HEADER    TRANSFERASE                             16-MAY-01   1J7J              
TITLE     CRYSTAL STRUCTURE OF THE HPRT FROM SALMONELLA TYPHIMURIUM             
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HYPOXANTHINE PHOSPHORIBOSYLTRANSFERASE;                    
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: HPRT;                                                       
COMPND   5 EC: 2.4.2.8;                                                         
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SALMONELLA TYPHIMURIUM;                         
SOURCE   3 ORGANISM_TAXID: 602;                                                 
SOURCE   4 GENE: HPT;                                                           
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: S(PHI)606;                                 
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PBACE                                     
KEYWDS    TRANSFERASE, GLYCOSYLTRANSFERASE, PHOSPHORIBOSYLTRANSFERASE,          
KEYWDS   2 NUCLEOTIDE METABOLISM, PURINE SALVAGE                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.C.LEE,P.J.FOCIA,G.SPRAGGON,A.E.EAKIN                                
REVDAT   4   16-AUG-23 1J7J    1       REMARK LINK                              
REVDAT   3   13-JUL-11 1J7J    1       VERSN                                    
REVDAT   2   24-FEB-09 1J7J    1       VERSN                                    
REVDAT   1   29-JUL-03 1J7J    0                                                
JRNL        AUTH   C.C.LEE,P.J.FOCIA,G.SPRAGGON,A.E.EAKIN                       
JRNL        TITL   CRYSTAL STRUCTURE OF THE HPRT FROM SALMONELLA TYPHIMURIUM AT 
JRNL        TITL 2 2.3 A RESOLUTION                                             
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.30 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 : NULL                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 500.00                         
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 28905                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.210                           
REMARK   3   FREE R VALUE                     : 0.237                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
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) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2598                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 2                                       
REMARK   3   SOLVENT ATOMS            : 132                                     
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) : 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) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.012                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.792                           
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 1J7J COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-MAY-01.                  
REMARK 100 THE DEPOSITION ID IS D_1000013457.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 14-NOV-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 5ID-B                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.0                                
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MAR 165 MM CCD                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 31306                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.300                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 40.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.8                               
REMARK 200  DATA REDUNDANCY                : 10.80                              
REMARK 200  R MERGE                    (I) : 0.05000                            
REMARK 200  R SYM                      (I) : 0.05000                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 46.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.35                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 11.00                              
REMARK 200  R MERGE FOR SHELL          (I) : 0.30100                            
REMARK 200  R SYM FOR SHELL            (I) : 0.30100                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 7.700                              
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: 1TC1 WITHOUT LIGANDS AND WATERS                      
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 71.16                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.26                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 28% PEG 400, 200MM CACL2, 100MM HEPES    
REMARK 280  PH 7.5                                                              
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+2/3                                           
REMARK 290       6555   -X,-X+Y,-Z+1/3                                          
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       56.25067            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000      112.50133            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000      112.50133            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       56.25067            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2, 3                                                 
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PQS                                                   
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PQS                                                   
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 350                                                                      
REMARK 350 BIOMOLECULE: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 8000 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 26270 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -68.0 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 350   BIOMT1   2  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000      112.50133            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 603  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH B 602  LIES ON A SPECIAL POSITION.                          
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     MET A     1                                                      
REMARK 465     LYS A     2                                                      
REMARK 465     SER A    69                                                      
REMARK 465     TYR A    70                                                      
REMARK 465     GLY A    71                                                      
REMARK 465     SER A    72                                                      
REMARK 465     GLY A    73                                                      
REMARK 465     MET A    74                                                      
REMARK 465     SER A    75                                                      
REMARK 465     THR A    76                                                      
REMARK 465     THR A    77                                                      
REMARK 465     LEU A   175                                                      
REMARK 465     LEU A   176                                                      
REMARK 465     ASP A   177                                                      
REMARK 465     GLU A   178                                                      
REMARK 465     MET B     1                                                      
REMARK 465     LYS B     2                                                      
REMARK 465     SER B    69                                                      
REMARK 465     TYR B    70                                                      
REMARK 465     GLY B    71                                                      
REMARK 465     SER B    72                                                      
REMARK 465     GLY B    73                                                      
REMARK 465     MET B    74                                                      
REMARK 465     SER B    75                                                      
REMARK 465     THR B    76                                                      
REMARK 465     THR B    77                                                      
REMARK 465     LEU B   176                                                      
REMARK 465     ASP B   177                                                      
REMARK 465     GLU B   178                                                      
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    HOH B   626     O    HOH B   656              1.91            
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    ARG A  43   NE  -  CZ  -  NH1 ANGL. DEV. =   3.3 DEGREES          
REMARK 500    ARG B  43   CG  -  CD  -  NE  ANGL. DEV. =  14.1 DEGREES          
REMARK 500    ARG B  43   CD  -  NE  -  CZ  ANGL. DEV. =  27.9 DEGREES          
REMARK 500    ARG B  43   NE  -  CZ  -  NH1 ANGL. DEV. =  -5.8 DEGREES          
REMARK 500    ARG B  43   NE  -  CZ  -  NH2 ANGL. DEV. =   8.7 DEGREES          
REMARK 500    GLY B  44   N   -  CA  -  C   ANGL. DEV. =  15.5 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    GLN A  57       40.44    -80.98                                   
REMARK 500    ASP A 103      -81.29   -131.21                                   
REMARK 500    ALA A 161       52.66     71.96                                   
REMARK 500    TYR A 164      -11.42     74.57                                   
REMARK 500    LYS B  30      -33.36    -36.54                                   
REMARK 500    GLN B  57       47.56    -86.70                                   
REMARK 500    ASP B 103      -84.39   -124.00                                   
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 600  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A  99   OE1                                                    
REMARK 620 2 GLU A  99   OE2  46.5                                              
REMARK 620 3 ASP A 100   OD1  59.8 103.8                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 601  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU B  99   OE1                                                    
REMARK 620 2 ASP B 100   OD1  61.1                                              
REMARK 620 N                    1                                               
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 600                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 601                  
DBREF  1J7J A    1   178  UNP    O33799   HPRT_SALTY       1    178             
DBREF  1J7J B    1   178  UNP    O33799   HPRT_SALTY       1    178             
SEQRES   1 A  178  MET LYS HIS THR VAL GLU VAL MET ILE PRO GLU ALA GLU          
SEQRES   2 A  178  ILE LYS ALA ARG ILE ALA GLU LEU GLY ARG GLN ILE THR          
SEQRES   3 A  178  GLU ARG TYR LYS ASP SER GLY SER GLU MET VAL LEU VAL          
SEQRES   4 A  178  GLY LEU LEU ARG GLY SER PHE MET PHE MET ALA ASP LEU          
SEQRES   5 A  178  CYS ARG GLU VAL GLN VAL PRO HIS GLU VAL ASP PHE MET          
SEQRES   6 A  178  THR ALA SER SER TYR GLY SER GLY MET SER THR THR ARG          
SEQRES   7 A  178  ASP VAL LYS ILE LEU LYS ASP LEU ASP GLU ASP ILE ARG          
SEQRES   8 A  178  GLY LYS ASP VAL LEU ILE VAL GLU ASP ILE ILE ASP SER          
SEQRES   9 A  178  GLY ASN THR LEU SER LYS VAL ARG GLU ILE LEU GLY LEU          
SEQRES  10 A  178  ARG GLU PRO LYS SER LEU ALA ILE CYS THR LEU LEU ASP          
SEQRES  11 A  178  LYS PRO SER ARG ARG GLU VAL ASP VAL PRO VAL GLU PHE          
SEQRES  12 A  178  VAL GLY PHE SER ILE PRO ASP GLU PHE VAL VAL GLY TYR          
SEQRES  13 A  178  GLY ILE ASP TYR ALA GLN ARG TYR ARG HIS LEU PRO TYR          
SEQRES  14 A  178  VAL GLY LYS VAL VAL LEU LEU ASP GLU                          
SEQRES   1 B  178  MET LYS HIS THR VAL GLU VAL MET ILE PRO GLU ALA GLU          
SEQRES   2 B  178  ILE LYS ALA ARG ILE ALA GLU LEU GLY ARG GLN ILE THR          
SEQRES   3 B  178  GLU ARG TYR LYS ASP SER GLY SER GLU MET VAL LEU VAL          
SEQRES   4 B  178  GLY LEU LEU ARG GLY SER PHE MET PHE MET ALA ASP LEU          
SEQRES   5 B  178  CYS ARG GLU VAL GLN VAL PRO HIS GLU VAL ASP PHE MET          
SEQRES   6 B  178  THR ALA SER SER TYR GLY SER GLY MET SER THR THR ARG          
SEQRES   7 B  178  ASP VAL LYS ILE LEU LYS ASP LEU ASP GLU ASP ILE ARG          
SEQRES   8 B  178  GLY LYS ASP VAL LEU ILE VAL GLU ASP ILE ILE ASP SER          
SEQRES   9 B  178  GLY ASN THR LEU SER LYS VAL ARG GLU ILE LEU GLY LEU          
SEQRES  10 B  178  ARG GLU PRO LYS SER LEU ALA ILE CYS THR LEU LEU ASP          
SEQRES  11 B  178  LYS PRO SER ARG ARG GLU VAL ASP VAL PRO VAL GLU PHE          
SEQRES  12 B  178  VAL GLY PHE SER ILE PRO ASP GLU PHE VAL VAL GLY TYR          
SEQRES  13 B  178  GLY ILE ASP TYR ALA GLN ARG TYR ARG HIS LEU PRO TYR          
SEQRES  14 B  178  VAL GLY LYS VAL VAL LEU LEU ASP GLU                          
HET     MG  A 600       1                                                       
HET     MG  B 601       1                                                       
HETNAM      MG MAGNESIUM ION                                                    
FORMUL   3   MG    2(MG 2+)                                                     
FORMUL   5  HOH   *132(H2 O)                                                    
HELIX    1   1 PRO A   10  ASP A   31  1                                  22    
HELIX    2   2 SER A   45  ARG A   54  1                                  10    
HELIX    3   3 GLY A  105  LEU A  117  1                                  13    
HELIX    4   4 PRO A  132  ARG A  135  5                                   4    
HELIX    5   5 PRO B   10  LYS B   30  1                                  21    
HELIX    6   6 SER B   45  VAL B   56  1                                  12    
HELIX    7   7 GLY B  105  LEU B  117  1                                  13    
HELIX    8   8 PRO B  132  ARG B  135  5                                   4    
SHEET    1   A 3 THR A   4  ILE A   9  0                                        
SHEET    2   A 3 VAL A 170  VAL A 174 -1  O  VAL A 174   N  THR A   4           
SHEET    3   A 3 VAL A 153  VAL A 154 -1  N  VAL A 154   O  GLY A 171           
SHEET    1   B 5 GLU A  61  MET A  65  0                                        
SHEET    2   B 5 MET A  36  LEU A  41  1  N  LEU A  38   O  ASP A  63           
SHEET    3   B 5 ASP A  94  ILE A 102  1  O  VAL A  98   N  VAL A  39           
SHEET    4   B 5 SER A 122  ASP A 130  1  O  ALA A 124   N  ILE A  97           
SHEET    5   B 5 PHE A 143  SER A 147  1  O  PHE A 143   N  THR A 127           
SHEET    1   C 3 THR B   4  ILE B   9  0                                        
SHEET    2   C 3 VAL B 170  VAL B 174 -1  O  VAL B 174   N  THR B   4           
SHEET    3   C 3 VAL B 153  VAL B 154 -1  N  VAL B 154   O  GLY B 171           
SHEET    1   D 5 GLU B  61  THR B  66  0                                        
SHEET    2   D 5 MET B  36  LEU B  42  1  N  LEU B  42   O  MET B  65           
SHEET    3   D 5 ASP B  94  ILE B 102  1  O  VAL B  98   N  VAL B  39           
SHEET    4   D 5 SER B 122  ASP B 130  1  O  ALA B 124   N  ILE B  97           
SHEET    5   D 5 PHE B 143  SER B 147  1  O  PHE B 143   N  THR B 127           
LINK         OE1 GLU A  99                MG    MG A 600     1555   1555  2.32  
LINK         OE2 GLU A  99                MG    MG A 600     1555   1555  2.99  
LINK         OD1 ASP A 100                MG    MG A 600     1555   1555  2.62  
LINK         OE1 GLU B  99                MG    MG B 601     1555   1555  2.53  
LINK         OD1 ASP B 100                MG    MG B 601     1555   1555  2.43  
CISPEP   1 LEU A   42    ARG A   43          0        -0.76                     
CISPEP   2 LEU B   42    ARG B   43          0         2.69                     
SITE     1 AC1  2 GLU A  99  ASP A 100                                          
SITE     1 AC2  2 GLU B  99  ASP B 100                                          
CRYST1   83.897   83.897  168.752  90.00  90.00 120.00 P 31 2 1     12          
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      0.011919  0.006882  0.000000        0.00000                         
SCALE2      0.000000  0.013763  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005926        0.00000