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Database: PDB
Entry: 1ID0
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Original site: 1ID0 
HEADER    TRANSFERASE                             02-APR-01   1ID0              
TITLE     CRYSTAL STRUCTURE OF THE NUCLEOTIDE BOND CONFORMATION OF PHOQ KINASE  
TITLE    2 DOMAIN                                                               
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PHOQ HISTIDINE KINASE;                                     
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: KINASE DOMAIN;                                             
COMPND   5 SYNONYM: SENSOR PROTEIN PHOQ;                                        
COMPND   6 EC: 2.7.1.37;                                                        
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 562;                                                 
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   6 EXPRESSION_SYSTEM_VECTOR_TYPE: PAE4D;                                
SOURCE   7 EXPRESSION_SYSTEM_PLASMID: PAED4QKD                                  
KEYWDS    HISTIDINE KINASE, PHOQ/PHOP, SIGNAL TRANSDUCTION, TRANSFERASE         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.MARINA,C.MOTT,A.AUYZENBERG,C.D.WALDBURGER,W.A.HENDRICKSON           
REVDAT   6   07-FEB-24 1ID0    1       REMARK LINK                              
REVDAT   5   01-FEB-17 1ID0    1       AUTHOR VERSN                             
REVDAT   4   24-FEB-09 1ID0    1       VERSN                                    
REVDAT   3   01-APR-03 1ID0    1       JRNL                                     
REVDAT   2   28-DEC-01 1ID0    1       JRNL                                     
REVDAT   1   17-OCT-01 1ID0    0                                                
JRNL        AUTH   A.MARINA,C.MOTT,A.AUYZENBERG,W.A.HENDRICKSON,C.D.WALDBURGER  
JRNL        TITL   STRUCTURAL AND MUTATIONAL ANALYSIS OF THE PHOQ HISTIDINE     
JRNL        TITL 2 KINASE CATALYTIC DOMAIN. INSIGHT INTO THE REACTION           
JRNL        TITL 3 MECHANISM.                                                   
JRNL        REF    J.BIOL.CHEM.                  V. 276 41182 2001              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   11493605                                                     
JRNL        DOI    10.1074/JBC.M106080200                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.0                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 22.50                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 956397.320                     
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 99.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 19159                          
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) : 0.199                           
REMARK   3   FREE R VALUE                     : 0.233                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 7.300                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1400                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.006                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 15                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.60                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.64                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.90                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 1156                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2490                       
REMARK   3   BIN FREE R VALUE                    : 0.2990                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 7.20                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 90                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.031                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1137                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 32                                      
REMARK   3   SOLVENT ATOMS            : 189                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 18.10                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 25.10                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -3.39000                                             
REMARK   3    B22 (A**2) : -1.57000                                             
REMARK   3    B33 (A**2) : 4.96000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.18                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.11                            
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) : 0.22                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.15                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.013                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.800                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 25.30                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 5.200                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.36                                                 
REMARK   3   BSOL        : 46.29                                                
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  : ANP_MUTL.PAR                                   
REMARK   3  PARAMETER FILE  3  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  4  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  5  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : ANP_MUTL.TOP                                   
REMARK   3  TOPOLOGY FILE  3   : WATER_REP.TOP                                  
REMARK   3  TOPOLOGY FILE  4   : ION.TOP                                        
REMARK   3  TOPOLOGY FILE  5   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1ID0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 05-APR-01.                  
REMARK 100 THE DEPOSITION ID IS D_1000013170.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 17-MAR-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X4A                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.979                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 19159                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 22.500                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.6                               
REMARK 200  DATA REDUNDANCY                : 10.40                              
REMARK 200  R MERGE                    (I) : 0.05200                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 32.5000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.64                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 10.40                              
REMARK 200  R MERGE FOR SHELL          (I) : 0.18600                            
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: MAD                          
REMARK 200 SOFTWARE USED: MADSYS, MLPHARE, DM                                   
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 40.99                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.08                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: A CACODYLATE, PEG 1500, MG ACETATE, PH   
REMARK 280  6.5, VAPORDIFFUSION, HANGING DROP, TEMPERATURE 277K, VAPOR          
REMARK 280  DIFFUSION, HANGING DROP                                             
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       21.75150            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       35.88200            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       22.50200            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       35.88200            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       21.75150            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       22.50200            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     SER A   481                                                      
REMARK 465     ALA A   482                                                      
REMARK 465     PRO A   483                                                      
REMARK 465     LYS A   484                                                      
REMARK 465     ASP A   485                                                      
REMARK 465     GLU A   486                                                      
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   NE2  GLN A   376     O    HOH A   189              2.16            
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    GLU A 396      -38.84   -151.16                                   
REMARK 500    THR A 405     -165.43   -118.25                                   
REMARK 500    ARG A 434       56.54    -93.73                                   
REMARK 500    ASP A 436       68.40     26.61                                   
REMARK 500    LEU A 438       68.38    -68.19                                   
REMARK 500    PRO A 440      -11.03    -48.62                                   
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                              MG A 700  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HOH A  84   O                                                      
REMARK 620 2 ASN A 385   OD1  78.9                                              
REMARK 620 3 GLN A 442   OE1  90.7 107.9                                        
REMARK 620 4 ANP A 487   O2G  86.4 153.7  93.9                                  
REMARK 620 5 ANP A 487   O2B 161.4 119.3  79.9  78.3                            
REMARK 620 6 ANP A 487   O2A 109.6  91.4 154.5  73.0  76.1                      
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 MG A 700                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ANP A 487                 
DBREF  1ID0 A  335   486  UNP    P23837   PHOQ_ECOLI     335    486             
SEQRES   1 A  152  ARG GLU LEU HIS PRO VAL ALA PRO LEU LEU ASP ASN LEU          
SEQRES   2 A  152  THR SER ALA LEU ASN LYS VAL TYR GLN ARG LYS GLY VAL          
SEQRES   3 A  152  ASN ILE SER LEU ASP ILE SER PRO GLU ILE SER PHE VAL          
SEQRES   4 A  152  GLY GLU GLN ASN ASP PHE VAL GLU VAL MET GLY ASN VAL          
SEQRES   5 A  152  LEU ASP ASN ALA CYS LYS TYR CYS LEU GLU PHE VAL GLU          
SEQRES   6 A  152  ILE SER ALA ARG GLN THR ASP GLU HIS LEU TYR ILE VAL          
SEQRES   7 A  152  VAL GLU ASP ASP GLY PRO GLY ILE PRO LEU SER LYS ARG          
SEQRES   8 A  152  GLU VAL ILE PHE ASP ARG GLY GLN ARG VAL ASP THR LEU          
SEQRES   9 A  152  ARG PRO GLY GLN GLY VAL GLY LEU ALA VAL ALA ARG GLU          
SEQRES  10 A  152  ILE THR GLU GLN TYR GLU GLY LYS ILE VAL ALA GLY GLU          
SEQRES  11 A  152  SER MET LEU GLY GLY ALA ARG MET GLU VAL ILE PHE GLY          
SEQRES  12 A  152  ARG GLN HIS SER ALA PRO LYS ASP GLU                          
HET     MG  A 700       1                                                       
HET    ANP  A 487      31                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER                      
FORMUL   2   MG    MG 2+                                                        
FORMUL   3  ANP    C10 H17 N6 O12 P3                                            
FORMUL   4  HOH   *189(H2 O)                                                    
HELIX    1   1 VAL A  340  TYR A  355  1                                  16    
HELIX    2   2 GLU A  375  CYS A  394  1                                  20    
HELIX    3   3 PRO A  421  ARG A  425  5                                   5    
HELIX    4   4 GLU A  426  ASP A  430  5                                   5    
HELIX    5   5 GLY A  445  TYR A  456  1                                  12    
SHEET    1   A 2 LEU A 337  PRO A 339  0                                        
SHEET    2   A 2 SER A 371  VAL A 373 -1  O  PHE A 372   N  HIS A 338           
SHEET    1   B 5 ASN A 361  ASP A 365  0                                        
SHEET    2   B 5 PHE A 397  GLN A 404  1  N  VAL A 398   O  ASN A 361           
SHEET    3   B 5 LEU A 409  ASP A 415 -1  N  TYR A 410   O  ARG A 403           
SHEET    4   B 5 ALA A 470  PHE A 476 -1  O  ALA A 470   N  ASP A 415           
SHEET    5   B 5 LYS A 459  GLU A 464 -1  O  LYS A 459   N  ILE A 475           
LINK         O   HOH A  84                MG    MG A 700     1555   1555  2.28  
LINK         OD1 ASN A 385                MG    MG A 700     1555   1555  2.31  
LINK         OE1 GLN A 442                MG    MG A 700     1555   1555  2.49  
LINK         O2G ANP A 487                MG    MG A 700     1555   1555  2.51  
LINK         O2B ANP A 487                MG    MG A 700     1555   1555  2.43  
LINK         O2A ANP A 487                MG    MG A 700     1555   1555  2.76  
SITE     1 AC1  4 HOH A  84  ASN A 385  GLN A 442  ANP A 487                    
SITE     1 AC2 20 HOH A   5  HOH A  16  HOH A  67  HOH A 126                    
SITE     2 AC2 20 HOH A 184  ASN A 385  ASN A 389  LYS A 392                    
SITE     3 AC2 20 TYR A 393  ASP A 415  GLY A 419  ILE A 420                    
SITE     4 AC2 20 ILE A 428  ARG A 434  ARG A 439  GLN A 442                    
SITE     5 AC2 20 GLY A 445  LEU A 446  ALA A 470   MG A 700                    
CRYST1   43.503   45.004   71.764  90.00  90.00  90.00 P 21 21 21    4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.022987  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.022220  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013935        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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