HEADER    HYDROLASE                               19-AUG-02   1MH8              
TITLE     CRYSTAL STRUCTURE OF A PHOPHOLIPASE A2 MONOMER WITH ISOLEUCINE AT     
TITLE    2 SECOND POSITION                                                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PHOSPHOLIPASE A2;                                          
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 3.1.1.4                                                          
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: NAJA SAGITTIFERA;                               
SOURCE   3 ORGANISM_TAXID: 195058;                                              
SOURCE   4 SECRETION: VENOM                                                     
KEYWDS    PHOSPHOLIPASE, ENZYME, PHOSPHOLIPIDS, HYDROLASE                       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    T.JABEEN,J.JASTI,N.SINGH,R.K.SINGH,S.SHARMA,T.P.SINGH                 
REVDAT   3   30-OCT-24 1MH8    1       REMARK                                   
REVDAT   2   24-FEB-09 1MH8    1       VERSN                                    
REVDAT   1   10-JUN-03 1MH8    0                                                
JRNL        AUTH   T.JABEEN,J.JASTI,N.SINGH,R.K.SINGH,S.SHARMA,T.P.SINGH        
JRNL        TITL   CRYSTAL STRUCTURE OF A PHOSPHOLIPASE A2 MONOMER WITH         
JRNL        TITL 2 ISOLEUCINE AT SECOND POSITION                                
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.86 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 0.9                                              
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) : 1.86                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
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)   (%) : 94.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 9477                           
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) : 0.197                           
REMARK   3   FREE R VALUE                     : 0.228                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.300                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 506                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.010                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.86                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.98                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 82.50                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 1283                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2470                       
REMARK   3   BIN FREE R VALUE                    : 0.3170                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 5.40                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 73                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.037                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 923                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 84                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 23.90                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 26.20                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.19                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.16                            
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) : 0.24                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.24                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.005                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.100                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 22.20                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.720                           
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) : 1.430 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.220 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.510 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 3.790 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.27                                                 
REMARK   3   BSOL        : 52.75                                                
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  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  3  : WATER_REP.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: NULL                                      
REMARK   4                                                                      
REMARK   4 1MH8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 29-AUG-02.                  
REMARK 100 THE DEPOSITION ID IS D_1000016910.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 20-JUN-02                          
REMARK 200  TEMPERATURE           (KELVIN) : 298                                
REMARK 200  PH                             : 6.5                                
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                  : YALE MIRRORS                       
REMARK 200  OPTICS                         : MIRRORS                            
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   : 9835                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.860                              
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     (%) : 98.0                               
REMARK 200  DATA REDUNDANCY                : 5.500                              
REMARK 200  R MERGE                    (I) : 0.06800                            
REMARK 200  R SYM                      (I) : 0.07300                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 13.0000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.86                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.93                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 85.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.30000                            
REMARK 200  R SYM FOR SHELL            (I) : 0.31000                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.200                              
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: 1LFJ                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 45.88                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.27                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 10 MM SODIUM PHOSPHATE, 2MM CACL2, 25%   
REMARK 280  ETHANOL, PH 6.5, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K    
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       32.99700            
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       16.49850            
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       49.49550            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 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       75.83   -153.89                                   
REMARK 500    ASP A  39     -168.84   -163.82                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1LFJ   RELATED DB: PDB                                   
REMARK 900 1LFJ IS THE X-RAY CRYSTAL STRUCTURE OF A COMPLEX FORMED BETWEEN TWO  
REMARK 900 HOMOLOGOUS ISOFORMS OF PHOSPHOLIPASE A2 FROM NAJA NAJA SAGITTIFERA:  
REMARK 900 PRINCIPLE OF MOLECULAR ASSOCIATION AND INACTIVATION                  
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 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 RESOLUTION                         
REMARK 900 RELATED ID: 1MF4   RELATED DB: PDB                                   
REMARK 900 1MF4 IS THE STRUCTURE-BASED DESIGN OF POTENT AND SELECTIVE           
REMARK 900 INHIBITORS OF PHOSPHOLIPASE A2: CRYSTAL STRUCTURE OF THE COMPLEX     
REMARK 900 FORMED BETWEEN PHOSPHOLIPASE A2 FROM NAJA NAJA SAGITTIFERA AND A     
REMARK 900 DESIGNED PEPTIDE INHIBITOR AT 1.9 RESOLUTION                         
DBREF  1MH8 A    1   120  UNP    P60043   PA21B_NAJSG      8    126             
SEQRES   1 A  119  ASN ILE TYR GLN PHE LYS ASN MET ILE GLU CYS THR VAL          
SEQRES   2 A  119  PRO ALA ARG SER TRP TRP ASP PHE ALA ASP TYR GLY CYS          
SEQRES   3 A  119  TYR CYS GLY GLY GLY GLY SER GLY THR PRO THR ASP ASP          
SEQRES   4 A  119  LEU ASP ARG CYS CYS GLN VAL HIS ASP ASN CYS TYR ASN          
SEQRES   5 A  119  GLN ALA GLN GLU ILE THR GLY CYS ARG PRO LYS TRP LYS          
SEQRES   6 A  119  THR TYR THR TYR GLN CYS THR GLN GLY THR LEU THR CYS          
SEQRES   7 A  119  LYS GLY ARG ASN ASN ALA CYS ALA ALA THR THR 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 THR ASN TYR ASN ILE ASP LEU LYS ALA ARG          
SEQRES  10 A  119  CYS GLN                                                      
FORMUL   2  HOH   *84(H2 O)                                                     
HELIX    1   1 ASN A    1  VAL A   13  1                                  13    
HELIX    2   2 SER A   18  PHE A   22  5                                   5    
HELIX    3   3 ASP A   39  GLN A   56  1                                  18    
HELIX    4   4 ASN A   84  ALA A  104  1                                  21    
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 ASP A  24  TYR A  25  0                                        
SHEET    2   A 2 CYS A  29  GLY A  30 -1  O  CYS A  29   N  TYR A  25           
SHEET    1   B 2 TYR A  70  THR A  73  0                                        
SHEET    2   B 2 THR A  76  CYS A  79 -1  O  THR A  78   N  GLN A  71           
SSBOND   1 CYS A   11    CYS A   72                          1555   1555  2.02  
SSBOND   2 CYS A   27    CYS A  119                          1555   1555  2.03  
SSBOND   3 CYS A   29    CYS A   45                          1555   1555  2.03  
SSBOND   4 CYS A   44    CYS A  100                          1555   1555  2.03  
SSBOND   5 CYS A   51    CYS A   93                          1555   1555  2.03  
SSBOND   6 CYS A   61    CYS A   86                          1555   1555  2.03  
SSBOND   7 CYS A   79    CYS A   91                          1555   1555  2.03  
CRYST1   42.817   42.817   65.994  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      0.023355  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.023355  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015153        0.00000