HEADER    TRANSFERASE                             27-JUL-00   1FG3              
TITLE     CRYSTAL STRUCTURE OF L-HISTIDINOL PHOSPHATE AMINOTRANSFERASE COMPLEXED
TITLE    2 WITH L-HISTIDINOL                                                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HISTIDINOL PHOSPHATE AMINOTRANSFERASE;                     
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: IMIDAZOLE ACETOL-PHOSPHATE TRANSAMINASE;                    
COMPND   5 EC: 2.6.1.9;                                                         
COMPND   6 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                                         
KEYWDS    AMINOTRANSFERASE, HISC, HISTIDINE BIOSYNTHESIS, PYRIDOXAL PHOSPHATE,  
KEYWDS   2 TRANSFERASE                                                          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.SIVARAMAN,M.CYGLER                                                  
REVDAT   5   04-OCT-17 1FG3    1       REMARK                                   
REVDAT   4   13-JUL-11 1FG3    1       VERSN                                    
REVDAT   3   24-FEB-09 1FG3    1       VERSN                                    
REVDAT   2   01-APR-03 1FG3    1       JRNL                                     
REVDAT   1   22-AUG-01 1FG3    0                                                
JRNL        AUTH   J.SIVARAMAN,Y.LI,R.LAROCQUE,J.D.SCHRAG,M.CYGLER,A.MATTE      
JRNL        TITL   CRYSTAL STRUCTURE OF HISTIDINOL PHOSPHATE AMINOTRANSFERASE   
JRNL        TITL 2 (HISC) FROM ESCHERICHIA COLI, AND ITS COVALENT COMPLEX WITH  
JRNL        TITL 3 PYRIDOXAL-5'-PHOSPHATE AND L-HISTIDINOL PHOSPHATE.           
JRNL        REF    J.MOL.BIOL.                   V. 311   761 2001              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   11518529                                                     
JRNL        DOI    10.1006/JMBI.2001.4882                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
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) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 45.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.600                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 92.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 17053                          
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) : 0.198                           
REMARK   3   FREE R VALUE                     : 0.218                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 1705                            
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            : 2699                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 29                                      
REMARK   3   SOLVENT ATOMS            : 134                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 22.30                          
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) : 0.007                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.500                           
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 1FG3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-AUG-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000011560.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 31-MAY-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 8.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU RU300                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IIC                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : R-AXIS                             
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 17053                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 45.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 92.6                               
REMARK 200  DATA REDUNDANCY                : 3.000                              
REMARK 200  R MERGE                    (I) : 0.07200                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 11.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.28                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 68.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.40                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.21300                            
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: NULL                         
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 46.62                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.30                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 3350, TRIS-HCL, MGCL2, GLYCEROL,     
REMARK 280  PH 8.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 292K             
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       66.24200            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       31.21750            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       66.24200            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       31.21750            
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,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 8660 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 24710 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -37.0 KCAL/MOL                        
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   BIOMT1   2 -1.000000  0.000000  0.000000      132.48400            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  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     MSE A     1                                                      
REMARK 465     SER A     2                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     THR A   3    OG1  CG2                                            
REMARK 470     GLU A  12    CG   CD   OE1  OE2                                  
REMARK 470     GLN A  21    CG   CD   OE1  NE2                                  
REMARK 470     ARG A  24    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ARG A  25    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LEU A  26    CG   CD1  CD2                                       
REMARK 470     ASN A  29    CG   OD1  ND2                                       
REMARK 470     ASP A  31    CG   OD1  OD2                                       
REMARK 470     GLN A  49    CG   CD   OE1  NE2                                  
REMARK 470     GLN A 260    CG   CD   OE1  NE2                                  
REMARK 470     LYS A 305    CG   CD   CE   NZ                                   
REMARK 470     GLU A 342    CG   CD   OE1  OE2                                  
REMARK 470     GLN A 355    CG   CD   OE1  NE2                                  
REMARK 470     VAL A 356    CG1  CG2                                            
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   NH2  ARG A   125     O    ASP A   145              2.07            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
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   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    SER A  22   CA    SER A  22   CB      0.307                       
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    LYS A 214   CD  -  CE  -  NZ  ANGL. DEV. =  14.9 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    ARG A  24       49.32    174.31                                   
REMARK 500    LEU A  26       53.96   -169.77                                   
REMARK 500    LYS A 100      -59.71   -121.29                                   
REMARK 500    LYS A 178      -39.49   -130.03                                   
REMARK 500    CYS A 191       58.16   -155.92                                   
REMARK 500    LYS A 214     -108.05    -67.32                                   
REMARK 500    THR A 297     -153.81   -137.09                                   
REMARK 500    ASN A 325      -34.64    -38.80                                   
REMARK 500    SER A 329       -4.35     75.34                                   
REMARK 500    GLU A 354     -110.66    -95.97                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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 500                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HSA A 501                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1FG7   RELATED DB: PDB                                   
REMARK 900 L-HISTIDINOL PHOSPHATE AMINOTRANSFERASE UNCOMPLEXED                  
DBREF  1FG3 A    1   356  UNP    P06986   HIS8_ECOLI       1    356             
SEQADV 1FG3 MSE A    1  UNP  P06986    MET     1 MODIFIED RESIDUE               
SEQADV 1FG3 MSE A  112  UNP  P06986    MET   112 MODIFIED RESIDUE               
SEQADV 1FG3 MSE A  237  UNP  P06986    MET   237 MODIFIED RESIDUE               
SEQADV 1FG3 MSE A  265  UNP  P06986    MET   265 MODIFIED RESIDUE               
SEQRES   1 A  356  MSE SER THR VAL THR ILE THR ASP LEU ALA ARG GLU ASN          
SEQRES   2 A  356  VAL ARG ASN LEU THR PRO TYR GLN SER ALA ARG ARG LEU          
SEQRES   3 A  356  GLY GLY ASN GLY ASP VAL TRP LEU ASN ALA ASN GLU TYR          
SEQRES   4 A  356  PRO THR ALA VAL GLU PHE GLN LEU THR GLN GLN THR LEU          
SEQRES   5 A  356  ASN ARG TYR PRO GLU CYS GLN PRO LYS ALA VAL ILE GLU          
SEQRES   6 A  356  ASN TYR ALA GLN TYR ALA GLY VAL LYS PRO GLU GLN VAL          
SEQRES   7 A  356  LEU VAL SER ARG GLY ALA ASP GLU GLY ILE GLU LEU LEU          
SEQRES   8 A  356  ILE ARG ALA PHE CYS GLU PRO GLY LYS ASP ALA ILE LEU          
SEQRES   9 A  356  TYR CYS PRO PRO THR TYR GLY MSE TYR SER VAL SER ALA          
SEQRES  10 A  356  GLU THR ILE GLY VAL GLU CYS ARG THR VAL PRO THR LEU          
SEQRES  11 A  356  ASP ASN TRP GLN LEU ASP LEU GLN GLY ILE SER ASP LYS          
SEQRES  12 A  356  LEU ASP GLY VAL LYS VAL VAL TYR VAL CYS SER PRO ASN          
SEQRES  13 A  356  ASN PRO THR GLY GLN LEU ILE ASN PRO GLN ASP PHE ARG          
SEQRES  14 A  356  THR LEU LEU GLU LEU THR ARG GLY LYS ALA ILE VAL VAL          
SEQRES  15 A  356  ALA ASP GLU ALA TYR ILE GLU PHE CYS PRO GLN ALA SER          
SEQRES  16 A  356  LEU ALA GLY TRP LEU ALA GLU TYR PRO HIS LEU ALA ILE          
SEQRES  17 A  356  LEU ARG THR LEU SER LYS ALA PHE ALA LEU ALA GLY LEU          
SEQRES  18 A  356  ARG CYS GLY PHE THR LEU ALA ASN GLU GLU VAL ILE ASN          
SEQRES  19 A  356  LEU LEU MSE LYS VAL ILE ALA PRO TYR PRO LEU SER THR          
SEQRES  20 A  356  PRO VAL ALA ASP ILE ALA ALA GLN ALA LEU SER PRO GLN          
SEQRES  21 A  356  GLY ILE VAL ALA MSE ARG GLU ARG VAL ALA GLN ILE ILE          
SEQRES  22 A  356  ALA GLU ARG GLU TYR LEU ILE ALA ALA LEU LYS GLU ILE          
SEQRES  23 A  356  PRO CYS VAL GLU GLN VAL PHE ASP SER GLU THR ASN TYR          
SEQRES  24 A  356  ILE LEU ALA ARG PHE LYS ALA SER SER ALA VAL PHE LYS          
SEQRES  25 A  356  SER LEU TRP ASP GLN GLY ILE ILE LEU ARG ASP GLN ASN          
SEQRES  26 A  356  LYS GLN PRO SER LEU SER GLY CYS LEU ARG ILE THR VAL          
SEQRES  27 A  356  GLY THR ARG GLU GLU SER GLN ARG VAL ILE ASP ALA LEU          
SEQRES  28 A  356  ARG ALA GLU GLN VAL                                          
MODRES 1FG3 MSE A  112  MET  SELENOMETHIONINE                                   
MODRES 1FG3 MSE A  237  MET  SELENOMETHIONINE                                   
MODRES 1FG3 MSE A  265  MET  SELENOMETHIONINE                                   
HET    MSE  A 112       8                                                       
HET    MSE  A 237       8                                                       
HET    MSE  A 265       8                                                       
HET    PLP  A 500      15                                                       
HET    HSA  A 501      14                                                       
HETNAM     MSE SELENOMETHIONINE                                                 
HETNAM     PLP PYRIDOXAL-5'-PHOSPHATE                                           
HETNAM     HSA PHOSPHORIC ACID MONO-[2-AMINO-3-(3H-IMIDAZOL-4-YL)-              
HETNAM   2 HSA  PROPYL]ESTER                                                    
HETSYN     PLP VITAMIN B6 PHOSPHATE                                             
FORMUL   1  MSE    3(C5 H11 N O2 SE)                                            
FORMUL   2  PLP    C8 H10 N O6 P                                                
FORMUL   3  HSA    C6 H12 N3 O4 P                                               
FORMUL   4  HOH   *134(H2 O)                                                    
HELIX    1   1 THR A    5  ALA A   10  1                                   6    
HELIX    2   2 ARG A   11  LEU A   17  1                                   7    
HELIX    3   3 PRO A   60  GLY A   72  1                                  13    
HELIX    4   4 LYS A   74  GLU A   76  5                                   3    
HELIX    5   5 ARG A   82  CYS A   96  1                                  15    
HELIX    6   6 GLY A  111  GLY A  121  1                                  11    
HELIX    7   7 ASP A  136  ASP A  142  1                                   7    
HELIX    8   8 ASN A  164  ARG A  176  1                                  13    
HELIX    9   9 TYR A  187  CYS A  191  5                                   5    
HELIX   10  10 CYS A  191  SER A  195  5                                   5    
HELIX   11  11 LEU A  196  LEU A  200  5                                   5    
HELIX   12  12 LEU A  218  ARG A  222  5                                   5    
HELIX   13  13 ASN A  229  MSE A  237  1                                   9    
HELIX   14  14 SER A  246  LEU A  257  1                                  12    
HELIX   15  15 SER A  258  LYS A  284  1                                  27    
HELIX   16  16 ALA A  306  GLN A  317  1                                  12    
HELIX   17  17 THR A  340  ALA A  353  1                                  14    
SHEET    1   A 2 VAL A  32  TRP A  33  0                                        
SHEET    2   A 2 ILE A 319  ILE A 320  1  N  ILE A 320   O  VAL A  32           
SHEET    1   B 7 VAL A  78  SER A  81  0                                        
SHEET    2   B 7 GLY A 224  ALA A 228 -1  N  GLY A 224   O  SER A  81           
SHEET    3   B 7 LEU A 206  THR A 211 -1  O  ILE A 208   N  LEU A 227           
SHEET    4   B 7 ILE A 180  ASP A 184  1  O  VAL A 181   N  ALA A 207           
SHEET    5   B 7 VAL A 147  CYS A 153  1  O  LYS A 148   N  ILE A 180           
SHEET    6   B 7 ALA A 102  TYR A 105  1  O  ALA A 102   N  LYS A 148           
SHEET    7   B 7 GLU A 123  THR A 126  1  O  GLU A 123   N  ILE A 103           
SHEET    1   C 4 VAL A 289  VAL A 292  0                                        
SHEET    2   C 4 TYR A 299  PHE A 304 -1  N  ARG A 303   O  GLN A 291           
SHEET    3   C 4 CYS A 333  THR A 337 -1  N  LEU A 334   O  ALA A 302           
SHEET    4   C 4 ARG A 322  ASP A 323 -1  O  ARG A 322   N  ARG A 335           
LINK         C4A PLP A 500                 N   HSA A 501     1555   1555  1.36  
LINK         C4A PLP A 500                 NZ  LYS A 214     1555   1555  1.49  
LINK         C   GLY A 111                 N   MSE A 112     1555   1555  1.32  
LINK         C   MSE A 112                 N   TYR A 113     1555   1555  1.33  
LINK         C   LEU A 236                 N   MSE A 237     1555   1555  1.33  
LINK         C   MSE A 237                 N   LYS A 238     1555   1555  1.33  
LINK         C   ALA A 264                 N   MSE A 265     1555   1555  1.33  
LINK         C   MSE A 265                 N   ARG A 266     1555   1555  1.33  
CISPEP   1 PRO A  107    PRO A  108          0        -0.08                     
CISPEP   2 SER A  154    PRO A  155          0        -0.14                     
CISPEP   3 ASN A  157    PRO A  158          0         0.69                     
SITE     1 AC1 15 TYR A  55  GLY A  83  ALA A  84  ASP A  85                    
SITE     2 AC1 15 TYR A 110  CYS A 153  ASN A 157  ASP A 184                    
SITE     3 AC1 15 ALA A 186  TYR A 187  THR A 211  SER A 213                    
SITE     4 AC1 15 LYS A 214  ARG A 222  HSA A 501                               
SITE     1 AC2 11 TYR A  20  ALA A  36  TYR A  55  ASP A  85                    
SITE     2 AC2 11 TYR A 110  ASN A 157  LYS A 214  TYR A 243                    
SITE     3 AC2 11 ARG A 322  ARG A 335  PLP A 500                               
CRYST1  132.484   62.435   45.530  90.00 104.26  90.00 C 1 2 1       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      0.007548  0.000000  0.001919        0.00000                         
SCALE2      0.000000  0.016017  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.022662        0.00000