HEADER    TRANSFERASE                             06-FEB-02   1KZI              
TITLE     CRYSTAL STRUCTURE OF ECTS/DUMP/THF COMPLEX                            
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: THYMIDYLATE SYNTHASE;                                      
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: TS, TSASE;                                                  
COMPND   5 EC: 2.1.1.45;                                                        
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    ENZYME SUBSTRATE COMPLEX, TRANSFERASE                                 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    T.A.FRITZ,L.LIU,J.S.FINER-MOORE,R.M.STROUD                            
REVDAT   5   16-OCT-24 1KZI    1       REMARK                                   
REVDAT   4   16-AUG-23 1KZI    1       REMARK SEQADV LINK                       
REVDAT   3   13-JUL-11 1KZI    1       VERSN                                    
REVDAT   2   24-FEB-09 1KZI    1       VERSN                                    
REVDAT   1   03-JUL-02 1KZI    0                                                
JRNL        AUTH   T.A.FRITZ,L.LIU,J.S.FINER-MOORE,R.M.STROUD                   
JRNL        TITL   TRYPTOPHAN 80 AND LEUCINE 143 ARE CRITICAL FOR THE HYDRIDE   
JRNL        TITL 2 TRANSFER STEP OF THYMIDYLATE SYNTHASE BY CONTROLLING ACTIVE  
JRNL        TITL 3 SITE ACCESS.                                                 
JRNL        REF    BIOCHEMISTRY                  V.  41  7021 2002              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   12033935                                                     
JRNL        DOI    10.1021/BI012108C                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.75 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.75                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 29.46                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 1912305.650                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 59490                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.197                           
REMARK   3   FREE R VALUE                     : 0.221                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 3007                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.004                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.75                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.86                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 92.40                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 8758                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3450                       
REMARK   3   BIN FREE R VALUE                    : 0.3750                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 5.10                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 467                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.017                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4306                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 138                                     
REMARK   3   SOLVENT ATOMS            : 361                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 25.90                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 27.30                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -1.06000                                             
REMARK   3    B22 (A**2) : -1.06000                                             
REMARK   3    B33 (A**2) : 2.13000                                              
REMARK   3    B12 (A**2) : 0.33000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.21                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.17                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.24                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.19                            
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) : 24.10                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.900                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.38                                                 
REMARK   3   BSOL        : 43.37                                                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : FORM_DUMP_THF.PARAM                            
REMARK   3  PARAMETER FILE  3  : DTT_ODT_GCL.PARAM                              
REMARK   3  PARAMETER FILE  4  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  5  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  6  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : FORM_DUMP_THF.TOPO                             
REMARK   3  TOPOLOGY FILE  3   : DTT_ODT_GCL.TOPO                               
REMARK   3  TOPOLOGY FILE  4   : ION.TOPO                                       
REMARK   3  TOPOLOGY FILE  5   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  6   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1KZI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-FEB-02.                  
REMARK 100 THE DEPOSITION ID IS D_1000015505.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 16-AUG-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 8.6                                
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                             
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : OSMIC MIRRORS                      
REMARK 200  OPTICS                         : OSMIC MIRRORS                      
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IV                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 59657                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.750                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 29.460                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.6                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
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) : 1.81                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 88.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
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: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: PDB ID 2KCE WITH LIGANDS AND WATER REMOVED.          
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 50.29                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.47                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM TAPS, 2.6 M AMMONIUM SULFATE,     
REMARK 280  10 MM DTT, PH 8.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE       
REMARK 280  298K                                                                
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 63                             
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+1/2                                            
REMARK 290       6555   X-Y,X,Z+1/2                                             
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        0.00000            
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        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       33.38550            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       33.38550            
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       33.38550            
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 300 REMARK: THE DIMER COMPRISING THE ASYMMETRIC UNIT IS THE FUNCTIONAL   
REMARK 300 BIOLOGICAL ENTITY.                                                   
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: 8800 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 19810 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -18.0 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 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    GLY A    15     NH2  ARG A   107     6545     2.03            
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    TYR A  94      -69.38    -24.11                                   
REMARK 500    ALA A 100       65.78   -153.63                                   
REMARK 500    ASP A 122       65.09   -150.58                                   
REMARK 500    PRO B  43       60.05    -69.34                                   
REMARK 500    ILE B  69        2.52    -66.99                                   
REMARK 500    GLU B  82       -5.32    -58.08                                   
REMARK 500    TYR B  94      -68.28    -24.43                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600 THG 303 IS ASSOCIATED WITH CHAIN A.                                  
REMARK 600 THG 305 IS ASSOCIATED WITH CHAIN B.                                  
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CO3 A 803                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CO3 A 804                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CO3 A 805                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE UMP A 302                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE THG A 303                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DTU A 800                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE UMP B 304                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE THG B 305                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DTT B 802                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 801                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1KZJ   RELATED DB: PDB                                   
REMARK 900 1KZJ CONTAINS THE SAME PROTEIN                                       
DBREF  1KZI A    1   264  UNP    P0A884   TYSY_ECOLI       1    264             
DBREF  1KZI B    1   264  UNP    P0A884   TYSY_ECOLI       1    264             
SEQADV 1KZI CXM A    1  UNP  P0A884    MET     1 MODIFIED RESIDUE               
SEQADV 1KZI CXM B    1  UNP  P0A884    MET     1 MODIFIED RESIDUE               
SEQRES   1 A  264  CXM LYS GLN TYR LEU GLU LEU MET GLN LYS VAL LEU ASP          
SEQRES   2 A  264  GLU GLY THR GLN LYS ASN ASP ARG THR GLY THR GLY THR          
SEQRES   3 A  264  LEU SER ILE PHE GLY HIS GLN MET ARG PHE ASN LEU GLN          
SEQRES   4 A  264  ASP GLY PHE PRO LEU VAL THR THR LYS ARG CYS HIS LEU          
SEQRES   5 A  264  ARG SER ILE ILE HIS GLU LEU LEU TRP PHE LEU GLN GLY          
SEQRES   6 A  264  ASP THR ASN ILE ALA TYR LEU HIS GLU ASN ASN VAL THR          
SEQRES   7 A  264  ILE TRP ASP GLU TRP ALA ASP GLU ASN GLY ASP LEU GLY          
SEQRES   8 A  264  PRO VAL TYR GLY LYS GLN TRP ARG ALA TRP PRO THR PRO          
SEQRES   9 A  264  ASP GLY ARG HIS ILE ASP GLN ILE THR THR VAL LEU ASN          
SEQRES  10 A  264  GLN LEU LYS ASN ASP PRO ASP SER ARG ARG ILE ILE VAL          
SEQRES  11 A  264  SER ALA TRP ASN VAL GLY GLU LEU ASP LYS MET ALA LEU          
SEQRES  12 A  264  ALA PRO CYS HIS ALA PHE PHE GLN PHE TYR VAL ALA ASP          
SEQRES  13 A  264  GLY LYS LEU SER CYS GLN LEU TYR GLN ARG SER CYS ASP          
SEQRES  14 A  264  VAL PHE LEU GLY LEU PRO PHE ASN ILE ALA SER TYR ALA          
SEQRES  15 A  264  LEU LEU VAL HIS MET MET ALA GLN GLN CYS ASP LEU GLU          
SEQRES  16 A  264  VAL GLY ASP PHE VAL TRP THR GLY GLY ASP THR HIS LEU          
SEQRES  17 A  264  TYR SER ASN HIS MET ASP GLN THR HIS LEU GLN LEU SER          
SEQRES  18 A  264  ARG GLU PRO ARG PRO LEU PRO LYS LEU ILE ILE LYS ARG          
SEQRES  19 A  264  LYS PRO GLU SER ILE PHE ASP TYR ARG PHE GLU ASP PHE          
SEQRES  20 A  264  GLU ILE GLU GLY TYR ASP PRO HIS PRO GLY ILE LYS ALA          
SEQRES  21 A  264  PRO VAL ALA ILE                                              
SEQRES   1 B  264  CXM LYS GLN TYR LEU GLU LEU MET GLN LYS VAL LEU ASP          
SEQRES   2 B  264  GLU GLY THR GLN LYS ASN ASP ARG THR GLY THR GLY THR          
SEQRES   3 B  264  LEU SER ILE PHE GLY HIS GLN MET ARG PHE ASN LEU GLN          
SEQRES   4 B  264  ASP GLY PHE PRO LEU VAL THR THR LYS ARG CYS HIS LEU          
SEQRES   5 B  264  ARG SER ILE ILE HIS GLU LEU LEU TRP PHE LEU GLN GLY          
SEQRES   6 B  264  ASP THR ASN ILE ALA TYR LEU HIS GLU ASN ASN VAL THR          
SEQRES   7 B  264  ILE TRP ASP GLU TRP ALA ASP GLU ASN GLY ASP LEU GLY          
SEQRES   8 B  264  PRO VAL TYR GLY LYS GLN TRP ARG ALA TRP PRO THR PRO          
SEQRES   9 B  264  ASP GLY ARG HIS ILE ASP GLN ILE THR THR VAL LEU ASN          
SEQRES  10 B  264  GLN LEU LYS ASN ASP PRO ASP SER ARG ARG ILE ILE VAL          
SEQRES  11 B  264  SER ALA TRP ASN VAL GLY GLU LEU ASP LYS MET ALA LEU          
SEQRES  12 B  264  ALA PRO CYS HIS ALA PHE PHE GLN PHE TYR VAL ALA ASP          
SEQRES  13 B  264  GLY LYS LEU SER CYS GLN LEU TYR GLN ARG SER CYS ASP          
SEQRES  14 B  264  VAL PHE LEU GLY LEU PRO PHE ASN ILE ALA SER TYR ALA          
SEQRES  15 B  264  LEU LEU VAL HIS MET MET ALA GLN GLN CYS ASP LEU GLU          
SEQRES  16 B  264  VAL GLY ASP PHE VAL TRP THR GLY GLY ASP THR HIS LEU          
SEQRES  17 B  264  TYR SER ASN HIS MET ASP GLN THR HIS LEU GLN LEU SER          
SEQRES  18 B  264  ARG GLU PRO ARG PRO LEU PRO LYS LEU ILE ILE LYS ARG          
SEQRES  19 B  264  LYS PRO GLU SER ILE PHE ASP TYR ARG PHE GLU ASP PHE          
SEQRES  20 B  264  GLU ILE GLU GLY TYR ASP PRO HIS PRO GLY ILE LYS ALA          
SEQRES  21 B  264  PRO VAL ALA ILE                                              
MODRES 1KZI CXM A    1  MET  N-CARBOXYMETHIONINE                                
MODRES 1KZI CXM B    1  MET  N-CARBOXYMETHIONINE                                
HET    CXM  A   1      11                                                       
HET    CXM  B   1      11                                                       
HET    CO3  A 803       4                                                       
HET    CO3  A 804       4                                                       
HET    CO3  A 805       4                                                       
HET    UMP  A 302      20                                                       
HET    THG  A 303      32                                                       
HET    DTU  A 800       8                                                       
HET    GOL  A 801       6                                                       
HET    UMP  B 304      20                                                       
HET    THG  B 305      32                                                       
HET    DTT  B 802       8                                                       
HETNAM     CXM N-CARBOXYMETHIONINE                                              
HETNAM     CO3 CARBONATE ION                                                    
HETNAM     UMP 2'-DEOXYURIDINE 5'-MONOPHOSPHATE                                 
HETNAM     THG (6S)-5,6,7,8-TETRAHYDROFOLATE                                    
HETNAM     DTU (2R,3S)-1,4-DIMERCAPTOBUTANE-2,3-DIOL                            
HETNAM     GOL GLYCEROL                                                         
HETNAM     DTT 2,3-DIHYDROXY-1,4-DITHIOBUTANE                                   
HETSYN     UMP DUMP                                                             
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
HETSYN     DTT 1,4-DITHIOTHREITOL                                               
FORMUL   1  CXM    2(C6 H11 N O4 S)                                             
FORMUL   3  CO3    3(C O3 2-)                                                   
FORMUL   6  UMP    2(C9 H13 N2 O8 P)                                            
FORMUL   7  THG    2(C19 H23 N7 O6)                                             
FORMUL   8  DTU    C4 H10 O2 S2                                                 
FORMUL   9  GOL    C3 H8 O3                                                     
FORMUL  12  DTT    C4 H10 O2 S2                                                 
FORMUL  13  HOH   *361(H2 O)                                                    
HELIX    1   1 CXM A    1  GLY A   15  1                                  15    
HELIX    2   2 GLN A   39  GLY A   41  5                                   3    
HELIX    3   3 HIS A   51  GLY A   65  1                                  15    
HELIX    4   4 ILE A   69  ASN A   75  1                                   7    
HELIX    5   5 TRP A   80  ALA A   84  5                                   5    
HELIX    6   6 VAL A   93  ALA A  100  1                                   8    
HELIX    7   7 ASP A  110  ASP A  122  1                                  13    
HELIX    8   8 ASN A  134  MET A  141  5                                   8    
HELIX    9   9 LEU A  172  CYS A  192  1                                  21    
HELIX   10  10 HIS A  212  SER A  221  1                                  10    
HELIX   11  11 ARG A  243  GLU A  245  5                                   3    
HELIX   12  12 CXM B    1  GLY B   15  1                                  15    
HELIX   13  13 GLN B   39  GLY B   41  5                                   3    
HELIX   14  14 HIS B   51  GLN B   64  1                                  14    
HELIX   15  15 ILE B   69  ASN B   75  1                                   7    
HELIX   16  16 TRP B   80  ALA B   84  5                                   5    
HELIX   17  17 VAL B   93  ALA B  100  1                                   8    
HELIX   18  18 ASP B  110  ASP B  122  1                                  13    
HELIX   19  19 ASN B  134  MET B  141  5                                   8    
HELIX   20  20 LEU B  172  CYS B  192  1                                  21    
HELIX   21  21 HIS B  212  SER B  221  1                                  10    
HELIX   22  22 ARG B  243  GLU B  245  5                                   3    
SHEET    1   A 6 THR A  16  LYS A  18  0                                        
SHEET    2   A 6 THR A  26  ASN A  37 -1  O  THR A  26   N  LYS A  18           
SHEET    3   A 6 GLU A 195  TYR A 209 -1  O  TRP A 201   N  MET A  34           
SHEET    4   A 6 LYS A 158  ASP A 169  1  N  GLN A 165   O  THR A 202           
SHEET    5   A 6 HIS A 147  ALA A 155 -1  N  TYR A 153   O  SER A 160           
SHEET    6   A 6 ILE A 129  SER A 131 -1  N  VAL A 130   O  PHE A 150           
SHEET    1   B 2 TRP A 101  PRO A 102  0                                        
SHEET    2   B 2 HIS A 108  ILE A 109 -1  O  ILE A 109   N  TRP A 101           
SHEET    1   C 2 LYS A 229  ILE A 232  0                                        
SHEET    2   C 2 PHE A 247  GLU A 250 -1  O  GLU A 250   N  LYS A 229           
SHEET    1   D 6 THR B  16  LYS B  18  0                                        
SHEET    2   D 6 THR B  26  ASN B  37 -1  O  SER B  28   N  THR B  16           
SHEET    3   D 6 GLU B 195  TYR B 209 -1  O  TRP B 201   N  MET B  34           
SHEET    4   D 6 LYS B 158  ASP B 169  1  N  GLN B 165   O  THR B 202           
SHEET    5   D 6 HIS B 147  ALA B 155 -1  N  PHE B 149   O  TYR B 164           
SHEET    6   D 6 ILE B 129  SER B 131 -1  N  VAL B 130   O  PHE B 150           
SHEET    1   E 2 TRP B 101  PRO B 102  0                                        
SHEET    2   E 2 HIS B 108  ILE B 109 -1  O  ILE B 109   N  TRP B 101           
SHEET    1   F 2 LYS B 229  ILE B 232  0                                        
SHEET    2   F 2 PHE B 247  GLU B 250 -1  O  GLU B 250   N  LYS B 229           
LINK         C   CXM A   1                 N   LYS A   2     1555   1555  1.33  
LINK         SG  CYS A 146                 C6  UMP A 302     1555   1555  1.67  
LINK         SG  CYS A 192                 S4  DTU A 800     1555   1555  2.07  
LINK         C   CXM B   1                 N   LYS B   2     1555   1555  1.33  
LINK         SG  CYS B 146                 C6  UMP B 304     1555   1555  1.69  
SITE     1 AC1  3 ARG A  99  HOH A 558  HOH A 738                               
SITE     1 AC2  3 ARG A  49  GLY A 257  HOH A 493                               
SITE     1 AC3  4 GLU A 223  ARG A 225  HIS A 255  HOH A 744                    
SITE     1 AC4 18 ARG A  21  TYR A  94  CYS A 146  HIS A 147                    
SITE     2 AC4 18 GLN A 165  ARG A 166  SER A 167  CYS A 168                    
SITE     3 AC4 18 ASP A 169  ASN A 177  HIS A 207  TYR A 209                    
SITE     4 AC4 18 THG A 303  HOH A 412  HOH A 432  HOH A 658                    
SITE     5 AC4 18 ARG B 126  ARG B 127                                          
SITE     1 AC5 21 HIS A  51  ILE A  79  TRP A  80  TRP A  83                    
SITE     2 AC5 21 LEU A 143  ASP A 169  GLY A 173  PHE A 176                    
SITE     3 AC5 21 VAL A 262  ALA A 263  UMP A 302  HOH A 419                    
SITE     4 AC5 21 HOH A 442  HOH A 448  HOH A 467  HOH A 551                    
SITE     5 AC5 21 HOH A 575  HOH A 597  HOH A 615  HOH A 625                    
SITE     6 AC5 21 HOH A 646                                                     
SITE     1 AC6  4 LEU A 116  LYS A 120  GLN A 191  CYS A 192                    
SITE     1 AC7 16 ARG A 126  ARG A 127  ARG B  21  CYS B 146                    
SITE     2 AC7 16 HIS B 147  GLN B 165  ARG B 166  SER B 167                    
SITE     3 AC7 16 CYS B 168  ASP B 169  ASN B 177  HIS B 207                    
SITE     4 AC7 16 TYR B 209  THG B 305  HOH B 439  HOH B 509                    
SITE     1 AC8 13 ILE B  79  TRP B  83  LEU B 143  ASP B 169                    
SITE     2 AC8 13 GLY B 173  VAL B 262  ALA B 263  UMP B 304                    
SITE     3 AC8 13 HOH B 461  HOH B 480  HOH B 569  HOH B 737                    
SITE     4 AC8 13 HOH B 749                                                     
SITE     1 AC9  8 PRO B 224  ARG B 225  PRO B 226  ARG B 234                    
SITE     2 AC9  8 ARG B 243  GLU B 245  ASP B 246  HOH B 735                    
SITE     1 BC1  4 GLN A   9  GLN A  64  ARG A  99  HOH A 599                    
CRYST1  125.296  125.296   66.771  90.00  90.00 120.00 P 63         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      0.007981  0.004608  0.000000        0.00000                         
SCALE2      0.000000  0.009216  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014977        0.00000                         
HETATM    1  N   CXM A   1      97.088   8.776  20.262  1.00 17.71           N  
HETATM    2  CA  CXM A   1      95.954   9.708  20.534  1.00 18.17           C  
HETATM    3  CB  CXM A   1      95.785  10.711  19.389  1.00 19.76           C  
HETATM    4  CG  CXM A   1      96.987  11.588  19.142  1.00 21.07           C  
HETATM    5  SD  CXM A   1      96.706  12.742  17.778  1.00 20.95           S  
HETATM    6  CE  CXM A   1      97.138  11.711  16.353  1.00 18.83           C  
HETATM    7  C   CXM A   1      94.670   8.909  20.665  1.00 19.38           C  
HETATM    8  O   CXM A   1      94.505   7.869  20.025  1.00 16.75           O  
HETATM    9  CN  CXM A   1      98.344   8.915  20.730  1.00 18.78           C  
HETATM   10  ON1 CXM A   1      99.173   8.011  20.483  1.00 17.90           O  
HETATM   11  ON2 CXM A   1      98.661   9.947  21.360  1.00 18.17           O