HEADER    TRANSFERASE                             17-JUN-11   3ZRP              
TITLE     CRYSTAL STRUCTURE AND SUBSTRATE SPECIFICITY OF A THERMOPHILIC ARCHAEAL
TITLE    2 SERINE : PYRUVATE AMINOTRANSFERASE FROM SULFOLOBUS SOLFATARICUS      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: SERINE-PYRUVATE AMINOTRANSFERASE (AGXT);                   
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 EC: 2.6.1.51;                                                        
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SULFOLOBUS SOLFATARICUS;                        
SOURCE   3 ORGANISM_TAXID: 273057;                                              
SOURCE   4 STRAIN: P2;                                                          
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_VARIANT: ROSETTA2;                                 
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_VECTOR: PET21A                                     
KEYWDS    TRANSFERASE                                                           
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.SAYER,M.BOMMER,M.N.ISUPOV,J.WARD,J.LITTLECHILD                      
REVDAT   3   20-DEC-23 3ZRP    1       REMARK LINK                              
REVDAT   2   11-JUL-12 3ZRP    1       JRNL                                     
REVDAT   1   27-JUN-12 3ZRP    0                                                
JRNL        AUTH   C.SAYER,M.BOMMER,M.N.ISUPOV,J.WARD,J.LITTLECHILD             
JRNL        TITL   CRYSTAL STRUCTURE AND SUBSTRATE SPECIFICITY OF THE           
JRNL        TITL 2 THERMOPHILIC SERINE:PYRUVATE AMINOTRANSFERASE FROM           
JRNL        TITL 3 SULFOLOBUS SOLFATARICUS                                      
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  68   763 2012              
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   22751661                                                     
JRNL        DOI    10.1107/S0907444912011274                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.75 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.6.0062                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.75                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 94.87                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 93.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 76065                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.218                           
REMARK   3   R VALUE            (WORKING SET) : 0.216                           
REMARK   3   FREE R VALUE                     : 0.260                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 4029                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.75                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.79                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 4103                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 68.80                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.4600                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 208                          
REMARK   3   BIN FREE R VALUE                    : 0.4680                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 5808                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 30                                      
REMARK   3   SOLVENT ATOMS            : 596                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 39.70                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 39.37                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -2.07000                                             
REMARK   3    B22 (A**2) : 3.50000                                              
REMARK   3    B33 (A**2) : -2.10000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : -0.92000                                             
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.148         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.142         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.126         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 4.221         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.960                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.939                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  6548 ; 0.012 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  9017 ; 1.291 ; 1.988       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   922 ; 5.075 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   279 ;35.054 ;24.194       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  1228 ;16.424 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    46 ;17.655 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):  1040 ; 0.085 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  4960 ; 0.006 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS.                                                          
REMARK   4                                                                      
REMARK   4 3ZRP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 17-JUN-11.                  
REMARK 100 THE DEPOSITION ID IS D_1290048726.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7                                  
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SRS                                
REMARK 200  BEAMLINE                       : PX14.1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.488                              
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 : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 76065                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.750                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 24.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.600                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 95.0                               
REMARK 200  DATA REDUNDANCY                : 2.700                              
REMARK 200  R MERGE                    (I) : 0.05000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 8.7000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.75                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.84                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 76.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.39000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.600                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: BALBES                                                
REMARK 200 STARTING MODEL: PDB ENTRY 2BKW                                       
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 47.76                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.35                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 5 MG/ML PROTEIN, 50 MM TRIS HCL PH 8.5   
REMARK 280  AND 15% POLYETHYLENE GLYCOL (PEG) 400., PH 7                        
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   X+1/2,Y+1/2,Z                                           
REMARK 290       4555   -X+1/2,Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       81.21500            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       27.48500            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       81.21500            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       27.48500            
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: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 4760 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 26210 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -15.7 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 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     ASP A     2                                                      
REMARK 465     LYS A     3                                                      
REMARK 465     LEU A     4                                                      
REMARK 465     LEU A     5                                                      
REMARK 465     ALA A   383                                                      
REMARK 465     ARG A   384                                                      
REMARK 465     MET B     1                                                      
REMARK 465     ASP B     2                                                      
REMARK 465     LYS B     3                                                      
REMARK 465     LEU B     4                                                      
REMARK 465     LEU B     5                                                      
REMARK 465     ALA B   383                                                      
REMARK 465     ARG B   384                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A  2285     O    HOH A  2330     4445     2.10            
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    PRO A  10      127.89    -37.32                                   
REMARK 500    ALA A 170      -39.48   -139.53                                   
REMARK 500    LYS A 189     -111.64   -102.59                                   
REMARK 500    TYR A 219      -66.02    -97.08                                   
REMARK 500    TYR A 297      108.04    -57.49                                   
REMARK 500    VAL A 308      -56.02   -125.34                                   
REMARK 500    PHE A 325     -167.37   -101.92                                   
REMARK 500    PRO B  10      127.73    -37.11                                   
REMARK 500    LYS B  52        1.97    -68.78                                   
REMARK 500    ALA B 170      -41.98   -136.83                                   
REMARK 500    LYS B 189     -110.65   -102.62                                   
REMARK 500    TYR B 219      -63.75    -99.00                                   
REMARK 500    TYR B 297      108.63    -57.95                                   
REMARK 500    VAL B 308      -56.31   -124.67                                   
REMARK 500    PHE B 325     -167.98   -102.67                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A2055        DISTANCE =  6.40 ANGSTROMS                       
REMARK 525    HOH B2022        DISTANCE =  5.81 ANGSTROMS                       
REMARK 525    HOH B2080        DISTANCE =  6.31 ANGSTROMS                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PLP A 1189                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PLP B 1189                
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3ZRR   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE AND SUBSTRATE SPECIFICITY OF A THERMOPHILIC        
REMARK 900 ARCHAEAL SERINE : PYRUVATE AMINOTRANSFERASE FROM SULFOLOBUS          
REMARK 900 SOLFATARICUS                                                         
REMARK 900 RELATED ID: 3ZRQ   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE AND SUBSTRATE SPECIFICITY OF A THERMOPHILIC        
REMARK 900 ARCHAEAL SERINE : PYRUVATE AMINOTRANSFERASE FROM SULFOLOBUS          
REMARK 900 SOLFATARICUS                                                         
DBREF  3ZRP A    1   384  UNP    Q97VM5   Q97VM5_SULSO     1    384             
DBREF  3ZRP B    1   384  UNP    Q97VM5   Q97VM5_SULSO     1    384             
SEQRES   1 A  384  MET ASP LYS LEU LEU LEU HIS VAL GLY PRO THR THR ILE          
SEQRES   2 A  384  LYS GLU ASP VAL LEU VAL ALA GLY LEU GLU ASN ASN VAL          
SEQRES   3 A  384  GLY PHE THR SER LYS GLU PHE VAL GLU ALA LEU ALA TYR          
SEQRES   4 A  384  SER LEU LYS GLY LEU ARG TYR VAL MET GLY ALA SER LYS          
SEQRES   5 A  384  ASN TYR GLN PRO LEU ILE ILE PRO GLY GLY GLY THR SER          
SEQRES   6 A  384  ALA MET GLU SER VAL THR SER LEU LEU LYS PRO ASN ASP          
SEQRES   7 A  384  LYS ILE LEU VAL VAL SER ASN GLY VAL PHE GLY ASP ARG          
SEQRES   8 A  384  TRP GLU GLN ILE PHE LYS ARG TYR PRO VAL ASN VAL LYS          
SEQRES   9 A  384  VAL LEU ARG PRO SER PRO GLY ASP TYR VAL LYS PRO GLY          
SEQRES  10 A  384  GLU VAL GLU GLU GLU VAL ARG LYS SER GLU TYR LYS LEU          
SEQRES  11 A  384  VAL ALA LEU THR HIS VAL GLU THR SER THR GLY VAL ARG          
SEQRES  12 A  384  GLU PRO VAL LYS ASP VAL ILE ASN LYS ILE ARG LYS TYR          
SEQRES  13 A  384  VAL GLU LEU ILE VAL VAL ASP GLY VAL SER SER VAL GLY          
SEQRES  14 A  384  ALA GLU GLU VAL LYS ALA GLU GLU TRP ASN VAL ASP VAL          
SEQRES  15 A  384  TYR LEU THR ALA SER GLN LYS ALA LEU GLY SER ALA ALA          
SEQRES  16 A  384  GLY LEU GLY LEU LEU LEU LEU SER PRO LYS ALA LEU SER          
SEQRES  17 A  384  ILE LEU ASP SER GLN ASN SER ILE ALA GLY TYR TYR LEU          
SEQRES  18 A  384  ASP LEU ARG ASN TRP LEU PRO VAL MET ARG GLY ALA GLU          
SEQRES  19 A  384  GLU GLY LYS ALA ALA TYR PHE ALA THR PRO PRO VAL HIS          
SEQRES  20 A  384  VAL ILE LEU GLN LEU ALA GLU ALA PHE ARG LEU ILE GLU          
SEQRES  21 A  384  LYS GLU GLY ILE GLU ASN ARG ILE LYS ARG HIS THR MET          
SEQRES  22 A  384  VAL ALA SER ALA ILE ARG ALA GLY LEU GLU ALA LEU GLY          
SEQRES  23 A  384  LEU GLU ILE VAL ALA ARG ARG PRO GLU SER TYR SER ASN          
SEQRES  24 A  384  THR VAL THR GLY VAL ILE LEU LYS VAL ALA ASP PRO GLN          
SEQRES  25 A  384  LYS VAL LEU ALA GLY THR VAL ASN GLU GLY VAL GLU PHE          
SEQRES  26 A  384  ALA PRO GLY VAL HIS PRO ALA PHE LYS TYR PHE ARG ILE          
SEQRES  27 A  384  GLY HIS MET GLY TRP VAL THR PRO ASN ASP ALA ILE ILE          
SEQRES  28 A  384  ALA ILE SER VAL ILE GLU ARG THR LEU ARG LYS LEU GLY          
SEQRES  29 A  384  GLU PRO ILE ARG PHE GLY GLU GLY VAL LYS ALA VAL GLU          
SEQRES  30 A  384  GLU VAL LEU PHE SER ALA ARG                                  
SEQRES   1 B  384  MET ASP LYS LEU LEU LEU HIS VAL GLY PRO THR THR ILE          
SEQRES   2 B  384  LYS GLU ASP VAL LEU VAL ALA GLY LEU GLU ASN ASN VAL          
SEQRES   3 B  384  GLY PHE THR SER LYS GLU PHE VAL GLU ALA LEU ALA TYR          
SEQRES   4 B  384  SER LEU LYS GLY LEU ARG TYR VAL MET GLY ALA SER LYS          
SEQRES   5 B  384  ASN TYR GLN PRO LEU ILE ILE PRO GLY GLY GLY THR SER          
SEQRES   6 B  384  ALA MET GLU SER VAL THR SER LEU LEU LYS PRO ASN ASP          
SEQRES   7 B  384  LYS ILE LEU VAL VAL SER ASN GLY VAL PHE GLY ASP ARG          
SEQRES   8 B  384  TRP GLU GLN ILE PHE LYS ARG TYR PRO VAL ASN VAL LYS          
SEQRES   9 B  384  VAL LEU ARG PRO SER PRO GLY ASP TYR VAL LYS PRO GLY          
SEQRES  10 B  384  GLU VAL GLU GLU GLU VAL ARG LYS SER GLU TYR LYS LEU          
SEQRES  11 B  384  VAL ALA LEU THR HIS VAL GLU THR SER THR GLY VAL ARG          
SEQRES  12 B  384  GLU PRO VAL LYS ASP VAL ILE ASN LYS ILE ARG LYS TYR          
SEQRES  13 B  384  VAL GLU LEU ILE VAL VAL ASP GLY VAL SER SER VAL GLY          
SEQRES  14 B  384  ALA GLU GLU VAL LYS ALA GLU GLU TRP ASN VAL ASP VAL          
SEQRES  15 B  384  TYR LEU THR ALA SER GLN LYS ALA LEU GLY SER ALA ALA          
SEQRES  16 B  384  GLY LEU GLY LEU LEU LEU LEU SER PRO LYS ALA LEU SER          
SEQRES  17 B  384  ILE LEU ASP SER GLN ASN SER ILE ALA GLY TYR TYR LEU          
SEQRES  18 B  384  ASP LEU ARG ASN TRP LEU PRO VAL MET ARG GLY ALA GLU          
SEQRES  19 B  384  GLU GLY LYS ALA ALA TYR PHE ALA THR PRO PRO VAL HIS          
SEQRES  20 B  384  VAL ILE LEU GLN LEU ALA GLU ALA PHE ARG LEU ILE GLU          
SEQRES  21 B  384  LYS GLU GLY ILE GLU ASN ARG ILE LYS ARG HIS THR MET          
SEQRES  22 B  384  VAL ALA SER ALA ILE ARG ALA GLY LEU GLU ALA LEU GLY          
SEQRES  23 B  384  LEU GLU ILE VAL ALA ARG ARG PRO GLU SER TYR SER ASN          
SEQRES  24 B  384  THR VAL THR GLY VAL ILE LEU LYS VAL ALA ASP PRO GLN          
SEQRES  25 B  384  LYS VAL LEU ALA GLY THR VAL ASN GLU GLY VAL GLU PHE          
SEQRES  26 B  384  ALA PRO GLY VAL HIS PRO ALA PHE LYS TYR PHE ARG ILE          
SEQRES  27 B  384  GLY HIS MET GLY TRP VAL THR PRO ASN ASP ALA ILE ILE          
SEQRES  28 B  384  ALA ILE SER VAL ILE GLU ARG THR LEU ARG LYS LEU GLY          
SEQRES  29 B  384  GLU PRO ILE ARG PHE GLY GLU GLY VAL LYS ALA VAL GLU          
SEQRES  30 B  384  GLU VAL LEU PHE SER ALA ARG                                  
HET    PLP  A1189      15                                                       
HET    PLP  B1189      15                                                       
HETNAM     PLP PYRIDOXAL-5'-PHOSPHATE                                           
HETSYN     PLP VITAMIN B6 PHOSPHATE                                             
FORMUL   3  PLP    2(C8 H10 N O6 P)                                             
FORMUL   5  HOH   *596(H2 O)                                                    
HELIX    1   1 LYS A   14  GLY A   21  1                                   8    
HELIX    2   2 SER A   30  GLY A   49  1                                  20    
HELIX    3   3 GLY A   62  VAL A   70  1                                   9    
HELIX    4   4 THR A   71  LEU A   74  5                                   4    
HELIX    5   5 GLY A   86  LYS A   97  1                                  12    
HELIX    6   6 LYS A  115  SER A  126  1                                  12    
HELIX    7   7 PRO A  145  ARG A  154  1                                  10    
HELIX    8   8 SER A  203  GLN A  213  1                                  11    
HELIX    9   9 ASP A  222  GLU A  235  1                                  14    
HELIX   10  10 PRO A  245  GLY A  263  1                                  19    
HELIX   11  11 GLY A  263  LEU A  285  1                                  23    
HELIX   12  12 ARG A  293  SER A  296  5                                   4    
HELIX   13  13 ASP A  310  ASN A  320  1                                  11    
HELIX   14  14 THR A  345  GLY A  364  1                                  20    
HELIX   15  15 GLU A  371  SER A  382  1                                  12    
HELIX   16  16 LYS B   14  ALA B   20  1                                   7    
HELIX   17  17 GLY B   21  GLU B   23  5                                   3    
HELIX   18  18 SER B   30  GLY B   49  1                                  20    
HELIX   19  19 GLY B   62  VAL B   70  1                                   9    
HELIX   20  20 THR B   71  LEU B   74  5                                   4    
HELIX   21  21 GLY B   86  LYS B   97  1                                  12    
HELIX   22  22 LYS B  115  SER B  126  1                                  12    
HELIX   23  23 PRO B  145  ARG B  154  1                                  10    
HELIX   24  24 SER B  203  GLN B  213  1                                  11    
HELIX   25  25 ASP B  222  GLU B  235  1                                  14    
HELIX   26  26 PRO B  245  GLY B  263  1                                  19    
HELIX   27  27 GLY B  263  LEU B  285  1                                  23    
HELIX   28  28 ARG B  293  SER B  296  5                                   4    
HELIX   29  29 ASP B  310  ASN B  320  1                                  11    
HELIX   30  30 THR B  345  GLY B  364  1                                  20    
HELIX   31  31 GLU B  371  SER B  382  1                                  12    
SHEET    1  AA 7 GLN A  55  PRO A  60  0                                        
SHEET    2  AA 7 LEU A 197  LEU A 202 -1  O  GLY A 198   N  ILE A  59           
SHEET    3  AA 7 VAL A 182  ALA A 186 -1  O  TYR A 183   N  LEU A 201           
SHEET    4  AA 7 VAL A 157  ASP A 163  1  O  VAL A 162   N  LEU A 184           
SHEET    5  AA 7 TYR A 128  THR A 134  1  O  TYR A 128   N  GLU A 158           
SHEET    6  AA 7 LYS A  79  VAL A  83  1  O  LYS A  79   N  LYS A 129           
SHEET    7  AA 7 ASN A 102  LEU A 106  1  O  ASN A 102   N  ILE A  80           
SHEET    1  AB 3 VAL A 301  ILE A 305  0                                        
SHEET    2  AB 3 TYR A 335  GLY A 339 -1  O  PHE A 336   N  VAL A 304           
SHEET    3  AB 3 ALA A 326  PRO A 327 -1  O  ALA A 326   N  ARG A 337           
SHEET    1  BA 7 GLN B  55  PRO B  60  0                                        
SHEET    2  BA 7 LEU B 197  LEU B 202 -1  O  GLY B 198   N  ILE B  59           
SHEET    3  BA 7 VAL B 182  ALA B 186 -1  O  TYR B 183   N  LEU B 201           
SHEET    4  BA 7 VAL B 157  ASP B 163  1  O  VAL B 162   N  LEU B 184           
SHEET    5  BA 7 TYR B 128  THR B 134  1  O  TYR B 128   N  GLU B 158           
SHEET    6  BA 7 LYS B  79  VAL B  83  1  O  LYS B  79   N  LYS B 129           
SHEET    7  BA 7 ASN B 102  LEU B 106  1  O  ASN B 102   N  ILE B  80           
SHEET    1  BB 4 GLU B 288  ILE B 289  0                                        
SHEET    2  BB 4 VAL B 301  ILE B 305 -1  N  ILE B 305   O  GLU B 288           
SHEET    3  BB 4 TYR B 335  GLY B 339 -1  O  PHE B 336   N  VAL B 304           
SHEET    4  BB 4 ALA B 326  PRO B 327 -1  O  ALA B 326   N  ARG B 337           
LINK         NZ  LYS A 189                 C4A PLP A1189     1555   1555  1.37  
LINK         NZ  LYS B 189                 C4A PLP B1189     1555   1555  1.37  
SITE     1 AC1 14 GLY A  62  GLY A  63  THR A  64  PHE A  88                    
SITE     2 AC1 14 VAL A 136  THR A 138  ASP A 163  VAL A 165                    
SITE     3 AC1 14 SER A 166  GLN A 188  LYS A 189  HOH A2070                    
SITE     4 AC1 14 TYR B 240  THR B 243                                          
SITE     1 AC2 14 TYR A 240  THR A 243  HOH A2239  GLY B  62                    
SITE     2 AC2 14 GLY B  63  THR B  64  PHE B  88  VAL B 136                    
SITE     3 AC2 14 THR B 138  ASP B 163  VAL B 165  SER B 166                    
SITE     4 AC2 14 GLN B 188  LYS B 189                                          
CRYST1  162.430   54.970  101.810  90.00 111.27  90.00 C 1 2 1       8          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.006156  0.000000  0.002397        0.00000                         
SCALE2      0.000000  0.018192  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.010540        0.00000