HEADER    HYDROLASE/HYDROLASE INHIBITOR           14-AUG-00   1GGD              
TITLE     CRYSTAL STRUCTURE OF GAMMA CHYMOTRYPSIN WITH N-ACETYL-LEUCIL-         
TITLE    2 PHENYLALANINE ALDEHYDE BOUND AT THE ACTIVE SITE                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: GAMMA CHYMOTRYPSIN;                                        
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 3.4.21.1;                                                        
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: GAMMA CHYMOTRYPSIN;                                        
COMPND   7 CHAIN: B;                                                            
COMPND   8 EC: 3.4.21.1;                                                        
COMPND   9 MOL_ID: 3;                                                           
COMPND  10 MOLECULE: GAMMA CHYMOTRYPSIN;                                        
COMPND  11 CHAIN: C;                                                            
COMPND  12 EC: 3.4.21.1                                                         
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BOS TAURUS;                                     
SOURCE   3 ORGANISM_COMMON: CATTLE;                                             
SOURCE   4 ORGANISM_TAXID: 9913;                                                
SOURCE   5 ORGAN: PANCREAS;                                                     
SOURCE   6 MOL_ID: 2;                                                           
SOURCE   7 ORGANISM_SCIENTIFIC: BOS TAURUS;                                     
SOURCE   8 ORGANISM_COMMON: CATTLE;                                             
SOURCE   9 ORGANISM_TAXID: 9913;                                                
SOURCE  10 ORGAN: PANCREAS;                                                     
SOURCE  11 MOL_ID: 3;                                                           
SOURCE  12 ORGANISM_SCIENTIFIC: BOS TAURUS;                                     
SOURCE  13 ORGANISM_COMMON: CATTLE;                                             
SOURCE  14 ORGANISM_TAXID: 9913;                                                
SOURCE  15 ORGAN: PANCREAS                                                      
KEYWDS    CHYMOTRYPSIN, HYDROLASE-HYDROLASE INHIBITOR COMPLEX                   
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.NEIDHART,Y.WEI,C.CASSIDY,J.LIN,W.W.CLELAND,P.A.FREY                 
REVDAT   7   27-DEC-23 1GGD    1       REMARK LINK                              
REVDAT   6   27-JUN-18 1GGD    1       LINK                                     
REVDAT   5   04-OCT-17 1GGD    1       REMARK                                   
REVDAT   4   01-FEB-17 1GGD    1       TITLE  VERSN                             
REVDAT   3   24-FEB-09 1GGD    1       VERSN                                    
REVDAT   2   07-DEC-04 1GGD    1       AUTHOR JRNL   REMARK CONECT              
REVDAT   2 2                   1       MASTER                                   
REVDAT   1   20-SEP-00 1GGD    0                                                
JRNL        AUTH   D.NEIDHART,Y.WEI,C.CASSIDY,J.LIN,W.W.CLELAND,P.A.FREY        
JRNL        TITL   CORRELATION OF LOW-BARRIER HYDROGEN BONDING AND OXYANION     
JRNL        TITL 2 BINDING IN TRANSITION STATE ANALOGUE COMPLEXES OF            
JRNL        TITL 3 CHYMOTRYPSIN.                                                
JRNL        REF    BIOCHEMISTRY                  V.  40  2439 2000              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   11327865                                                     
JRNL        DOI    10.1021/BI002535A                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.5                                           
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 8.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 88.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 34112                          
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 SET) : 0.182                           
REMARK   3   FREE R VALUE                     : 0.212                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 3419                            
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           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
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            : 1738                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 27                                      
REMARK   3   SOLVENT ATOMS            : 215                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
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) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.005                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.300                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
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) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS:                                           
REMARK   3  INITIAL COORDINATES FOR THIS STRUCTURE WERE DERIVED FROM THE MODEL  
REMARK   3  OF                                                                  
REMARK   3  G. COHEN ET AL. (PDB ENTRY 2GCH). SECONDARY STRUCTURE ELEMENTS AND  
REMARK   3  SEQUENCE DATA ARE IDENTICAL TO THOSE OF ENTRY 2GCH.                 
REMARK   3                                                                      
REMARK   3  RESIDUES ALA 149 AND ASN 150 ARE DISORDERED.                        
REMARK   4                                                                      
REMARK   4 1GGD COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-AUG-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000001489.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 29-NOV-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 277.0                              
REMARK 200  PH                             : 7.0                                
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 RU200                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : AREA DETECTOR                      
REMARK 200  DETECTOR MANUFACTURER          : SIEMENS                            
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 34112                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 88.0                               
REMARK 200  DATA REDUNDANCY                : 3.900                              
REMARK 200  R MERGE                    (I) : 0.04300                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.55                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 55.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.18400                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: XCALIBRE                                              
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 47.93                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.36                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, POTASSIUM PHOSPHATE,   
REMARK 280  PH 7.0, VAPOR DIFFUSION, TEMPERATURE 298.0K                         
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       34.80000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       34.80000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       48.77500            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       34.80000            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       34.80000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       48.77500            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       34.80000            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       34.80000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       48.77500            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       34.80000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       34.80000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       48.77500            
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, 3                                                 
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: TRIMERIC                          
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 7820 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 10000 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -78.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
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                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 17850 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 17790 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -173.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
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 -1.000000  0.000000  0.000000       69.60000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 16320 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 19320 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -160.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1 -1.000000  0.000000  0.000000       34.80000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000      -34.80000            
REMARK 350   BIOMT3   1  0.000000  0.000000 -1.000000       48.77500            
REMARK 350   BIOMT1   2  1.000000  0.000000  0.000000       34.80000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       34.80000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       48.77500            
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, C                                  
REMARK 350   BIOMT1   3  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   4 -1.000000  0.000000  0.000000       69.60000            
REMARK 350   BIOMT2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   4  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 B 582  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH B 658  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH C 652  LIES ON A SPECIAL POSITION.                          
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     ALA C   149                                                      
REMARK 465     ASN C   150                                                      
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    ASN B  48     -179.01   -175.64                                   
REMARK 500    PHE B  71      -58.13   -125.69                                   
REMARK 500    SER C 214      -71.18   -117.48                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 401                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FAF C 301                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1GG6   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STUCTURE OF GAMMA CHYMOTRYPSIN WITH N-ACETYL-PHENYLALANINE   
REMARK 900 TRIFLUOROMETHYL KETONE BOUND AT THE ACTIVE SITE                      
DBREF  1GGD A    1    10  UNP    P00766   CTRA_BOVIN       1     10             
DBREF  1GGD B   16   146  UNP    P00766   CTRA_BOVIN      16    146             
DBREF  1GGD C  149   245  UNP    P00766   CTRA_BOVIN     149    245             
SEQRES   1 A   10  CYS GLY VAL PRO ALA ILE GLN PRO VAL LEU                      
SEQRES   1 B  131  ILE VAL ASN GLY GLU GLU ALA VAL PRO GLY SER TRP PRO          
SEQRES   2 B  131  TRP GLN VAL SER LEU GLN ASP LYS THR GLY PHE HIS PHE          
SEQRES   3 B  131  CYS GLY GLY SER LEU ILE ASN GLU ASN TRP VAL VAL THR          
SEQRES   4 B  131  ALA ALA HIS CYS GLY VAL THR THR SER ASP VAL VAL VAL          
SEQRES   5 B  131  ALA GLY GLU PHE ASP GLN GLY SER SER SER GLU LYS ILE          
SEQRES   6 B  131  GLN LYS LEU LYS ILE ALA LYS VAL PHE LYS ASN SER LYS          
SEQRES   7 B  131  TYR ASN SER LEU THR ILE ASN ASN ASP ILE THR LEU LEU          
SEQRES   8 B  131  LYS LEU SER THR ALA ALA SER PHE SER GLN THR VAL SER          
SEQRES   9 B  131  ALA VAL CYS LEU PRO SER ALA SER ASP ASP PHE ALA ALA          
SEQRES  10 B  131  GLY THR THR CYS VAL THR THR GLY TRP GLY LEU THR ARG          
SEQRES  11 B  131  TYR                                                          
SEQRES   1 C   97  ALA ASN THR PRO ASP ARG LEU GLN GLN ALA SER LEU PRO          
SEQRES   2 C   97  LEU LEU SER ASN THR ASN CYS LYS LYS TYR TRP GLY THR          
SEQRES   3 C   97  LYS ILE LYS ASP ALA MET ILE CYS ALA GLY ALA SER GLY          
SEQRES   4 C   97  VAL SER SER CYS MET GLY ASP SER GLY GLY PRO LEU VAL          
SEQRES   5 C   97  CYS LYS LYS ASN GLY ALA TRP THR LEU VAL GLY ILE VAL          
SEQRES   6 C   97  SER TRP GLY SER SER THR CYS SER THR SER THR PRO GLY          
SEQRES   7 C   97  VAL TYR ALA ARG VAL THR ALA LEU VAL ASN TRP VAL GLN          
SEQRES   8 C   97  GLN THR LEU ALA ALA ASN                                      
HET    SO4  B 401       5                                                       
HET    FAF  C 301      23                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     FAF 2-ACETYLAMINO-4-METHYL-PENTANOIC ACID (1-FORMYL-2-               
HETNAM   2 FAF  PHENYL-ETHYL)-AMIDE                                             
FORMUL   4  SO4    O4 S 2-                                                      
FORMUL   5  FAF    C17 H24 N2 O3                                                
FORMUL   6  HOH   *215(H2 O)                                                    
HELIX    1   1 ALA B   55  GLY B   59  5                                   5    
HELIX    2   2 SER C  164  GLY C  173  1                                  10    
HELIX    3   3 THR C  174  ILE C  176  5                                   3    
HELIX    4   4 LEU C  234  ASN C  245  1                                  12    
SHEET    1   A 7 GLU B  20  GLU B  21  0                                        
SHEET    2   A 7 GLN C 156  PRO C 161 -1  N  GLN C 157   O  GLU B  20           
SHEET    3   A 7 THR B 135  GLY B 140 -1  N  CYS B 136   O  LEU C 160           
SHEET    4   A 7 PRO C 198  LYS C 203 -1  O  PRO C 198   N  THR B 139           
SHEET    5   A 7 ALA C 206  TRP C 215 -1  O  ALA C 206   N  LYS C 203           
SHEET    6   A 7 PRO C 225  ARG C 230 -1  N  VAL C 227   O  TRP C 215           
SHEET    7   A 7 MET C 180  GLY C 184 -1  O  ILE C 181   N  TYR C 228           
SHEET    1   B 7 GLN B  30  GLN B  34  0                                        
SHEET    2   B 7 HIS B  40  ASN B  48 -1  N  PHE B  41   O  LEU B  33           
SHEET    3   B 7 TRP B  51  THR B  54 -1  O  TRP B  51   N  ILE B  47           
SHEET    4   B 7 THR B 104  LEU B 108 -1  N  THR B 104   O  THR B  54           
SHEET    5   B 7 GLN B  81  LYS B  90 -1  N  ALA B  86   O  LYS B 107           
SHEET    6   B 7 VAL B  65  ALA B  68 -1  O  VAL B  66   N  LEU B  83           
SHEET    7   B 7 GLN B  30  GLN B  34 -1  O  SER B  32   N  VAL B  67           
SSBOND   1 CYS A    1    CYS B  122                          1555   1555  2.03  
SSBOND   2 CYS B   42    CYS B   58                          1555   1555  2.03  
SSBOND   3 CYS B  136    CYS C  201                          1555   1555  2.03  
SSBOND   4 CYS C  168    CYS C  182                          1555   1555  2.03  
SSBOND   5 CYS C  191    CYS C  220                          1555   1555  2.04  
LINK         OG  SER C 195                 CW  FAF C 301     1555   1555  1.41  
SITE     1 AC1  8 HOH A 544  HOH A 645  LYS B  36  SER B  92                    
SITE     2 AC1  8 HOH B 560  HOH B 604  TRP C 237  HOH C 656                    
SITE     1 AC2 13 HIS B  57  SER C 190  CYS C 191  MET C 192                    
SITE     2 AC2 13 GLY C 193  ASP C 194  SER C 195  SER C 214                    
SITE     3 AC2 13 TRP C 215  GLY C 216  SER C 217  HOH C 640                    
SITE     4 AC2 13 HOH C 711                                                     
CRYST1   69.600   69.600   97.550  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      0.014368  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.014368  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.010251        0.00000