HEADER    HYDROLASE/HYDROLASE INHIBITOR           09-AUG-02   1MF4              
TITLE     STRUCTURE-BASED DESIGN OF POTENT AND SELECTIVE INHIBITORS OF          
TITLE    2 PHOSPHOLIPASE A2: CRYSTAL STRUCTURE OF THE COMPLEX FORMED BETWEEN    
TITLE    3 PHOSHOLIPASE A2 FROM NAJA NAJA SAGITTIFERA AND A DESIGNED PEPTIDE    
TITLE    4 INHIBITOR AT 1.9 A RESOLUTION                                        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PHOSPHOLIPASE A2;                                          
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 3.1.1.4;                                                         
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: VAL-ALA-PHE-ARG-SER;                                       
COMPND   7 CHAIN: B;                                                            
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: NAJA SAGITTIFERA;                               
SOURCE   3 ORGANISM_TAXID: 195058;                                              
SOURCE   4 SECRETION: VENOM;                                                    
SOURCE   5 MOL_ID: 2;                                                           
SOURCE   6 SYNTHETIC: YES;                                                      
SOURCE   7 OTHER_DETAILS: THIS PEPTIDE WAS CHEMICALLY SYNTHESIZED.              
KEYWDS    NAJA NAJA SAGITTIFERA, PHOSPHOLIPASE A2, DESIGNED INHIBITOR,          
KEYWDS   2 HYDROLASE-HYDROLASE INHIBITOR COMPLEX                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    R.K.SINGH,P.VIKRAM,M.PARAMSIVAM,T.JABEEN,S.SHARMA,J.MAKKER,S.DEY,     
AUTHOR   2 P.KAUR,A.SRINIVASAN,T.P.SINGH                                        
REVDAT   6   13-NOV-24 1MF4    1       REMARK LINK                              
REVDAT   5   13-JUL-11 1MF4    1       VERSN                                    
REVDAT   4   24-FEB-09 1MF4    1       VERSN                                    
REVDAT   3   30-JAN-07 1MF4    2       AUTHOR                                   
REVDAT   2   23-DEC-03 1MF4    1       JRNL                                     
REVDAT   1   30-SEP-03 1MF4    0                                                
JRNL        AUTH   R.K.SINGH,P.VIKRAM,J.MAKKER,T.JABEEN,S.SHARMA,S.DEY,P.KAUR,  
JRNL        AUTH 2 A.SRINIVASAN,T.P.SINGH                                       
JRNL        TITL   DESIGN OF SPECIFIC PEPTIDE INHIBITORS FOR GROUP I            
JRNL        TITL 2 PHOSPHOLIPASE A2: STRUCTURE OF A COMPLEX FORMED BETWEEN      
JRNL        TITL 3 PHOSPHOLIPASE A2 FROM NAJA NAJA SAGITTIFERA (GROUP I) AND A  
JRNL        TITL 4 DESIGNED PEPTIDE INHIBITOR VAL-ALA-PHE-ARG-SER (VAFRS) AT    
JRNL        TITL 5 1.9 A RESOLUTION REVEALS UNIQUE FEATURES                     
JRNL        REF    BIOCHEMISTRY                  V.  42 11701 2003              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   14529280                                                     
JRNL        DOI    10.1021/BI035076X                                            
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   R.K.SINGH,S.SHARMA,T.JABEEN,P.KAUR,T.P.SINGH                 
REMARK   1  TITL   CRYSTAL STRUCTURE OF AN ACIDIC PHOSPHOLIPASE A2 FROM NAJA    
REMARK   1  TITL 2 NAJA SAGITTIFERA AT 1.5 A RESOLUTION                         
REMARK   1  REF    TO BE PUBLISHED                                              
REMARK   1  REFN                                                                
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   R.K.SINGH,P.VIKRAM,M.PARAMASIVAM,T.JABEEN,S.SHARMA,P.KAUR,   
REMARK   1  AUTH 2 A.SRINIVASAN,T.P.SINGH                                       
REMARK   1  TITL   CRYSTAL STRUCTURE OF A NEW ISOFORM OF PHOSPHOLIPASE A2 FROM  
REMARK   1  TITL 2 NAJA NAJA SAGITTIFERA AT 1.6 A RESOLUTION                    
REMARK   1  REF    TO BE PUBLISHED                                              
REMARK   1  REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.90 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.0                                           
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 19.54                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 8247                           
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 + TEST SET) : 0.184                           
REMARK   3   R VALUE            (WORKING SET) : 0.182                           
REMARK   3   FREE R VALUE                     : 0.239                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.700                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 411                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.90                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.95                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 314                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2680                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 18                           
REMARK   3   BIN FREE R VALUE                    : 0.2700                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 950                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 1                                       
REMARK   3   SOLVENT ATOMS            : 105                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 20.63                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 25.50                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.24000                                             
REMARK   3    B22 (A**2) : -0.24000                                             
REMARK   3    B33 (A**2) : 0.49000                                              
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 OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.180         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.165         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.111         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.811         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.952                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.927                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):   975 ; 0.011 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  1322 ; 1.748 ; 1.937       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   121 ; 3.468 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   151 ;17.004 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   151 ;17.004 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   135 ; 0.109 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   773 ; 0.006 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   456 ; 0.292 ; 0.300       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):    82 ; 0.167 ; 0.500       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    52 ; 0.449 ; 0.300       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    20 ; 0.689 ; 0.500       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):   613 ; 0.880 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):   971 ; 1.769 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   362 ; 2.472 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   351 ; 3.903 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 1MF4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-AUG-02.                  
REMARK 100 THE DEPOSITION ID IS D_1000016865.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 10-JUN-01                          
REMARK 200  TEMPERATURE           (KELVIN) : 290.0                              
REMARK 200  PH                             : 6.00                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU RU200                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : GRAPHITE CRYSTAL                   
REMARK 200  OPTICS                         : MONOCHROMATOR                      
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 8247                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.900                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 93.2                               
REMARK 200  DATA REDUNDANCY                : 1.040                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.07300                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 19.3000                            
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) : 1.97                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 61.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.28900                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.900                              
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: 1LN8                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 45.10                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.26                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM PHOSPHATE, CACL2, ETHANOL; CO     
REMARK 280  -CRYSTALLATION OF PROTEIN: PEPTIDE IN 1:10 MOLAR RATIO, PH 6.0,     
REMARK 280  VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 295K, PH 6.00            
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41                             
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -Y,X,Z+1/4                                              
REMARK 290       4555   Y,-X,Z+3/4                                              
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       32.93300            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       16.46650            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       49.39950            
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: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 1030 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 6720 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -16.0 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 ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    LYS A   6   CG  -  CD  -  CE  ANGL. DEV. =  30.9 DEGREES          
REMARK 500    ASP A  94   CB  -  CG  -  OD2 ANGL. DEV. =   6.6 DEGREES          
REMARK 500    PHE B   3   CB  -  CA  -  C   ANGL. DEV. = -16.8 DEGREES          
REMARK 500    PHE B   3   CB  -  CG  -  CD2 ANGL. DEV. =  -4.3 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    ASP A  24       77.44   -156.11                                   
REMARK 500    LYS A  31      -84.13   -116.05                                   
REMARK 500    ASP A  82       37.16    -90.91                                   
REMARK 500    ALA B   2      -64.40   -127.32                                   
REMARK 500    PHE B   3     -168.19   -167.45                                   
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 201  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 TYR A  28   O                                                      
REMARK 620 2 LYS A  31   O   112.3                                              
REMARK 620 3 GLY A  32   O    73.8  56.7                                        
REMARK 620 4 ASP A  49   OD2  64.4 140.7  87.0                                  
REMARK 620 5 ASP A  49   OD1  76.2 170.9 131.2  45.1                            
REMARK 620 6 HOH A 244   O   156.7  54.2  83.1 112.3 119.0                      
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 201                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR CHAIN B OF VAL-ALA-PHE-ARG-SER    
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1LFF   RELATED DB: PDB                                   
REMARK 900 1LFF IS THE CRYSTAL STRUCTURE OF AN ACIDIC PHOSPHOLIPASE A2 FROM     
REMARK 900 NAJA NAJA SAGITTIFERA AT 1.5 A RESOLUTION                            
REMARK 900 RELATED ID: 1LN8   RELATED DB: PDB                                   
REMARK 900 1LN8 IS THE CRYSTAL STRUCTURE OF A NEW ISOFORM OF PHOSPHOLIPASE A2   
REMARK 900 FROM NAJA NAJA SAGITTIFERA AT 1.6 A RESOLUTION                       
DBREF  1MF4 A    1   120  UNP    P60045   PA23_NAJSG       8    126             
DBREF  1MF4 B    1     5  PDB    1MF4     1MF4             1      5             
SEQRES   1 A  119  ASN LEU TYR GLN PHE LYS ASN MET ILE GLN CYS THR VAL          
SEQRES   2 A  119  PRO SER ARG SER TRP ALA ASP PHE ALA ASP TYR GLY CYS          
SEQRES   3 A  119  TYR CYS GLY LYS GLY GLY SER GLY THR PRO VAL ASP ASP          
SEQRES   4 A  119  LEU ASP ARG CYS CYS GLN THR HIS ASP ASN CYS TYR ASN          
SEQRES   5 A  119  GLU ALA GLU ASN ILE SER GLY CYS ARG PRO TYR PHE LYS          
SEQRES   6 A  119  THR TYR SER TYR GLU CYS THR GLN GLY THR LEU THR CYS          
SEQRES   7 A  119  LYS GLY ASP ASN ASN ALA CYS ALA ALA SER VAL CYS ASP          
SEQRES   8 A  119  CYS ASP ARG LEU ALA ALA ILE CYS PHE ALA GLY ALA PRO          
SEQRES   9 A  119  TYR ASN ASP ALA ASN TYR ASN ILE ASP LEU LYS ALA ARG          
SEQRES  10 A  119  CYS ASN                                                      
SEQRES   1 B    5  VAL ALA PHE ARG SER                                          
HET     CA  A 201       1                                                       
HETNAM      CA CALCIUM ION                                                      
FORMUL   3   CA    CA 2+                                                        
FORMUL   4  HOH   *105(H2 O)                                                    
HELIX    1   1 ASN A    1  VAL A   13  1                                  13    
HELIX    2   2 SER A   18  ALA A   23  5                                   6    
HELIX    3   3 ASP A   39  GLU A   56  1                                  18    
HELIX    4   4 ASN A   84  GLY A  103  1                                  20    
HELIX    5   5 ASN A  107  TYR A  111  5                                   5    
HELIX    6   6 ASP A  114  CYS A  119  1                                   6    
SHEET    1   A 2 TYR A  70  THR A  73  0                                        
SHEET    2   A 2 THR A  76  CYS A  79 -1  O  THR A  78   N  GLU A  71           
SSBOND   1 CYS A   11    CYS A   72                          1555   1555  2.06  
SSBOND   2 CYS A   27    CYS A  119                          1555   1555  2.02  
SSBOND   3 CYS A   29    CYS A   45                          1555   1555  2.05  
SSBOND   4 CYS A   44    CYS A  100                          1555   1555  2.01  
SSBOND   5 CYS A   51    CYS A   93                          1555   1555  2.02  
SSBOND   6 CYS A   61    CYS A   86                          1555   1555  2.01  
SSBOND   7 CYS A   79    CYS A   91                          1555   1555  2.02  
LINK         O   TYR A  28                CA    CA A 201     1555   1555  2.76  
LINK         O   LYS A  31                CA    CA A 201     1555   1555  2.56  
LINK         O   GLY A  32                CA    CA A 201     1555   1555  2.44  
LINK         OD2 ASP A  49                CA    CA A 201     1555   1555  2.52  
LINK         OD1 ASP A  49                CA    CA A 201     1555   1555  3.00  
LINK        CA    CA A 201                 O   HOH A 244     1555   1555  2.58  
SITE     1 AC1  6 TYR A  28  LYS A  31  GLY A  32  ASP A  49                    
SITE     2 AC1  6 HOH A 244  ARG B   4                                          
SITE     1 AC2 20 PHE A   5  LYS A   6  ILE A   9  TRP A  19                    
SITE     2 AC2 20 PHE A  22  ALA A  23  TYR A  28  GLY A  30                    
SITE     3 AC2 20 LYS A  31  ASP A  40  ARG A  43  CYS A  44                    
SITE     4 AC2 20 CYS A  45  THR A  47  HIS A  48  ASP A  49                    
SITE     5 AC2 20 TYR A  64  CYS A 100   CA A 201  HOH B  88                    
CRYST1   42.779   42.779   65.866  90.00  90.00  90.00 P 41          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      0.023376  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.023376  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015182        0.00000