HEADER    SERINE PROTEINASE                       26-AUG-94   1BIT              
TITLE     THE CRYSTAL STRUCTURE OF ANIONIC SALMON TRYPSIN IN A SECOND CRYSTAL   
TITLE    2 FORM                                                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRYPSIN;                                                   
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SALMO SALAR;                                    
SOURCE   3 ORGANISM_COMMON: ATLANTIC SALMON;                                    
SOURCE   4 ORGANISM_TAXID: 8030                                                 
KEYWDS    SERINE PROTEINASE                                                     
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    G.I.BERGLUND                                                          
REVDAT   6   20-NOV-24 1BIT    1       REMARK LINK                              
REVDAT   5   14-AUG-19 1BIT    1       REMARK                                   
REVDAT   4   17-JUL-19 1BIT    1       REMARK                                   
REVDAT   3   25-AUG-09 1BIT    1       SOURCE                                   
REVDAT   2   24-FEB-09 1BIT    1       VERSN                                    
REVDAT   1   01-NOV-94 1BIT    0                                                
JRNL        AUTH   G.I.BERGLUND,A.O.SMALAS,A.HORDVIK,N.P.WILLASSEN              
JRNL        TITL   STRUCTURE OF ANIONIC SALMON TRYPSIN IN A SECOND CRYSTAL      
JRNL        TITL 2 FORM.                                                        
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  51   725 1995              
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   15299802                                                     
JRNL        DOI    10.1107/S0907444995000333                                    
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   A.O.SMALAS,E.S.HEIMSTAD,A.HORDVIK,N.P.WILLASSEN              
REMARK   1  TITL   COLD-ADAPTION OF ENZYMES: STRUCTURAL COMPARISON BETWEEN      
REMARK   1  TITL 2 SALMON AND BOVINE TRYPSINS                                   
REMARK   1  REF    TO BE PUBLISHED                                              
REMARK   1  REFN                                                                
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   A.O.SMALAS,A.HORDVIK                                         
REMARK   1  TITL   CRYSTAL STRUCTURE DETERMINATION AND REFINEMENT OF            
REMARK   1  TITL 2 BENZAMIDINE-INHIBITED TRYPSIN FROM THE NORTH ATLANTIC SALMON 
REMARK   1  TITL 3 (SALMO SALAR)                                                
REMARK   1  REF    ACTA CRYSTALLOGR.,SECT.D      V.  49   318 1993              
REMARK   1  REFN                   ISSN 0907-4449                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   A.O.SMALAS,A.HORDVIK,L.K.HANSEN,E.HOUGH,K.JYNGE              
REMARK   1  TITL   CRYSTALLIZATION AND PRELIMINARY X-RAY CRYSTALLOGRAPHIC       
REMARK   1  TITL 2 STUDIES OF BENZAMIDINE-INHIBITED TRYPSIN FROM THE NORTH      
REMARK   1  TITL 3 ATLANTIC SALMON (SALMO SALAR)                                
REMARK   1  REF    J.MOL.BIOL.                   V. 214   355 1990              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 4                                                          
REMARK   1  AUTH   H.D.BARTUNIK,L.J.SUMMERS,H.H.BARTSCH                         
REMARK   1  TITL   CRYSTAL STRUCTURE OF BOVINE B-TRYPSIN AT 1.5 ANGSTROMS       
REMARK   1  TITL 2 RESOLUTION IN A CRYSTAL FORM WITH LOW MOLECULAR PACKING      
REMARK   1  TITL 3 DENSITY                                                      
REMARK   1  REF    J.MOL.BIOL.                   V. 210   813 1989              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 5                                                          
REMARK   1  AUTH   M.MARQUART,J.WALTER,J.DEISENHOFER,W.BODE,R.HUBER             
REMARK   1  TITL   THE GEOMETRY OF THE REACTIVE SITE AND OF THE PEPTIDE GROUPS  
REMARK   1  TITL 2 IN TRYPSIN, TRYPSINOGEN AND ITS COMPLEXES WITH INHIBITORS    
REMARK   1  REF    ACTA CRYSTALLOGR.,SECT.B      V.  39   480 1983              
REMARK   1  REFN                   ISSN 0108-7681                               
REMARK   1 REFERENCE 6                                                          
REMARK   1  AUTH   J.H.CHAMBERS,R.M.STROUD                                      
REMARK   1  TITL   THE ACCURACY OF REFINED PROTEIN STRUCTURES: COMPARISON OF    
REMARK   1  TITL 2 TWO INDEPENDENTLY REFINED MODELS OF BOVINE TRYPSIN           
REMARK   1  REF    ACTA CRYSTALLOGR.,SECT.B      V.  35  1861 1979              
REMARK   1  REFN                   ISSN 0108-7681                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.83 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PROLSQ                                               
REMARK   3   AUTHORS     : KONNERT,HENDRICKSON                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.83                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 8.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 3.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 14271                          
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) : 0.199                           
REMARK   3   R VALUE            (WORKING SET) : 0.199                           
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            : 1662                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 24                                      
REMARK   3   SOLVENT ATOMS            : 125                                     
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  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : NULL  ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : NULL  ; NULL                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : NULL  ; NULL                
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) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : NULL  ; NULL                
REMARK   3    MULTIPLE TORSION                (A) : NULL  ; NULL                
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
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) : NULL  ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : NULL  ; NULL                
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; 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  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1BIT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000171808.                                   
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   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
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) : 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  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 36.78                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.95                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 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   -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       38.54500            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       41.16500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       38.54500            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       41.16500            
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: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     PHE A     1                                                      
REMARK 465     VAL A     2                                                      
REMARK 465     LEU A     3                                                      
REMARK 465     LEU A     4                                                      
REMARK 465     ILE A     5                                                      
REMARK 465     GLY A     6                                                      
REMARK 465     ALA A     7                                                      
REMARK 465     ALA A     8                                                      
REMARK 465     PHE A     9                                                      
REMARK 465     ALA A    10                                                      
REMARK 465     THR A    11                                                      
REMARK 465     GLU A    12                                                      
REMARK 465     ASP A    13                                                      
REMARK 465     ASP A    14                                                      
REMARK 465     LYS A    15                                                      
REMARK 475                                                                      
REMARK 475 ZERO OCCUPANCY RESIDUES                                              
REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY.             
REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT                
REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;                      
REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE)          
REMARK 475   M RES C  SSEQI                                                     
REMARK 475     SER A   244                                                      
REMARK 475     TYR A   245                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     LYS A   23   CG   CD   CE   NZ                                   
REMARK 480     GLU A   49   CD   OE1  OE2                                       
REMARK 480     ARG A   62   CG   CD   NE   CZ   NH1  NH2                        
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    ARG A  62   NE  -  CZ  -  NH1 ANGL. DEV. =   3.7 DEGREES          
REMARK 500    ARG A  66   NE  -  CZ  -  NH1 ANGL. DEV. =   4.2 DEGREES          
REMARK 500    ARG A  66   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.9 DEGREES          
REMARK 500    GLU A  80   CA  -  CB  -  CG  ANGL. DEV. =  20.6 DEGREES          
REMARK 500    ALA A 243   O   -  C   -  N   ANGL. DEV. = -25.8 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    TYR A  25       17.06     59.89                                   
REMARK 500    GLN A  27       63.36   -113.93                                   
REMARK 500    SER A  37       56.68   -140.31                                   
REMARK 500    HIS A  71      -63.64   -128.65                                   
REMARK 500    ASN A 115     -161.78   -164.67                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    ARG A  62         0.27    SIDE CHAIN                              
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    ALA A 243        -33.01                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600                                                                      
REMARK 600 CALCIUM (IDENTIFIER CA) IS STRUCTURALLY BOUND IN THE SAME            
REMARK 600 SEQUENTIAL POSITION AS FOR BOVINE TRYPSIN.                           
REMARK 600                                                                      
REMARK 600 A SULFATE ION HAS BEEN LOCATED AT THE ACTIVE SITE REGION             
REMARK 600 IN A SIMILAR POSITION REPORTED FOR BOVINE TRYPSIN.                   
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 248  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A  70   OE1                                                    
REMARK 620 2 ASN A  72   O    95.6                                              
REMARK 620 3 VAL A  75   O   162.0  77.9                                        
REMARK 620 4 GLU A  77   OE1  91.8  94.2 105.3                                  
REMARK 620 5 GLU A  80   OE2  94.5 169.2  93.4  81.8                            
REMARK 620 6 HOH A 331   O    77.0  97.9  87.2 164.2  87.9                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 248                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 249                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BEN A 246                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BEN A 247                 
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 THE AMINO ACID NUMBERING SYSTEM IS THE ONE ADOPTED FROM              
REMARK 999 CHYMOTRYPSINOGEN AND IS ALSO THE SAME AS USED FOR ALL THE            
REMARK 999 PDB ENTRIES OF TRYPSINS FROM OTHER SPECIES.                          
DBREF  1BIT A    1   245  PIR    S31776   S31776           6    242             
SEQRES   1 A  237  PHE VAL LEU LEU ILE GLY ALA ALA PHE ALA THR GLU ASP          
SEQRES   2 A  237  ASP LYS ILE VAL GLY GLY TYR GLU CYS LYS ALA TYR SER          
SEQRES   3 A  237  GLN ALA HIS GLN VAL SER LEU ASN SER GLY TYR HIS PHE          
SEQRES   4 A  237  CYS GLY GLY SER LEU VAL ASN GLU ASN TRP VAL VAL SER          
SEQRES   5 A  237  ALA ALA HIS CYS TYR LYS SER ARG VAL GLU VAL ARG LEU          
SEQRES   6 A  237  GLY GLU HIS ASN ILE LYS VAL THR GLU GLY SER GLU GLN          
SEQRES   7 A  237  PHE ILE SER SER SER ARG VAL ILE ARG HIS PRO ASN TYR          
SEQRES   8 A  237  SER SER TYR ASN ILE ASP ASN ASP ILE MET LEU ILE LYS          
SEQRES   9 A  237  LEU SER LYS PRO ALA THR LEU ASN THR TYR VAL GLN PRO          
SEQRES  10 A  237  VAL ALA LEU PRO THR SER CYS ALA PRO ALA GLY THR MET          
SEQRES  11 A  237  CYS THR VAL SER GLY TRP GLY ASN THR MET SER SER THR          
SEQRES  12 A  237  ALA ASP SER ASN LYS LEU GLN CYS LEU ASN ILE PRO ILE          
SEQRES  13 A  237  LEU SER TYR SER ASP CYS ASN ASN SER TYR PRO GLY MET          
SEQRES  14 A  237  ILE THR ASN ALA MET PHE CYS ALA GLY TYR LEU GLU GLY          
SEQRES  15 A  237  GLY LYS ASP SER CYS GLN GLY ASP SER GLY GLY PRO VAL          
SEQRES  16 A  237  VAL CYS ASN GLY GLU LEU GLN GLY VAL VAL SER TRP GLY          
SEQRES  17 A  237  TYR GLY CYS ALA GLU PRO GLY ASN PRO GLY VAL TYR ALA          
SEQRES  18 A  237  LYS VAL CYS ILE PHE ASN ASP TRP LEU THR SER THR MET          
SEQRES  19 A  237  ALA SER TYR                                                  
HET     CA  A 248       1                                                       
HET    SO4  A 249       5                                                       
HET    BEN  A 246       9                                                       
HET    BEN  A 247       9                                                       
HETNAM      CA CALCIUM ION                                                      
HETNAM     SO4 SULFATE ION                                                      
HETNAM     BEN BENZAMIDINE                                                      
FORMUL   2   CA    CA 2+                                                        
FORMUL   3  SO4    O4 S 2-                                                      
FORMUL   4  BEN    2(C7 H8 N2)                                                  
FORMUL   6  HOH   *125(H2 O)                                                    
HELIX    1   1 ALA A   55  TYR A   59  5                                   5    
HELIX    2   2 SER A  164  TYR A  172  1                                   9    
HELIX    3   3 PHE A  234  SER A  244  1                                  11    
SHEET    1   A 7 TYR A  20  GLU A  21  0                                        
SHEET    2   A 7 GLN A 156  PRO A 161 -1  N  CYS A 157   O  TYR A  20           
SHEET    3   A 7 MET A 135  GLY A 140 -1  N  CYS A 136   O  ILE A 160           
SHEET    4   A 7 PRO A 198  CYS A 201 -1  O  PRO A 198   N  SER A 139           
SHEET    5   A 7 GLU A 204  TRP A 215 -1  O  GLU A 204   N  CYS A 201           
SHEET    6   A 7 GLY A 226  LYS A 230 -1  N  VAL A 227   O  TRP A 215           
SHEET    7   A 7 MET A 180  ALA A 183 -1  O  PHE A 181   N  TYR A 228           
SHEET    1   B 7 GLN A  30  ASN A  34  0                                        
SHEET    2   B 7 HIS A  40  LEU A  46 -1  N  PHE A  41   O  LEU A  33           
SHEET    3   B 7 TRP A  51  SER A  54 -1  N  VAL A  53   O  SER A  45           
SHEET    4   B 7 MET A 104  LEU A 108 -1  N  MET A 104   O  SER A  54           
SHEET    5   B 7 GLN A  81  ARG A  90 -1  N  SER A  86   O  LYS A 107           
SHEET    6   B 7 GLU A  64  LEU A  67 -1  N  VAL A  65   O  ILE A  83           
SHEET    7   B 7 GLN A  30  ASN A  34 -1  O  SER A  32   N  ARG A  66           
SSBOND   1 CYS A   22    CYS A  157                          1555   1555  2.07  
SSBOND   2 CYS A   42    CYS A   58                          1555   1555  1.98  
SSBOND   3 CYS A  128    CYS A  232                          1555   1555  2.07  
SSBOND   4 CYS A  136    CYS A  201                          1555   1555  1.93  
SSBOND   5 CYS A  168    CYS A  182                          1555   1555  1.96  
SSBOND   6 CYS A  191    CYS A  220                          1555   1555  2.09  
LINK         OE1 GLU A  70                CA    CA A 248     1555   1555  2.38  
LINK         O   ASN A  72                CA    CA A 248     1555   1555  2.43  
LINK         O   VAL A  75                CA    CA A 248     1555   1555  2.30  
LINK         OE1 GLU A  77                CA    CA A 248     1555   1555  2.57  
LINK         OE2 GLU A  80                CA    CA A 248     1555   1555  2.45  
LINK        CA    CA A 248                 O   HOH A 331     1555   1555  2.50  
SITE     1 AC1  6 GLU A  70  ASN A  72  VAL A  75  GLU A  77                    
SITE     2 AC1  6 GLU A  80  HOH A 331                                          
SITE     1 AC2  6 HIS A  57  GLN A 192  GLY A 193  SER A 195                    
SITE     2 AC2  6 BEN A 246  HOH A 336                                          
SITE     1 AC3 10 ASP A 189  SER A 190  CYS A 191  SER A 195                    
SITE     2 AC3 10 VAL A 213  TRP A 215  GLY A 216  GLY A 219                    
SITE     3 AC3 10 GLY A 226  SO4 A 249                                          
SITE     1 AC4  8 THR A  76  PHE A  82  SER A 171  PRO A 173                    
SITE     2 AC4  8 MET A 175  GLY A 223  ASN A 224  HOH A 358                    
CRYST1   77.090   82.330   31.160  90.00  90.00  90.00 P 21 21 2     4          
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      0.012972  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.012146  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.032092        0.00000