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Database: PDB
Entry: 1YF4
LinkDB: 1YF4
Original site: 1YF4 
HEADER    HYDROLASE/HORMONE/GROWTH FACTOR         30-DEC-04   1YF4              
TITLE     CRYSTAL STRUCTURE OF TRYPSIN-VASOPRESSIN COMPLEX                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRYPSIN;                                                   
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 3.4.21.4;                                                        
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: VASOPRESSIN;                                               
COMPND   7 CHAIN: B;                                                            
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SUS SCROFA;                                     
SOURCE   3 ORGANISM_COMMON: PIG;                                                
SOURCE   4 ORGANISM_TAXID: 9823;                                                
SOURCE   5 MOL_ID: 2;                                                           
SOURCE   6 SYNTHETIC: YES;                                                      
SOURCE   7 OTHER_DETAILS: SYNTHETHIC PEPTIDE                                    
KEYWDS    TRYPSIN, VASOPRESSIN, PEPTIDE BINDING,                                
KEYWDS   2 HYDROLASE/HORMONE/GROWTH FACTOR COMPLEX                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    B.SYED IBRAHIM,V.PATTABHI                                             
REVDAT   2   24-FEB-09 1YF4    1       VERSN                                    
REVDAT   1   24-MAY-05 1YF4    0                                                
JRNL        AUTH   B.SYED IBRAHIM,V.PATTABHI                                    
JRNL        TITL   TRYPSIN INHIBITION BY A PEPTIDE HORMONE: CRYSTAL             
JRNL        TITL 2 STRUCTURE OF TRYPSIN-VASOPRESSIN COMPLEX                     
JRNL        REF    J.MOL.BIOL.                   V. 348  1191 2005              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   15854654                                                     
JRNL        DOI    10.1016/J.JMB.2005.03.034                                    
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.98 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.0                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES, PANNU,             
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.98                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 40.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 447229.340                     
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 78.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 14352                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.185                           
REMARK   3   FREE R VALUE                     : 0.226                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 721                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.008                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 10                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.98                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.05                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 67.10                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 1136                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2500                       
REMARK   3   BIN FREE R VALUE                    : 0.3070                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 5.20                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 62                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.039                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1717                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 1                                       
REMARK   3   SOLVENT ATOMS            : 136                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 7.60                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 18.80                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.00000                                              
REMARK   3    B22 (A**2) : 0.00000                                              
REMARK   3    B33 (A**2) : 0.00000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.20                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.18                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.26                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.21                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.005                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.30                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 25.50                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.68                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
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  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.37                                                 
REMARK   3   BSOL        : 54.55                                                
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  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  3  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  4  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  3   : ION.TOP                                        
REMARK   3  TOPOLOGY FILE  4   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: USED MAXIMUMLIKELIHOOD PROCEDURE          
REMARK   4                                                                      
REMARK   4 1YF4 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 05-JAN-05.                  
REMARK 100 THE RCSB ID CODE IS RCSB031444.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 07-OCT-03                          
REMARK 200  TEMPERATURE           (KELVIN) : 300                                
REMARK 200  PH                             : 6.3                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : ENRAF-NONIUS                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : OSMIC MIRRORS                      
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : AREA DETECTOR                      
REMARK 200  DETECTOR MANUFACTURER          : ENRAF-NONIUS                       
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MARXDS, DENZO                      
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 14352                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.980                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 40.000                             
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) : 0.08700                            
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) : 1.98                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.03                     
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: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: PORCINE BETA TRRYPSIN                                
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 53.06                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.64                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: ACETATE BUFFER, PH 6.3, VAPOR            
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 273K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
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       29.63700            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       34.57300            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       30.97650            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       34.57300            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       29.63700            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       30.97650            
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 300 REMARK: BIOLOGICAL ASSEMBLY CONTAINS 1 MOLECULE OF TRYPSIN AND 1     
REMARK 300 MOECULE OF VASOPRESSIN                                               
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 1530 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 9290 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -15.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    GLU A 186   CD    GLU A 186   OE2     0.078                       
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    SER A  37       54.25   -148.85                                   
REMARK 500    HIS A  71      -61.71   -128.74                                   
REMARK 500    ASN A 115     -156.12   -147.45                                   
REMARK 500    SER A 150      110.75   -169.67                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620  (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;              
REMARK 620  SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                            
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A   1  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A  70   OE1                                                    
REMARK 620 2 GLU A  77   OE1  96.7                                              
REMARK 620 3 ASN A  72   O    92.9  86.6                                        
REMARK 620 4 VAL A  75   O   170.5  91.1  82.1                                  
REMARK 620 5 GLU A  80   OE1 103.1  74.5 156.3  84.1                            
REMARK 620 6 HOH A 246   O    78.3 172.1  99.7  94.5 100.5                      
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 1                    
DBREF  1YF4 A   16   245  UNP    P00761   TRYP_PIG         9    231             
DBREF  1YF4 B    1    10  PDB    1YF4     1YF4             1     10             
SEQRES   1 A  223  ILE VAL GLY GLY TYR THR CYS ALA ALA ASN SER ILE PRO          
SEQRES   2 A  223  TYR GLN VAL SER LEU ASN SER GLY SER HIS PHE CYS GLY          
SEQRES   3 A  223  GLY SER LEU ILE ASN SER GLN TRP VAL VAL SER ALA ALA          
SEQRES   4 A  223  HIS CYS TYR LYS SER ARG ILE GLN VAL ARG LEU GLY GLU          
SEQRES   5 A  223  HIS ASN ILE ASP VAL LEU GLU GLY ASN GLU GLN PHE ILE          
SEQRES   6 A  223  ASN ALA ALA LYS ILE ILE THR HIS PRO ASN PHE ASN GLY          
SEQRES   7 A  223  ASN THR LEU ASP ASN ASP ILE MET LEU ILE LYS LEU SER          
SEQRES   8 A  223  SER PRO ALA THR LEU ASN SER ARG VAL ALA THR VAL SER          
SEQRES   9 A  223  LEU PRO ARG SER CYS ALA ALA ALA GLY THR GLU CYS LEU          
SEQRES  10 A  223  ILE SER GLY TRP GLY ASN THR LYS SER SER GLY SER SER          
SEQRES  11 A  223  TYR PRO SER LEU LEU GLN CYS LEU LYS ALA PRO VAL LEU          
SEQRES  12 A  223  SER ASP SER SER CYS LYS SER SER TYR PRO GLY GLN ILE          
SEQRES  13 A  223  THR GLY ASN MET ILE CYS VAL GLY PHE LEU GLU GLY GLY          
SEQRES  14 A  223  LYS ASP SER CYS GLN GLY ASP SER GLY GLY PRO VAL VAL          
SEQRES  15 A  223  CYS ASN GLY GLN LEU GLN GLY ILE VAL SER TRP GLY TYR          
SEQRES  16 A  223  GLY CYS ALA GLN LYS ASN LYS PRO GLY VAL TYR THR LYS          
SEQRES  17 A  223  VAL CYS ASN TYR VAL ASN TRP ILE GLN GLN THR ILE ALA          
SEQRES  18 A  223  ALA ASN                                                      
SEQRES   1 B   10  CYS TYR PHE GLN ASN CYS PRO ARG GLY NH2                      
HET    NH2  B  10       1                                                       
HET     CA  A   1       1                                                       
HETNAM     NH2 AMINO GROUP                                                      
HETNAM      CA CALCIUM ION                                                      
FORMUL   2  NH2    H2 N                                                         
FORMUL   3   CA    CA 2+                                                        
FORMUL   4  HOH   *136(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 TYR A  234  ASN A  245  1                                  12    
SHEET    1   A 7 TYR A  20  THR A  21  0                                        
SHEET    2   A 7 GLN A 156  PRO A 161 -1  O  CYS A 157   N  TYR A  20           
SHEET    3   A 7 GLU A 135  GLY A 140 -1  N  ILE A 138   O  LEU A 158           
SHEET    4   A 7 PRO A 198  CYS A 201 -1  O  VAL A 200   N  LEU A 137           
SHEET    5   A 7 GLN A 204  TYR A 217 -1  O  GLN A 204   N  CYS A 201           
SHEET    6   A 7 GLY A 226  LYS A 230 -1  O  VAL A 227   N  TRP A 215           
SHEET    7   A 7 MET A 180  VAL A 183 -1  N  ILE A 181   O  TYR A 228           
SHEET    1   B 6 TYR A  20  THR A  21  0                                        
SHEET    2   B 6 GLN A 156  PRO A 161 -1  O  CYS A 157   N  TYR A  20           
SHEET    3   B 6 GLU A 135  GLY A 140 -1  N  ILE A 138   O  LEU A 158           
SHEET    4   B 6 PRO A 198  CYS A 201 -1  O  VAL A 200   N  LEU A 137           
SHEET    5   B 6 GLN A 204  TYR A 217 -1  O  GLN A 204   N  CYS A 201           
SHEET    6   B 6 ASN B   5  PRO B   7 -1  O  CYS B   6   N  GLY A 216           
SHEET    1   C 7 GLN A  30  ASN A  34  0                                        
SHEET    2   C 7 HIS A  40  ASN A  48 -1  O  CYS A  42   N  LEU A  33           
SHEET    3   C 7 TRP A  51  SER A  54 -1  O  VAL A  53   N  SER A  45           
SHEET    4   C 7 MET A 104  LEU A 108 -1  O  ILE A 106   N  VAL A  52           
SHEET    5   C 7 GLN A  81  THR A  90 -1  N  ALA A  86   O  LYS A 107           
SHEET    6   C 7 GLN A  64  LEU A  67 -1  N  LEU A  67   O  GLN A  81           
SHEET    7   C 7 GLN A  30  ASN A  34 -1  N  ASN A  34   O  GLN A  64           
SSBOND   1 CYS A   22    CYS A  157                          1555   1555  2.03  
SSBOND   2 CYS A   42    CYS A   58                          1555   1555  2.03  
SSBOND   3 CYS A  128    CYS A  232                          1555   1555  2.03  
SSBOND   4 CYS A  136    CYS A  201                          1555   1555  2.03  
SSBOND   5 CYS A  168    CYS A  182                          1555   1555  2.03  
SSBOND   6 CYS A  191    CYS A  220                          1555   1555  2.03  
SSBOND   7 CYS B    1    CYS B    6                          1555   1555  2.03  
LINK        CA    CA A   1                 OE1 GLU A  70     1555   1555  2.47  
LINK         C   GLY B   9                 N   NH2 B  10     1555   1555  1.33  
LINK        CA    CA A   1                 OE1 GLU A  77     1555   1555  2.84  
LINK        CA    CA A   1                 O   ASN A  72     1555   1555  2.53  
LINK        CA    CA A   1                 O   VAL A  75     1555   1555  2.51  
LINK        CA    CA A   1                 OE1 GLU A  80     1555   1555  2.59  
LINK        CA    CA A   1                 O   HOH A 246     1555   1555  2.66  
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 246                                          
CRYST1   59.274   61.953   69.146  90.00  90.00  90.00 P 21 21 21    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      0.016871  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.016141  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014462        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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