HEADER    ASPARTYL PROTEASE                       21-OCT-94   1HTR               
TITLE     CRYSTAL AND MOLECULAR STRUCTURES OF HUMAN PROGASTRICSIN AT 1.62        
TITLE    2 ANGSTROMS RESOLUTION                                                  
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: PROGASTRICSIN (PRO SEGMENT);                                
COMPND   3 CHAIN: P;                                                             
COMPND   4 EC: 3.4.23.3;                                                         
COMPND   5 ENGINEERED: YES;                                                      
COMPND   6 MOL_ID: 2;                                                            
COMPND   7 MOLECULE: GASTRICSIN;                                                 
COMPND   8 CHAIN: B;                                                             
COMPND   9 EC: 3.4.23.3;                                                         
COMPND  10 ENGINEERED: YES                                                       
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                    
SOURCE   3 ORGANISM_COMMON: HUMAN;                                               
SOURCE   4 ORGANISM_TAXID: 9606;                                                 
SOURCE   5 ORGAN: STOMACH;                                                       
SOURCE   6 TISSUE: GASTRIC MUCOSA CELL: CHIEF CELLS;                             
SOURCE   7 MOL_ID: 2;                                                            
SOURCE   8 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                    
SOURCE   9 ORGANISM_COMMON: HUMAN;                                               
SOURCE  10 ORGANISM_TAXID: 9606;                                                 
SOURCE  11 ORGAN: STOMACH;                                                       
SOURCE  12 TISSUE: GASTRIC MUCOSA CELL: CHIEF CELLS                              
KEYWDS    ASPARTYL PROTEASE                                                      
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    S.A.MOORE,A.R.SIELECKI,M.N.G.JAMES                                     
REVDAT   3   13-JUL-11 1HTR    1       VERSN                                     
REVDAT   2   24-FEB-09 1HTR    1       VERSN                                     
REVDAT   1   26-JAN-95 1HTR    0                                                 
JRNL        AUTH   S.A.MOORE,A.R.SIELECKI,M.M.CHERNAIA,N.I.TARASOVA,M.N.JAMES    
JRNL        TITL   CRYSTAL AND MOLECULAR STRUCTURES OF HUMAN PROGASTRICSIN AT    
JRNL        TITL 2 1.62 A RESOLUTION.                                            
JRNL        REF    J.MOL.BIOL.                   V. 247   466 1995               
JRNL        REFN                   ISSN 0022-2836                                
JRNL        PMID   7714902                                                       
JRNL        DOI    10.1006/JMBI.1994.0154                                        
REMARK   1                                                                       
REMARK   1 REFERENCE 1                                                           
REMARK   1  AUTH   P.K.IVANOV,M.CHERNAIA,A.E.GUSTCHINA,I.V.PECHIK,S.V.NIKONOV,   
REMARK   1  AUTH 2 N.I.TARASOVA                                                  
REMARK   1  TITL   ISOLATION, CRYSTALLIZATION AND PRELIMINARY X-RAY DIFFRACTION  
REMARK   1  TITL 2 DATA OF HUMAN PROGASTRICSIN                                   
REMARK   1  REF    BIOCHIM.BIOPHYS.ACTA          V.1040   308 1990               
REMARK   1  REFN                   ISSN 0006-3002                                
REMARK   2                                                                       
REMARK   2 RESOLUTION.    1.62 ANGSTROMS.                                        
REMARK   3                                                                       
REMARK   3 REFINEMENT.                                                           
REMARK   3   PROGRAM     : PROLSQ, TNT                                           
REMARK   3   AUTHORS     : KONNERT,HENDRICKSON,TRONRUD,TEN EYCK,                 
REMARK   3               : MATTHEWS                                              
REMARK   3                                                                       
REMARK   3  DATA USED IN REFINEMENT.                                             
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.62                            
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 96.0                            
REMARK   3   NUMBER OF REFLECTIONS             : 50353                           
REMARK   3                                                                       
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                      
REMARK   3   CROSS-VALIDATION METHOD          : NULL                             
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                             
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.179                            
REMARK   3   R VALUE            (WORKING SET) : NULL                             
REMARK   3   FREE R VALUE                     : NULL                             
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                             
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                             
REMARK   3                                                                       
REMARK   3  FIT/AGREEMENT OF MODEL WITH ALL DATA.                                
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                    
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : NULL                    
REMARK   3   FREE R VALUE                  (NO CUTOFF) : NULL                    
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                    
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : NULL                    
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : NULL                    
REMARK   3                                                                       
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                     
REMARK   3   PROTEIN ATOMS            : 2863                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                        
REMARK   3   HETEROGEN ATOMS          : 0                                        
REMARK   3   SOLVENT ATOMS            : 250                                      
REMARK   3                                                                       
REMARK   3  B VALUES.                                                            
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                            
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 27.75                           
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  RMS DEVIATIONS FROM IDEAL VALUES.                                    
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA                
REMARK   3    BOND LENGTH                     (A) : 0.018 ; 0.022                
REMARK   3    ANGLE DISTANCE                  (A) : 0.047 ; 0.042                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : 0.045 ; 0.042                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                 
REMARK   3                                                                       
REMARK   3   PLANE RESTRAINT                  (A) : 0.021 ; 0.020                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : 0.180 ; 0.180                
REMARK   3                                                                       
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                      
REMARK   3    SINGLE TORSION                  (A) : 0.240 ; 0.360                
REMARK   3    MULTIPLE TORSION                (A) : 0.170 ; 0.360                
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                 
REMARK   3    H-BOND (X-H...Y)                (A) : 0.200 ; 0.360                
REMARK   3                                                                       
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                            
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                 
REMARK   3    PLANAR                    (DEGREES) : 2.400 ; 8.000                
REMARK   3    STAGGERED                 (DEGREES) : 16.500; 100.000              
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; NULL                 
REMARK   3                                                                       
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                 
REMARK   3   MAIN-CHAIN BOND               (A**2) : 2.100 ; 2.000                
REMARK   3   MAIN-CHAIN ANGLE              (A**2) : 3.600 ; 3.000                
REMARK   3   SIDE-CHAIN BOND               (A**2) : 2.900 ; 2.500                
REMARK   3   SIDE-CHAIN ANGLE              (A**2) : 4.600 ; 3.500                
REMARK   3                                                                       
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                       
REMARK   4                                                                       
REMARK   4 1HTR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                          
REMARK 100                                                                       
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                 
REMARK 200                                                                       
REMARK 200 EXPERIMENTAL DETAILS                                                  
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                   
REMARK 200  DATE OF DATA COLLECTION        : NULL                                
REMARK 200  TEMPERATURE           (KELVIN) : NULL                                
REMARK 200  PH                             : NULL                                
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                                
REMARK 200                                                                       
REMARK 200  SYNCHROTRON              (Y/N) : NULL                                
REMARK 200  RADIATION SOURCE               : NULL                                
REMARK 200  BEAMLINE                       : NULL                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                                
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                                
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                                
REMARK 200  MONOCHROMATOR                  : NULL                                
REMARK 200  OPTICS                         : NULL                                
REMARK 200                                                                       
REMARK 200  DETECTOR TYPE                  : NULL                                
REMARK 200  DETECTOR MANUFACTURER          : NULL                                
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                                
REMARK 200  DATA SCALING SOFTWARE          : NULL                                
REMARK 200                                                                       
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 50353                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                                
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                                
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                               
REMARK 200                                                                       
REMARK 200 OVERALL.                                                              
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.0                                
REMARK 200  DATA REDUNDANCY                : NULL                                
REMARK 200  R MERGE                    (I) : NULL                                
REMARK 200  R SYM                      (I) : NULL                                
REMARK 200   FOR THE DATA SET  : NULL                                
REMARK 200                                                                       
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                      
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                                
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         : NULL                                
REMARK 200                                                                       
REMARK 200 DIFFRACTION PROTOCOL: NULL                                            
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                          
REMARK 200 SOFTWARE USED: NULL                                                   
REMARK 200 STARTING MODEL: NULL                                                  
REMARK 200                                                                       
REMARK 200 REMARK: NULL                                                          
REMARK 280                                                                       
REMARK 280 CRYSTAL                                                               
REMARK 280 SOLVENT CONTENT, VS   (%): 48.82                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.40                      
REMARK 280                                                                       
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                      
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                             
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 42 21 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   -Y+1/2,X+1/2,Z+1/2                                       
REMARK 290       4555   Y+1/2,-X+1/2,Z+1/2                                       
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   Y,X,-Z                                                   
REMARK 290       8555   -Y,-X,-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  0.000000 -1.000000  0.000000       52.65500             
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       52.65500             
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       35.21000             
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       52.65500             
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       52.65500             
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       35.21000             
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       52.65500             
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       52.65500             
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       35.21000             
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       52.65500             
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       52.65500             
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       35.21000             
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000             
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000             
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000             
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000             
REMARK 290                                                                       
REMARK 290 REMARK: NULL                                                          
REMARK 300                                                                       
REMARK 300 BIOMOLECULE: 1, 2                                                     
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: PQS                                                    
REMARK 350 APPLY THE FOLLOWING TO CHAINS: P, 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 350   BIOMT1   2  0.000000  1.000000  0.000000        0.00000             
REMARK 350   BIOMT2   2  1.000000  0.000000  0.000000        0.00000             
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       70.42000             
REMARK 350                                                                       
REMARK 350 BIOMOLECULE: 2                                                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                     
REMARK 350 SOFTWARE USED: PISA                                                   
REMARK 350 TOTAL BURIED SURFACE AREA: 4640 ANGSTROM**2                           
REMARK 350 SURFACE AREA OF THE COMPLEX: 15180 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -25.0 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: P, 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 400                                                                       
REMARK 400 COMPOUND                                                              
REMARK 400 COMPND                                                                
REMARK 400  THE MOLECULE IS SYNTHESIZED IN THE STOMACH IN THIS                   
REMARK 400  INACTIVE ZYMOGEN FORM.  AFTER ACTIVATION THE PROSEGMENT              
REMARK 400  (RESIDUES P 1 - P 43) IS RELEASED AND THE ACTIVE                     
REMARK 400  MOLECULE HUMAN GASTRICSIN IS COMPOSED OF RESIDUES SER 1              
REMARK 400  - ALA 329.                                                           
REMARK 400                                                                       
REMARK 400 POSSIBLE MAIN CHAIN ALTERNATE CONFORMATION                            
REMARK 400 THE ELECTRON DENSITY ASSOCIATED WITH THE MAIN-CHAIN ATOMS             
REMARK 400 OF RESIDUES GLN B 92 - SER B 93 AND ALA B 124 - TYR B 125             
REMARK 400 CAN ACCOMODATE TWO ALTERNATE CONFORMATIONS FOR EACH OF                
REMARK 400 THOSE TWO PEPTIDES WHERE THE POSITION OF THE CORRESPONDING            
REMARK 400 CARBONYL OXYGEN ATOMS OF THE MAIN-CHAIN WOULD BE FLIPPED.             
REMARK 400 ONLY THE MOST PROBABLE CONFORMER OF EACH PEPTIDE IS                   
REMARK 400 INCLUDED IN THE CURRENT MODEL                                         
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    LEU P    43     N    SER B     1              1.34             
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    LYS P  11   CB  -  CA  -  C   ANGL. DEV. = -12.3 DEGREES           
REMARK 500    ARG P  14   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.5 DEGREES           
REMARK 500    GLU B  17   OE1 -  CD  -  OE2 ANGL. DEV. =   7.5 DEGREES           
REMARK 500    LEU B  28   CB  -  CG  -  CD1 ANGL. DEV. = -11.5 DEGREES           
REMARK 500    LEU B  38   CB  -  CG  -  CD2 ANGL. DEV. = -13.9 DEGREES           
REMARK 500    LEU B  73   CB  -  CG  -  CD1 ANGL. DEV. = -10.2 DEGREES           
REMARK 500    LEU B 146   CB  -  CG  -  CD1 ANGL. DEV. = -10.7 DEGREES           
REMARK 500    SER B 148   CB  -  CA  -  C   ANGL. DEV. = -11.4 DEGREES           
REMARK 500    LEU B 189   CB  -  CG  -  CD2 ANGL. DEV. =  13.0 DEGREES           
REMARK 500    LEU B 199   CB  -  CG  -  CD2 ANGL. DEV. = -11.6 DEGREES           
REMARK 500    LEU B 222   CB  -  CG  -  CD1 ANGL. DEV. = -10.2 DEGREES           
REMARK 500    LEU B 233   CB  -  CG  -  CD2 ANGL. DEV. = -18.3 DEGREES           
REMARK 500    LEU B 234   CB  -  CG  -  CD1 ANGL. DEV. = -10.3 DEGREES           
REMARK 500    LEU B 248   CB  -  CG  -  CD1 ANGL. DEV. = -10.6 DEGREES           
REMARK 500    SER B 279   CB  -  CA  -  C   ANGL. DEV. = -18.0 DEGREES           
REMARK 500    ARG B 310   NE  -  CZ  -  NH2 ANGL. DEV. =   3.6 DEGREES           
REMARK 500    ARG B 322   NE  -  CZ  -  NH2 ANGL. DEV. =   3.5 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    ALA B  13       -8.62   -144.21                                    
REMARK 500    SER B  77        6.56    -64.90                                    
REMARK 500    SER B  93       -3.90     91.17                                    
REMARK 500    SER B 161      -40.29   -146.18                                    
REMARK 500    CYS B 208       38.46    -88.87                                    
REMARK 500    ASN B 281      102.81     73.60                                    
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
REMARK 500                                                                       
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                          
REMARK 500 SUBTOPIC: CHIRAL CENTERS                                              
REMARK 500                                                                       
REMARK 500 UNEXPECTED CONFIGURATION OF THE FOLLOWING CHIRAL                      
REMARK 500 CENTER(S) USING IMPROPER CA--C--CB--N CHIRALITY                       
REMARK 500 FOR AMINO ACIDS AND C1'--O4'--N1(N9)--C2' FOR                         
REMARK 500 NUCLEIC ACIDS OR EQUIVALENT ANGLE                                     
REMARK 500 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,A1,6X,F5.1,6X,A1,10X,A1,3X,A16)        
REMARK 500                                                                       
REMARK 500  M RES CSSEQI    IMPROPER   EXPECTED   FOUND DETAILS                  
REMARK 500    SER B  79        24.0      L          L   OUTSIDE RANGE            
REMARK 500    THR B 134        23.0      L          L   OUTSIDE RANGE            
REMARK 500    SER B 162        23.0      L          L   OUTSIDE RANGE            
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
REMARK 525                                                                       
REMARK 525 SOLVENT                                                               
REMARK 525                                                                       
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                     
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                   
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                  
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                        
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                              
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                   
REMARK 525 NUMBER; I=INSERTION CODE):                                            
REMARK 525                                                                       
REMARK 525  M RES CSSEQI                                                         
REMARK 525    HOH B 528        DISTANCE =  5.28 ANGSTROMS                        
REMARK 525    HOH B 567        DISTANCE =  6.14 ANGSTROMS                        
REMARK 525    HOH B 590        DISTANCE =  5.52 ANGSTROMS                        
REMARK 800                                                                       
REMARK 800 SITE                                                                  
REMARK 800 SITE_IDENTIFIER: CAT                                                  
REMARK 800 EVIDENCE_CODE: AUTHOR                                                 
REMARK 800 SITE_DESCRIPTION: IN THIS INACTIVE ZYMOGEN STRUCTURE THE NZ ATOM      
REMARK 800  OF LYS P 37 SITS BETWEEN THE ACTIVE SITE CARBOXYLATES OF ASP B 32    
REMARK 800  AND ASP B 217, THEREBY PREVENTING CATALYSIS                          
DBREF  1HTR P    1    43  UNP    P20142   PEPC_HUMAN      17     59              
DBREF  1HTR B    1   329  UNP    P20142   PEPC_HUMAN      60    388              
SEQRES   1 P   43  ALA VAL VAL LYS VAL PRO LEU LYS LYS PHE LYS SER ILE           
SEQRES   2 P   43  ARG GLU THR MET LYS GLU LYS GLY LEU LEU GLY GLU PHE           
SEQRES   3 P   43  LEU ARG THR HIS LYS TYR ASP PRO ALA TRP LYS TYR ARG           
SEQRES   4 P   43  PHE GLY ASP LEU                                               
SEQRES   1 B  329  SER VAL THR TYR GLU PRO MET ALA TYR MET ASP ALA ALA           
SEQRES   2 B  329  TYR PHE GLY GLU ILE SER ILE GLY THR PRO PRO GLN ASN           
SEQRES   3 B  329  PHE LEU VAL LEU PHE ASP THR GLY SER SER ASN LEU TRP           
SEQRES   4 B  329  VAL PRO SER VAL TYR CYS GLN SER GLN ALA CYS THR SER           
SEQRES   5 B  329  HIS SER ARG PHE ASN PRO SER GLU SER SER THR TYR SER           
SEQRES   6 B  329  THR ASN GLY GLN THR PHE SER LEU GLN TYR GLY SER GLY           
SEQRES   7 B  329  SER LEU THR GLY PHE PHE GLY TYR ASP THR LEU THR VAL           
SEQRES   8 B  329  GLN SER ILE GLN VAL PRO ASN GLN GLU PHE GLY LEU SER           
SEQRES   9 B  329  GLU ASN GLU PRO GLY THR ASN PHE VAL TYR ALA GLN PHE           
SEQRES  10 B  329  ASP GLY ILE MET GLY LEU ALA TYR PRO ALA LEU SER VAL           
SEQRES  11 B  329  ASP GLU ALA THR THR ALA MET GLN GLY MET VAL GLN GLU           
SEQRES  12 B  329  GLY ALA LEU THR SER PRO VAL PHE SER VAL TYR LEU SER           
SEQRES  13 B  329  ASN GLN GLN GLY SER SER GLY GLY ALA VAL VAL PHE GLY           
SEQRES  14 B  329  GLY VAL ASP SER SER LEU TYR THR GLY GLN ILE TYR TRP           
SEQRES  15 B  329  ALA PRO VAL THR GLN GLU LEU TYR TRP GLN ILE GLY ILE           
SEQRES  16 B  329  GLU GLU PHE LEU ILE GLY GLY GLN ALA SER GLY TRP CYS           
SEQRES  17 B  329  SER GLU GLY CYS GLN ALA ILE VAL ASP THR GLY THR SER           
SEQRES  18 B  329  LEU LEU THR VAL PRO GLN GLN TYR MET SER ALA LEU LEU           
SEQRES  19 B  329  GLN ALA THR GLY ALA GLN GLU ASP GLU TYR GLY GLN PHE           
SEQRES  20 B  329  LEU VAL ASN CYS ASN SER ILE GLN ASN LEU PRO SER LEU           
SEQRES  21 B  329  THR PHE ILE ILE ASN GLY VAL GLU PHE PRO LEU PRO PRO           
SEQRES  22 B  329  SER SER TYR ILE LEU SER ASN ASN GLY TYR CYS THR VAL           
SEQRES  23 B  329  GLY VAL GLU PRO THR TYR LEU SER SER GLN ASN GLY GLN           
SEQRES  24 B  329  PRO LEU TRP ILE LEU GLY ASP VAL PHE LEU ARG SER TYR           
SEQRES  25 B  329  TYR SER VAL TYR ASP LEU GLY ASN ASN ARG VAL GLY PHE           
SEQRES  26 B  329  ALA THR ALA ALA                                               
FORMUL   3  HOH   *250(H2 O)                                                     
HELIX    1   4 GLU B    5  MET B   10  5                                   6     
HELIX    2   5 SER B   47  SER B   52  1                                   6     
HELIX    3   6 ASN B   57  SER B   61  5                                   5     
HELIX    4   7 GLY B  109  ALA B  115  5                                   7     
HELIX    5   8 THR B  135  GLU B  143  1                                   9     
HELIX    6   9 ASP B  172  SER B  174  5                                   3     
HELIX    7  10 TYR B  229  GLY B  238  1                                  10     
HELIX    8  11 ASN B  250  LEU B  257  5                                   8     
HELIX    9  12 PRO B  272  TYR B  276  1                                   5     
HELIX   10  13 GLY B  305  ARG B  310  1                                   6     
SHEET    1   A 3 GLN B 192  ILE B 195  0                                         
SHEET    2   A 3 CYS B 212  VAL B 216 -1  O  CYS B 212   N  ILE B 195            
SHEET    3   A 3 LEU B 301  LEU B 304  1  N  TRP B 302   O  GLN B 213            
SHEET    1   B 4 GLN B 203  ALA B 204  0                                         
SHEET    2   B 4 GLU B 197  ILE B 200 -1  O  ILE B 200   N  GLN B 203            
SHEET    3   B 4 LEU B 260  ILE B 264 -1  N  THR B 261   O  LEU B 199            
SHEET    4   B 4 VAL B 267  LEU B 271 -1  O  VAL B 267   N  ILE B 264            
SHEET    1   C 2 LEU B 223  PRO B 226  0                                         
SHEET    2   C 2 VAL B 288  THR B 291  1  O  GLU B 289   N  VAL B 225            
SHEET    1   D 4 GLN B 240  GLU B 241  0                                         
SHEET    2   D 4 PHE B 247  VAL B 249 -1  N  LEU B 248   O  GLN B 240            
SHEET    3   D 4 CYS B 284  VAL B 286 -1  O  CYS B 284   N  VAL B 249            
SHEET    4   D 4 ILE B 277  SER B 279 -1  N  LEU B 278   O  THR B 285            
SSBOND   1 CYS B   45    CYS B   50                          1555   1555  2.03   
SSBOND   2 CYS B  208    CYS B  212                          1555   1555  2.03   
SSBOND   3 CYS B  251    CYS B  284                          1555   1555  2.03   
CISPEP   1 THR B   22    PRO B   23          0        -0.68                      
SITE     1 CAT  3 LYS P  37  TYR P  32  ASP B 217                                
CRYST1  105.310  105.310   70.420  90.00  90.00  90.00 P 42 21 2     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      0.009496  0.000000  0.000000        0.00000                          
SCALE2      0.000000  0.009496  0.000000        0.00000                          
SCALE3      0.000000  0.000000  0.014201        0.00000                          
END