500    LEU A  30      178.39    -58.35                                    
REMARK 500    ASP A  33       87.69    -66.91                                    
REMARK 500    GLU A  44      148.62    -38.70                                    
REMARK 500    ILE B  25      -70.61    -82.44                                    
REMARK 500    ASN B 102     -178.95    -68.30                                    
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
REMARK 500                                                                       
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                          
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                        
REMARK 500                                                                       
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                        
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                  
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                      
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                             
REMARK 500 I=INSERTION CODE).                                                    
REMARK 500                                                                       
REMARK 500  M RES CSSEQI        ANGLE                                            
REMARK 500    MET A   1        -17.77                                            
REMARK 500    VAL A  53         11.65                                            
REMARK 500    ASN A  62        -10.89                                            
REMARK 500    ALA A  63        -11.65                                            
REMARK 500    ALA A  64        -11.48                                            
REMARK 500    SER A  75         12.13                                            
REMARK 500    LYS B   6        -10.13                                            
REMARK 500    GLN B  19         16.26                                            
REMARK 500    LYS B  22         10.80                                            
REMARK 500    GLN B  80         10.25                                            
REMARK 500    ASP B  83        -15.71                                            
REMARK 500    ASN B 102        -12.46                                            
REMARK 500    ASN B 107        -12.33                                            
REMARK 500    PHE B 108         10.24                                            
REMARK 500    SER B 113        -12.60                                            
REMARK 500    TYR B 135        -10.47                                            
REMARK 500    ARG B 153        -10.72                                            
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 B 405  CA                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 ASP A  17   O                                                       
REMARK 620 2 ASN A  20   OD1  84.9                                               
REMARK 620 3 GLY B  81   O    79.6  82.4                                         
REMARK 620 4 GLU B  86   OE1 162.2  83.8  85.3                                   
REMARK 620 5 GLU B  86   OE2 143.0  81.4 131.7  47.9                             
REMARK 620 6 HOH B 448   O    92.8 150.9  68.6  90.5 115.3                       
REMARK 620 N                    1     2     3     4     5                        
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              ZN A 401  ZN                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 CYS A  23   SG                                                      
REMARK 620 2 CYS A  26   SG  111.7                                               
REMARK 620 3 CYS A  58   SG  114.8 111.6                                         
REMARK 620 4 CYS A  61   SG  108.1 108.2 101.8                                   
REMARK 620 N                    1     2     3                                    
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              CA A 403  CA                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 ASP A  40   OD1                                                     
REMARK 620 2 ASN A  62   OD1  93.2                                               
REMARK 620 3 HOH A 447   O    98.0 135.7                                         
REMARK 620 4 HOH A 450   O    86.7 154.0  69.8                                   
REMARK 620 N                    1     2     3                                    
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              ZN B 402  ZN                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 CYS B  23   SG                                                      
REMARK 620 2 CYS B  26   SG  108.8                                               
REMARK 620 3 CYS B  58   SG  116.6 112.4                                         
REMARK 620 4 CYS B  61   SG  109.6 106.0 102.8                                   
REMARK 620 N                    1     2     3                                    
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              CA B 404  CA                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 GLU B  29   OE2                                                     
REMARK 620 2 ASP B  40   OD1 137.3                                               
REMARK 620 3 ASN B  62   OD1  80.1  83.5                                         
REMARK 620 4 HOH B 444   O   120.0  93.8  77.0                                   
REMARK 620 N                    1     2     3                                    
REMARK 800                                                                       
REMARK 800 SITE                                                                  
REMARK 800 SITE_IDENTIFIER: AC1                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 401                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC2                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 402                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC3                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 403                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC4                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 404                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC5                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 405                   
DBREF  1EN7 A    1   157  UNP    P13340   END7_BPT4        1    157              
DBREF  1EN7 B    1   157  UNP    P13340   END7_BPT4        1    157              
SEQRES   1 A  157  MET LEU LEU THR GLY LYS LEU TYR LYS GLU GLU LYS GLN           
SEQRES   2 A  157  LYS PHE TYR ASP ALA GLN ASN GLY LYS CYS LEU ILE CYS           
SEQRES   3 A  157  GLN ARG GLU LEU ASN PRO ASP VAL GLN ALA ASN HIS LEU           
SEQRES   4 A  157  ASP HIS ASP HIS GLU LEU ASN GLY PRO LYS ALA GLY LYS           
SEQRES   5 A  157  VAL ARG GLY LEU LEU CYS ASN LEU CYS ASN ALA ALA GLU           
SEQRES   6 A  157  GLY GLN MET LYS HIS LYS PHE ASN ARG SER GLY LEU LYS           
SEQRES   7 A  157  GLY GLN GLY VAL ASP TYR LEU GLU TRP LEU GLU ASN LEU           
SEQRES   8 A  157  LEU THR TYR LEU LYS SER ASP TYR THR GLN ASN ASN ILE           
SEQRES   9 A  157  HIS PRO ASN PHE VAL GLY ASP LYS SER LYS GLU PHE SER           
SEQRES  10 A  157  ARG LEU GLY LYS GLU GLU MET MET ALA GLU MET LEU GLN           
SEQRES  11 A  157  ARG GLY PHE GLU TYR ASN GLU SER ASP THR LYS THR GLN           
SEQRES  12 A  157  LEU ILE ALA SER PHE LYS LYS GLN LEU ARG LYS SER LEU           
SEQRES  13 A  157  LYS                                                           
SEQRES   1 B  157  MET LEU LEU THR GLY LYS LEU TYR LYS GLU GLU LYS GLN           
SEQRES   2 B  157  LYS PHE TYR ASP ALA GLN ASN GLY LYS CYS LEU ILE CYS           
SEQRES   3 B  157  GLN ARG GLU LEU ASN PRO ASP VAL GLN ALA ASN HIS LEU           
SEQRES   4 B  157  ASP HIS ASP HIS GLU LEU ASN GLY PRO LYS ALA GLY LYS           
SEQRES   5 B  157  VAL ARG GLY LEU LEU CYS ASN LEU CYS ASN ALA ALA GLU           
SEQRES   6 B  157  GLY GLN MET LYS HIS LYS PHE ASN ARG SER GLY LEU LYS           
SEQRES   7 B  157  GLY GLN GLY VAL ASP TYR LEU GLU TRP LEU GLU ASN LEU           
SEQRES   8 B  157  LEU THR TYR LEU LYS SER ASP TYR THR GLN ASN ASN ILE           
SEQRES   9 B  157  HIS PRO ASN PHE VAL GLY ASP LYS SER LYS GLU PHE SER           
SEQRES  10 B  157  ARG LEU GLY LYS GLU GLU MET MET ALA GLU MET LEU GLN           
SEQRES  11 B  157  ARG GLY PHE GLU TYR ASN GLU SER ASP THR LYS THR GLN           
SEQRES  12 B  157  LEU ILE ALA SER PHE LYS LYS GLN LEU ARG LYS SER LEU           
SEQRES  13 B  157  LYS                                                           
HET     ZN  A 401       1                                                        
HET     CA  A 403       1                                                        
HET     ZN  B 402       1                                                        
HET     CA  B 404       1                                                        
HET     CA  B 405       1                                                        
HETNAM      ZN ZINC ION                                                          
HETNAM      CA CALCIUM ION                                                       
FORMUL   3   ZN    2(ZN 2+)                                                      
FORMUL   4   CA    3(CA 2+)                                                      
FORMUL   8  HOH   *73(H2 O)                                                      
HELIX    1   1 GLY A    5  ALA A   18  1                                  14     
HELIX    2   2 VAL A   34  ALA A   36  5                                   3     
HELIX    3   3 ASN A   59  SER A   75  1                                  17     
HELIX    4   4 LYS A   78  GLN A   80  5                                   3     
HELIX    5   5 TYR A   84  LYS A   96  1                                  13     
HELIX    6   6 PRO A  106  ARG A  118  5                                  13     
HELIX    7   7 LYS A  121  LEU A  129  1                                   9     
HELIX    8   8 LYS A  141  SER A  155  1                                  15     
HELIX    9   9 GLY B    5  ALA B   18  1                                  14     
HELIX   10  10 VAL B   34  ALA B   36  5                                   3     
HELIX   11  11 ASN B   59  SER B   75  1                                  17     
HELIX   12  12 LEU B   77  GLN B   80  5                                   4     
HELIX   13  13 TYR B   84  LEU B   95  1                                  12     
HELIX   14  14 PRO B  106  ARG B  118  5                                  13     
HELIX   15  15 LYS B  121  GLN B  130  1                                  10     
HELIX   16  16 LYS B  141  LYS B  154  1                                  14     
SHEET    1   A 2 HIS A  38  HIS A  41  0                                         
SHEET    2   A 2 VAL A  53  LEU A  57 -1  N  LEU A  57   O  HIS A  38            
SHEET    1   B 2 HIS B  38  HIS B  41  0                                         
SHEET    2   B 2 VAL B  53  LEU B  57 -1  N  LEU B  57   O  HIS B  38            
LINK         O   ASP A  17                CA    CA B 405     2656   1555  2.47   
LINK         OD1 ASN A  20                CA    CA B 405     2656   1555  2.47   
LINK         SG  CYS A  23                ZN    ZN A 401     1555   1555  2.30   
LINK         SG  CYS A  26                ZN    ZN A 401     1555   1555  2.25   
LINK         OD1 ASP A  40                CA    CA A 403     1555   1555  2.33   
LINK         SG  CYS A  58                ZN    ZN A 401     1555   1555  2.39   
LINK         SG  CYS A  61                ZN    ZN A 401     1555   1555  2.46   
LINK         OD1 ASN A  62                CA    CA A 403     1555   1555  2.42   
LINK        CA    CA A 403                 O   HOH A 447     1555   1555  2.49   
LINK        CA    CA A 403                 O   HOH A 450     1555   1555  2.63   
LINK         SG  CYS B  23                ZN    ZN B 402     1555   1555  2.28   
LINK         SG  CYS B  26                ZN    ZN B 402     1555   1555  2.35   
LINK         OE2 GLU B  29                CA    CA B 404     4546   1555  3.14   
LINK         OD1 ASP B  40                CA    CA B 404     1555   1555  2.37   
LINK         SG  CYS B  58                ZN    ZN B 402     1555   1555  2.34   
LINK         SG  CYS B  61                ZN    ZN B 402     1555   1555  2.46   
LINK         OD1 ASN B  62                CA    CA B 404     1555   1555  2.31   
LINK         O   GLY B  81                CA    CA B 405     1555   1555  2.41   
LINK         OE1 GLU B  86                CA    CA B 405     1555   1555  2.69   
LINK         OE2 GLU B  86                CA    CA B 405     1555   1555  2.61   
LINK        CA    CA B 404                 O   HOH B 444     1555   1555  2.48   
LINK        CA    CA B 405                 O   HOH B 448     1555   1555  2.60   
SITE     1 AC1  4 CYS A  23  CYS A  26  CYS A  58  CYS A  61                     
SITE     1 AC2  4 CYS B  23  CYS B  26  CYS B  58  CYS B  61                     
SITE     1 AC3  5 HIS A  38  ASP A  40  ASN A  62  HOH A 447                     
SITE     2 AC3  5 HOH A 450                                                      
SITE     1 AC4  4 GLU B  29  ASP B  40  ASN B  62  HOH B 444                     
SITE     1 AC5  5 ASP A  17  ASN A  20  GLY B  81  GLU B  86                     
SITE     2 AC5  5 HOH B 448                                                      
CRYST1  144.990   39.450   75.750  90.00 106.20  90.00 C 1 2 1       8           
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      0.006897  0.000000  0.002004        0.00000                          
SCALE2      0.000000  0.025348  0.000000        0.00000                          
SCALE3      0.000000  0.000000  0.013747        0.00000                          
END