HEADER    HYDROLASE                               19-OCT-05   2BD1              
TITLE     A POSSIBLE ROLE OF THE SECOND CALCIUM ION IN INTERFACIAL BINDING:     
TITLE    2 ATOMIC AND MEDIUM RESOLUTION CRYSTAL STRUCTURES OF THE QUADRUPLE     
TITLE    3 MUTANT OF PHOSPHOLIPASE A2                                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PHOSPHOLIPASE A2;                                          
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: PHOSPHATIDYLCHOLINE 2-ACYLHYDROLASE, GROUP IB PHOSPHOLIPASE 
COMPND   5 A2;                                                                  
COMPND   6 EC: 3.1.1.4;                                                         
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BOS TAURUS;                                     
SOURCE   3 ORGANISM_COMMON: CATTLE;                                             
SOURCE   4 ORGANISM_TAXID: 9913;                                                
SOURCE   5 GENE: PLA2G1B;                                                       
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3) PLYSS;                          
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PTO-A2MBL21                               
KEYWDS    ALPHA HELIX, BETA SHEET, HYDROLASE                                    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    K.SEKAR,D.VELMURUGAN,M.D.TSAI                                         
REVDAT   6   30-OCT-24 2BD1    1       REMARK                                   
REVDAT   5   23-AUG-23 2BD1    1       REMARK                                   
REVDAT   4   20-OCT-21 2BD1    1       REMARK SEQADV LINK                       
REVDAT   3   11-OCT-17 2BD1    1       REMARK                                   
REVDAT   2   24-FEB-09 2BD1    1       VERSN                                    
REVDAT   1   04-JUL-06 2BD1    0                                                
JRNL        AUTH   K.SEKAR,M.YOGAVEL,S.P.KANAUJIA,A.SHARMA,D.VELMURUGAN,        
JRNL        AUTH 2 M.J.POI,Z.DAUTER,M.D.TSAI                                    
JRNL        TITL   SUGGESTIVE EVIDENCE FOR THE INVOLVEMENT OF THE SECOND        
JRNL        TITL 2 CALCIUM AND SURFACE LOOP IN INTERFACIAL BINDING: MONOCLINIC  
JRNL        TITL 3 AND TRIGONAL CRYSTAL STRUCTURES OF A QUADRUPLE MUTANT OF     
JRNL        TITL 4 PHOSPHOLIPASE A(2).                                          
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  62   717 2006              
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   16790927                                                     
JRNL        DOI    10.1107/S0907444906014855                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.90 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1                                              
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) : 1.90                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 14.69                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 94.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 13340                          
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) : 0.207                           
REMARK   3   FREE R VALUE                     : 0.240                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 1071                            
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) : 1.90                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.99                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 70.10                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2980                       
REMARK   3   BIN FREE R VALUE                    : 0.2990                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 131                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.026                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1906                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 20                                      
REMARK   3   SOLVENT ATOMS            : 218                                     
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) : -0.15000                                             
REMARK   3    B22 (A**2) : 0.49000                                              
REMARK   3    B33 (A**2) : -0.34000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : -0.28000                                             
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.22                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.19                            
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) : 0.19                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : NULL                            
REMARK   3   BOND ANGLES            (DEGREES) : NULL                            
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  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : 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: NULL                                      
REMARK   4                                                                      
REMARK   4 2BD1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-OCT-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000034950.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : 293                                
REMARK 200  PH                             : 7.2                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : MACSCIENCE                         
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                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU                             
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MAR                                
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 13356                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.900                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 14.690                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 94.7                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.09300                            
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) : 1.90                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.99                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.45800                            
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: AMORE                                                 
REMARK 200 STARTING MODEL: 1UNE, 1MKT                                           
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.24                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.17                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: THE CRYSTALLIZATION DROPLET CONTAINED    
REMARK 280  5 MICRO LITRE OF PROTEIN (18 TO 20 MG/ML) IN 50 MM TRIS BUFFER      
REMARK 280  WITH 2 MICRO LITRE OF MPD (60%) AND THE RESERVOIR CONTAINED 70%     
REMARK 280  OF MPD., PH 7.2, VAPOR DIFFUSION, TEMPERATURE 293K                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   X+1/2,Y+1/2,Z                                           
REMARK 290       4555   -X+1/2,Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       37.29000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       24.34500            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       37.29000            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       24.34500            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 300 REMARK: THERE ARE TWO MONOMERS (SAME COPY) ARE IN THE ASYMMMETRYIC   
REMARK 300 UNIT. THE BIOLOGICAL ASSEMBLY ITSELF IS A MONOMER                    
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 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    VAL A    63     N    LEU A    64              1.73            
REMARK 500   O    HOH B   322     O    HOH B   370              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   OE2  GLU B    87     O    HOH A   349     3455     1.98            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    VAL A  63   CB  -  CA  -  C   ANGL. DEV. = -18.2 DEGREES          
REMARK 500    VAL A  63   O   -  C   -  N   ANGL. DEV. = -34.7 DEGREES          
REMARK 500    LEU A  64   N   -  CA  -  C   ANGL. DEV. =  21.5 DEGREES          
REMARK 500    LEU A  64   CA  -  C   -  N   ANGL. DEV. = -19.0 DEGREES          
REMARK 500    LEU A  64   O   -  C   -  N   ANGL. DEV. =  13.1 DEGREES          
REMARK 500    LEU A 118   CA  -  CB  -  CG  ANGL. DEV. =  32.1 DEGREES          
REMARK 500    LYS B  10   CD  -  CE  -  NZ  ANGL. DEV. =  23.8 DEGREES          
REMARK 500    LEU B  31   CA  -  CB  -  CG  ANGL. DEV. = -27.5 DEGREES          
REMARK 500    LYS B  62   CG  -  CD  -  CE  ANGL. DEV. =  30.1 DEGREES          
REMARK 500    VAL B  63   O   -  C   -  N   ANGL. DEV. = -27.6 DEGREES          
REMARK 500    LEU B  64   N   -  CA  -  C   ANGL. DEV. =  17.0 DEGREES          
REMARK 500    LEU B  64   CA  -  C   -  N   ANGL. DEV. = -15.1 DEGREES          
REMARK 500    GLU B  87   N   -  CA  -  CB  ANGL. DEV. =  28.2 DEGREES          
REMARK 500    GLU B  87   CA  -  CB  -  CG  ANGL. DEV. =  31.0 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    LEU A  64      -36.51     -9.94                                   
REMARK 500    VAL B  63      175.95    -52.01                                   
REMARK 500    LEU B  64      -21.97    -17.68                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 VAL A   63     LEU A   64                 -137.71                    
REMARK 500 VAL B   63     LEU B   64                 -143.52                    
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    VAL A  63        -35.53                                           
REMARK 500    LEU A  64        -10.69                                           
REMARK 500    VAL B  63        -32.70                                           
REMARK 500    LEU B  64        -18.53                                           
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 847  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 TYR A  28   O                                                      
REMARK 620 2 GLY A  30   O    87.2                                              
REMARK 620 3 GLY A  32   O    93.7  80.8                                        
REMARK 620 4 ASP A  49   OD1 108.4 139.5 132.7                                  
REMARK 620 5 ASP A  49   OD2 100.1 163.0  83.4  52.5                            
REMARK 620 6 HOH A 202   O    79.5  68.5 148.8  77.8 127.8                      
REMARK 620 7 HOH A 208   O   166.2  79.6  80.2  84.6  91.5  99.3                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 848  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN A  71   OD1                                                    
REMARK 620 2 ASN A  72   O    82.3                                              
REMARK 620 3 GLU A  92   OE2 106.4  85.0                                        
REMARK 620 4 HOH A 226   O   160.7  98.0  92.9                                  
REMARK 620 5 HOH A 238   O    90.6  96.0 163.0  70.2                            
REMARK 620 6 HOH A 239   O    91.7 168.5  87.3  90.9  93.8                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA B 849  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 TYR B  28   O                                                      
REMARK 620 2 GLY B  30   O    88.6                                              
REMARK 620 3 GLY B  32   O    92.0  77.0                                        
REMARK 620 4 ASP B  49   OD1 108.4 140.7 134.9                                  
REMARK 620 5 ASP B  49   OD2  95.9 162.8  86.1  52.9                            
REMARK 620 6 HOH B 203   O    81.0  71.7 148.1  76.3 125.4                      
REMARK 620 7 HOH B 206   O   168.0  80.1  81.8  83.0  93.9  98.9                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA B 850  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN B  71   OD1                                                    
REMARK 620 2 ASN B  72   O    85.0                                              
REMARK 620 3 GLU B  92   OE2 111.5  84.4                                        
REMARK 620 4 HOH B 245   O    88.1  94.8 160.1                                  
REMARK 620 5 HOH B 254   O    95.7 177.1  92.8  88.0                            
REMARK 620 6 HOH B 261   O   151.6  92.3  96.2  63.9  88.5                      
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 847                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 848                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 849                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 850                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MPD A 723                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MPD B 724                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1UNE   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1MKT   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1VL9   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2BCH   RELATED DB: PDB                                   
DBREF  2BD1 A    1   123  UNP    P00593   PA21B_BOVIN     23    145             
DBREF  2BD1 B    1   123  UNP    P00593   PA21B_BOVIN     23    145             
SEQADV 2BD1 MET A   53  UNP  P00593    LYS    75 ENGINEERED MUTATION            
SEQADV 2BD1 MET A   56  UNP  P00593    LYS    78 ENGINEERED MUTATION            
SEQADV 2BD1 MET A  120  UNP  P00593    LYS   142 ENGINEERED MUTATION            
SEQADV 2BD1 MET A  121  UNP  P00593    LYS   143 ENGINEERED MUTATION            
SEQADV 2BD1 MET B   53  UNP  P00593    LYS    75 ENGINEERED MUTATION            
SEQADV 2BD1 MET B   56  UNP  P00593    LYS    78 ENGINEERED MUTATION            
SEQADV 2BD1 MET B  120  UNP  P00593    LYS   142 ENGINEERED MUTATION            
SEQADV 2BD1 MET B  121  UNP  P00593    LYS   143 ENGINEERED MUTATION            
SEQRES   1 A  123  ALA LEU TRP GLN PHE ASN GLY MET ILE LYS CYS LYS ILE          
SEQRES   2 A  123  PRO SER SER GLU PRO LEU LEU ASP PHE ASN ASN TYR GLY          
SEQRES   3 A  123  CYS TYR CYS GLY LEU GLY GLY SER GLY THR PRO VAL ASP          
SEQRES   4 A  123  ASP LEU ASP ARG CYS CYS GLN THR HIS ASP ASN CYS TYR          
SEQRES   5 A  123  MET GLN ALA MET LYS LEU ASP SER CYS LYS VAL LEU VAL          
SEQRES   6 A  123  ASP ASN PRO TYR THR ASN ASN TYR SER TYR SER CYS SER          
SEQRES   7 A  123  ASN ASN GLU ILE THR CYS SER SER GLU ASN ASN ALA CYS          
SEQRES   8 A  123  GLU ALA PHE ILE CYS ASN CYS ASP ARG ASN ALA ALA ILE          
SEQRES   9 A  123  CYS PHE SER LYS VAL PRO TYR ASN LYS GLU HIS LYS ASN          
SEQRES  10 A  123  LEU ASP MET MET ASN CYS                                      
SEQRES   1 B  123  ALA LEU TRP GLN PHE ASN GLY MET ILE LYS CYS LYS ILE          
SEQRES   2 B  123  PRO SER SER GLU PRO LEU LEU ASP PHE ASN ASN TYR GLY          
SEQRES   3 B  123  CYS TYR CYS GLY LEU GLY GLY SER GLY THR PRO VAL ASP          
SEQRES   4 B  123  ASP LEU ASP ARG CYS CYS GLN THR HIS ASP ASN CYS TYR          
SEQRES   5 B  123  MET GLN ALA MET LYS LEU ASP SER CYS LYS VAL LEU VAL          
SEQRES   6 B  123  ASP ASN PRO TYR THR ASN ASN TYR SER TYR SER CYS SER          
SEQRES   7 B  123  ASN ASN GLU ILE THR CYS SER SER GLU ASN ASN ALA CYS          
SEQRES   8 B  123  GLU ALA PHE ILE CYS ASN CYS ASP ARG ASN ALA ALA ILE          
SEQRES   9 B  123  CYS PHE SER LYS VAL PRO TYR ASN LYS GLU HIS LYS ASN          
SEQRES  10 B  123  LEU ASP MET MET ASN CYS                                      
HET     CA  A 847       1                                                       
HET     CA  A 848       1                                                       
HET    MPD  A 723       8                                                       
HET     CA  B 849       1                                                       
HET     CA  B 850       1                                                       
HET    MPD  B 724       8                                                       
HETNAM      CA CALCIUM ION                                                      
HETNAM     MPD (4S)-2-METHYL-2,4-PENTANEDIOL                                    
FORMUL   3   CA    4(CA 2+)                                                     
FORMUL   5  MPD    2(C6 H14 O2)                                                 
FORMUL   9  HOH   *218(H2 O)                                                    
HELIX    1   1 ALA A    1  ILE A   13  1                                  13    
HELIX    2   2 GLU A   17  PHE A   22  1                                   6    
HELIX    3   3 ASP A   39  LEU A   58  1                                  20    
HELIX    4   4 ASN A   89  LYS A  108  1                                  20    
HELIX    5   5 ASN A  112  LYS A  116  5                                   5    
HELIX    6   6 ASP A  119  CYS A  123  5                                   5    
HELIX    7   7 ALA B    1  ILE B   13  1                                  13    
HELIX    8   8 GLU B   17  PHE B   22  1                                   6    
HELIX    9   9 ASP B   39  LEU B   58  1                                  20    
HELIX   10  10 ASN B   89  VAL B  109  1                                  21    
HELIX   11  11 ASN B  112  LYS B  116  5                                   5    
HELIX   12  12 ASP B  119  CYS B  123  5                                   5    
SHEET    1   A 2 TYR A  75  CYS A  77  0                                        
SHEET    2   A 2 ILE A  82  CYS A  84 -1  O  THR A  83   N  SER A  76           
SHEET    1   B 2 TYR B  75  CYS B  77  0                                        
SHEET    2   B 2 ILE B  82  CYS B  84 -1  O  THR B  83   N  SER B  76           
SSBOND   1 CYS A   11    CYS A   77                          1555   1555  2.75  
SSBOND   2 CYS A   27    CYS A  123                          1555   1555  2.57  
SSBOND   3 CYS A   29    CYS A   45                          1555   1555  2.44  
SSBOND   4 CYS A   44    CYS A  105                          1555   1555  2.54  
SSBOND   5 CYS A   51    CYS A   98                          1555   1555  2.55  
SSBOND   6 CYS A   61    CYS A   91                          1555   1555  2.60  
SSBOND   7 CYS A   84    CYS A   96                          1555   1555  2.59  
SSBOND   8 CYS B   11    CYS B   77                          1555   1555  2.03  
SSBOND   9 CYS B   27    CYS B  123                          1555   1555  2.02  
SSBOND  10 CYS B   29    CYS B   45                          1555   1555  2.02  
SSBOND  11 CYS B   44    CYS B  105                          1555   1555  2.03  
SSBOND  12 CYS B   51    CYS B   98                          1555   1555  2.03  
SSBOND  13 CYS B   61    CYS B   91                          1555   1555  2.03  
SSBOND  14 CYS B   84    CYS B   96                          1555   1555  2.03  
LINK         O   TYR A  28                CA    CA A 847     1555   1555  2.31  
LINK         O   GLY A  30                CA    CA A 847     1555   1555  2.34  
LINK         O   GLY A  32                CA    CA A 847     1555   1555  2.37  
LINK         OD1 ASP A  49                CA    CA A 847     1555   1555  2.58  
LINK         OD2 ASP A  49                CA    CA A 847     1555   1555  2.37  
LINK         OD1 ASN A  71                CA    CA A 848     1555   1555  2.40  
LINK         O   ASN A  72                CA    CA A 848     1555   1555  2.40  
LINK         OE2 GLU A  92                CA    CA A 848     1555   1555  2.43  
LINK         O   HOH A 202                CA    CA A 847     1555   1555  2.47  
LINK         O   HOH A 208                CA    CA A 847     1555   1555  2.51  
LINK         O   HOH A 226                CA    CA A 848     1555   1555  2.33  
LINK         O   HOH A 238                CA    CA A 848     1555   1555  2.74  
LINK         O   HOH A 239                CA    CA A 848     1555   1555  2.35  
LINK         O   TYR B  28                CA    CA B 849     1555   1555  2.28  
LINK         O   GLY B  30                CA    CA B 849     1555   1555  2.36  
LINK         O   GLY B  32                CA    CA B 849     1555   1555  2.38  
LINK         OD1 ASP B  49                CA    CA B 849     1555   1555  2.56  
LINK         OD2 ASP B  49                CA    CA B 849     1555   1555  2.34  
LINK         OD1 ASN B  71                CA    CA B 850     1555   1555  2.28  
LINK         O   ASN B  72                CA    CA B 850     1555   1555  2.37  
LINK         OE2 GLU B  92                CA    CA B 850     1555   1555  2.42  
LINK         O   HOH B 203                CA    CA B 849     1555   1555  2.45  
LINK         O   HOH B 206                CA    CA B 849     1555   1555  2.49  
LINK         O   HOH B 245                CA    CA B 850     1555   1555  2.88  
LINK         O   HOH B 254                CA    CA B 850     1555   1555  2.24  
LINK         O   HOH B 261                CA    CA B 850     1555   1555  2.36  
SITE     1 AC1  6 TYR A  28  GLY A  30  GLY A  32  ASP A  49                    
SITE     2 AC1  6 HOH A 202  HOH A 208                                          
SITE     1 AC2  6 ASN A  71  ASN A  72  GLU A  92  HOH A 226                    
SITE     2 AC2  6 HOH A 238  HOH A 239                                          
SITE     1 AC3  6 TYR B  28  GLY B  30  GLY B  32  ASP B  49                    
SITE     2 AC3  6 HOH B 203  HOH B 206                                          
SITE     1 AC4  6 ASN B  71  ASN B  72  GLU B  92  HOH B 245                    
SITE     2 AC4  6 HOH B 254  HOH B 261                                          
SITE     1 AC5  5 PHE A  22  GLY A  30  LEU A  31  HIS A  48                    
SITE     2 AC5  5 HOH A 202                                                     
SITE     1 AC6  3 PHE B  22  GLY B  30  HOH B 203                               
CRYST1   74.580   48.690   67.550  90.00 102.30  90.00 C 1 2 1       8          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.013408  0.000000  0.002924        0.00000                         
SCALE2      0.000000  0.020538  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015152        0.00000