HEADER    TRANSFERASE                             10-JUN-04   1TMJ              
TITLE     CRYSTAL STRUCTURE OF E.COLI APO-HPPK(W89A) AT 1.45 ANGSTROM RESOLUTION
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 2-AMINO-4-HYDROXY-6-HYDROXYMETHYLDIHYDROPTERIDINE          
COMPND   3 PYROPHOSPHOKINASE;                                                   
COMPND   4 CHAIN: A;                                                            
COMPND   5 SYNONYM: 7,8-DIHYDRO-6-HYDROXYMETHYLPTERIN-PYROPHOSPHOKINASE, HPPK,  
COMPND   6 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN PYROPHOSPHOKINASE, PPPK;           
COMPND   7 EC: 2.7.6.3;                                                         
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 562;                                                 
SOURCE   4 GENE: FOLK, B0142;                                                   
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET17B                                    
KEYWDS    PYROPHOSPHOKINASE, PYROPHOSPHORYL TRANSFER, FOLATE, HPPK, 6-          
KEYWDS   2 HYDROXYMETHYLPTERIN, 6-HYDROXYMETHYL-7, 8-DIHYDROPTERIN,             
KEYWDS   3 ANTIMICROBIAL AGENT, DRUG DESIGN, POINT MUTANT, STRUCTURAL           
KEYWDS   4 MUTAGENESIS, TRANSFERASE                                             
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.BLASZCZYK,X.JI                                                      
REVDAT   5   30-AUG-23 1TMJ    1       AUTHOR JRNL                              
REVDAT   4   23-AUG-23 1TMJ    1       REMARK                                   
REVDAT   3   27-OCT-21 1TMJ    1       REMARK SEQADV LINK                       
REVDAT   2   24-FEB-09 1TMJ    1       VERSN                                    
REVDAT   1   21-JUN-05 1TMJ    0                                                
JRNL        AUTH   Y.LI,J.BLASZCZYK,Y.WU,G.SHI,X.JI,H.YAN                       
JRNL        TITL   IS THE CRITICAL ROLE OF LOOP 3 OF ESCHERICHIA COLI           
JRNL        TITL 2 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN PYROPHOSPHOKINASE IN       
JRNL        TITL 3 CATALYSIS DUE TO LOOP-3 RESIDUES ARGININE-84 AND             
JRNL        TITL 4 TRYPTOPHAN-89? SITE-DIRECTED MUTAGENESIS, BIOCHEMICAL, AND   
JRNL        TITL 5 CRYSTALLOGRAPHIC STUDIES.                                    
JRNL        REF    BIOCHEMISTRY                  V.  44  8590 2005              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   15952765                                                     
JRNL        DOI    10.1021/BI0503495                                            
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   B.XIAO,G.SHI,X.CHEN,H.YAN,X.JI                               
REMARK   1  TITL   CRYSTAL STRUCTURE OF 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN       
REMARK   1  TITL 2 PYROPHOSPHOKINASE, A POTENTIAL TARGET FOR THE DEVELOPMENT OF 
REMARK   1  TITL 3 NOVEL ANTIMICROBIAL AGENTS                                   
REMARK   1  REF    STRUCTURE                     V.   7   489 1999              
REMARK   1  REFN                   ISSN 0969-2126                               
REMARK   1  PMID   10378268                                                     
REMARK   1  DOI    10.1016/S0969-2126(99)80065-3                                
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   J.BLASZCZYK,G.SHI,H.YAN,X.JI                                 
REMARK   1  TITL   CATALYTIC CENTER ASSEMBLY OF HPPK AS REVEALED BY THE CRYSTAL 
REMARK   1  TITL 2 STRUCTURE OF A TERNARY COMPLEX AT 1.25 A RESOLUTION          
REMARK   1  REF    STRUCTURE                     V.   8  1049 2000              
REMARK   1  REFN                   ISSN 0969-2126                               
REMARK   1  PMID   11080626                                                     
REMARK   1  DOI    10.1016/S0969-2126(00)00502-5                                
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   G.SHI,J.BLASZCZYK,X.JI,H.YAN                                 
REMARK   1  TITL   BISUBSTRATE ANALOGUE INHIBITORS OF                           
REMARK   1  TITL 2 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN PYROPHOSPHOKINASE:         
REMARK   1  TITL 3 SYNTHESIS AND BIOCHEMICAL AND CRYSTALLOGRAPHIC STUDIES       
REMARK   1  REF    J.MED.CHEM.                   V.  44  1364 2001              
REMARK   1  REFN                   ISSN 0022-2623                               
REMARK   1  PMID   11311059                                                     
REMARK   1  DOI    10.1021/JM0004493                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.45 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : SHELXL-97                                            
REMARK   3   AUTHORS     : G.M.SHELDRICK                                        
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.45                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 30.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 4.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 92.7                           
REMARK   3   CROSS-VALIDATION METHOD           : FREE R                         
REMARK   3   FREE R VALUE TEST SET SELECTION   : RANDOM                         
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (NO CUTOFF).                         
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                   
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : 0.155                  
REMARK   3   FREE R VALUE                  (NO CUTOFF) : 0.174                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.350                  
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : 1188                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : 22205                  
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F).                     
REMARK   3   R VALUE   (WORKING + TEST SET, F>4SIG(F)) : NULL                   
REMARK   3   R VALUE          (WORKING SET, F>4SIG(F)) : 0.131                  
REMARK   3   FREE R VALUE                  (F>4SIG(F)) : 0.151                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.256                  
REMARK   3   FREE R VALUE TEST SET COUNT   (F>4SIG(F)) : 901                    
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (F>4SIG(F)) : 17141                  
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS      : 1258                                          
REMARK   3   NUCLEIC ACID ATOMS : 0                                             
REMARK   3   HETEROGEN ATOMS    : 3                                             
REMARK   3   SOLVENT ATOMS      : 251                                           
REMARK   3                                                                      
REMARK   3  MODEL REFINEMENT.                                                   
REMARK   3   OCCUPANCY SUM OF NON-HYDROGEN ATOMS      : 1513.0                  
REMARK   3   OCCUPANCY SUM OF HYDROGEN ATOMS          : 1120.0                  
REMARK   3   NUMBER OF DISCRETELY DISORDERED RESIDUES : 16                      
REMARK   3   NUMBER OF LEAST-SQUARES PARAMETERS       : 11649                   
REMARK   3   NUMBER OF RESTRAINTS                     : 15763                   
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM RESTRAINT TARGET VALUES.                        
REMARK   3   BOND LENGTHS                         (A) : 0.014                   
REMARK   3   ANGLE DISTANCES                      (A) : 0.032                   
REMARK   3   SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000                   
REMARK   3   DISTANCES FROM RESTRAINT PLANES      (A) : 0.031                   
REMARK   3   ZERO CHIRAL VOLUMES               (A**3) : 0.071                   
REMARK   3   NON-ZERO CHIRAL VOLUMES           (A**3) : 0.082                   
REMARK   3   ANTI-BUMPING DISTANCE RESTRAINTS     (A) : 0.414                   
REMARK   3   RIGID-BOND ADP COMPONENTS         (A**2) : 0.003                   
REMARK   3   SIMILAR ADP COMPONENTS            (A**2) : 0.065                   
REMARK   3   APPROXIMATELY ISOTROPIC ADPS      (A**2) : 0.080                   
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED: MOEWS & KRETSINGER, J.MOL.BIOL. 91 (1975) 201-228     
REMARK   3                                                                      
REMARK   3  STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER                      
REMARK   3   SPECIAL CASE: NULL                                                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: FULL MATRIX LEAST-SQUARES PROCEDURE,      
REMARK   3  WITH BLOCK OF PARAMETERS SET FOR EACH CYCLE OF ANISOTROPIC          
REMARK   3  REFINEMENT                                                          
REMARK   4                                                                      
REMARK   4 1TMJ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-JUL-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000022770.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 05-JUN-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 8.4                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X9B                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.00674                            
REMARK 200  MONOCHROMATOR                  : SILICON 111                        
REMARK 200  OPTICS                         : MIRROR                             
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 23408                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.450                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.7                               
REMARK 200  DATA REDUNDANCY                : 4.163                              
REMARK 200  R MERGE                    (I) : 0.06000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 19.3682                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.45                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.50                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 95.8                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.58                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.63000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.864                              
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 1HKA                                          
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 28.60                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.92                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG4000, MAGNESIUM CHLORIDE, ACETATE,    
REMARK 280  TRIS-HCL, IMIDAZOLE, PH 8.4, VAPOR DIFFUSION, HANGING DROP,         
REMARK 280  TEMPERATURE 292.0K                                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,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       23.28500            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ARG A  75   NH1 -  CZ  -  NH2 ANGL. DEV. =  -7.1 DEGREES          
REMARK 500    ARG A  75   NE  -  CZ  -  NH2 ANGL. DEV. =   5.6 DEGREES          
REMARK 500    ARG A  88   NE  -  CZ  -  NH2 ANGL. DEV. =   3.7 DEGREES          
REMARK 500    ARG A  92   NE  -  CZ  -  NH1 ANGL. DEV. =   3.3 DEGREES          
REMARK 500    ARG A 150   NE  -  CZ  -  NH1 ANGL. DEV. =   4.9 DEGREES          
REMARK 500    ARG A 150   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.2 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    ALA A  12     -112.95     45.38                                   
REMARK 500    ALA A  12      142.87    -13.88                                   
REMARK 500    SER A  13       71.34     48.00                                   
REMARK 500    GLN A  50      178.35    -55.41                                   
REMARK 500    ARG A  82     -120.11     78.66                                   
REMARK 500    VAL A  83      -26.19     51.13                                   
REMARK 500    ALA A  86      106.80    171.50                                   
REMARK 500    GLU A  87     -130.07   -109.46                                   
REMARK 500    ALA A  89      -29.58    108.04                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    VAL A  83        -11.13                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 161  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  95   OD1                                                    
REMARK 620 2 ASP A  97   OD1  90.5                                              
REMARK 620 3 HOH A 215   O    82.0  86.4                                        
REMARK 620 4 HOH A 257   O    91.5 165.0  79.2                                  
REMARK 620 5 HOH A 258   O    90.3 101.8 168.9  93.0                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 162  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  95   OD2                                                    
REMARK 620 2 ASP A  97   OD2  83.4                                              
REMARK 620 3 HOH A 244   O   156.8  98.7                                        
REMARK 620 4 HOH A 246   O    95.5  88.1 107.6                                  
REMARK 620 5 HOH A 258   O    88.9  95.3  68.0 174.8                            
REMARK 620 6 HOH A 260   O    90.6 173.3  85.5  95.6  81.4                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 161                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 162                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 163                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1HKA   RELATED DB: PDB                                   
REMARK 900 1HKA IS THE CRYSTAL STRUCTURE OF APO-HPPK FROM E.COLI.               
REMARK 900 RELATED ID: 1EQM   RELATED DB: PDB                                   
REMARK 900 1EQM IS THE CRYSTAL STRUCTURE OF BINARY COMPLEX OF HPPK FROM E.COLI  
REMARK 900 WITH MGADP.                                                          
REMARK 900 RELATED ID: 1EQ0   RELATED DB: PDB                                   
REMARK 900 1EQ0 IS THE SOLUTION STRUCTURE OF BINARY COMPLEX OF HPPK FROM        
REMARK 900 E.COLI WITH MGAMPPCP.                                                
REMARK 900 RELATED ID: 1Q0N   RELATED DB: PDB                                   
REMARK 900 1Q0N IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPPK FROM        
REMARK 900 E.COLI WITH MGAMPCPP AND 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN.          
REMARK 900 RELATED ID: 1EX8   RELATED DB: PDB                                   
REMARK 900 1EX8 IS THE CRYSTAL STRUCTURE OF HPPK FROM E.COLI COMPLEXED WITH     
REMARK 900 HP4A, A TWO-SUBSTRATE-MIMICKING INHIBITOR.                           
REMARK 900 RELATED ID: 1CBK   RELATED DB: PDB                                   
REMARK 900 1CBK IS THE CRYSTAL STRUCTURE OF BINARY COMPLEX OF HPPK FROM         
REMARK 900 H.INFLUENZAE WITH A 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN ANALOG.        
REMARK 900 RELATED ID: 1DY3   RELATED DB: PDB                                   
REMARK 900 1DY3 IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPPK FROM        
REMARK 900 E.COLI WITH MGATP AND A 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN ANALOG.    
REMARK 900 RELATED ID: 1F9Y   RELATED DB: PDB                                   
REMARK 900 1F9Y IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPPK FROM        
REMARK 900 E.COLI WITH MGAMPCPP AND 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN ANALOGS.  
REMARK 900 RELATED ID: 1F9H   RELATED DB: PDB                                   
REMARK 900 1F9H IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPPK(R92A) FROM  
REMARK 900 E.COLI WITH MGAMPCPP AND 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN.          
REMARK 900 RELATED ID: 1G4C   RELATED DB: PDB                                   
REMARK 900 1G4C IS THE CRYSTAL STRUCTURE OF A COMPLEX OF HPPK(R92A) FROM        
REMARK 900 E.COLI WITH MG2+.                                                    
REMARK 900 RELATED ID: 1HQ2   RELATED DB: PDB                                   
REMARK 900 1HQ2 IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPPK(R82A) FROM  
REMARK 900 E.COLI WITH MGAMPCPP AND 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN.          
REMARK 900 RELATED ID: 1IM6   RELATED DB: PDB                                   
REMARK 900 1IM6 IS THE CRYSTAL STRUCTURE OF APO-HPPK(R82A) FROM E.COLI.         
REMARK 900 RELATED ID: 1KBR   RELATED DB: PDB                                   
REMARK 900 1KBR IS THE CRYSTAL STRUCTURE OF APO-HPPK(R92A) FROM E.COLI.         
REMARK 900 RELATED ID: 1RU2   RELATED DB: PDB                                   
REMARK 900 1RU2 IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPPK(V83G/DEL84- 
REMARK 900 89) FROM E.COLI WITH MGAMPCPP AND 6-HYDROXYMETHYLPTERIN              
REMARK 900 (ORTHORHOMBIC FORM).                                                 
REMARK 900 RELATED ID: 1RU1   RELATED DB: PDB                                   
REMARK 900 1RU1 IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPPK(V83G/DEL84- 
REMARK 900 89) FROM E.COLI WITH MGAMPCPP AND 6-HYDROXYMETHYLPTERIN (MONOCLINIC  
REMARK 900 FORM).                                                               
REMARK 900 RELATED ID: 1RTZ   RELATED DB: PDB                                   
REMARK 900 1RTZ IS THE CRYSTAL STRUCTURE OF APO-HPPK(V83G/DEL84-89) FROM        
REMARK 900 E.COLI.                                                              
REMARK 900 RELATED ID: 1RB0   RELATED DB: PDB                                   
REMARK 900 1RB0 IS THE CRYSTAL STRUCTURE OF BINARY COMPLEX OF HPPK FROM E.COLI  
REMARK 900 WITH 6-HYDROXYMETHYLPTERIN-DIPHOSPHATE.                              
REMARK 900 RELATED ID: 1TMM   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF TERNARY COMPLEX OF E.COLI HPPK(W89A) WITH       
REMARK 900 MGAMPCPP AND 6-HYDROXYMETHYLPTERIN                                   
DBREF  1TMJ A    1   158  UNP    P26281   HPPK_ECOLI       1    158             
SEQADV 1TMJ ALA A   89  UNP  P26281    TRP    89 ENGINEERED MUTATION            
SEQRES   1 A  158  THR VAL ALA TYR ILE ALA ILE GLY SER ASN LEU ALA SER          
SEQRES   2 A  158  PRO LEU GLU GLN VAL ASN ALA ALA LEU LYS ALA LEU GLY          
SEQRES   3 A  158  ASP ILE PRO GLU SER HIS ILE LEU THR VAL SER SER PHE          
SEQRES   4 A  158  TYR ARG THR PRO PRO LEU GLY PRO GLN ASP GLN PRO ASP          
SEQRES   5 A  158  TYR LEU ASN ALA ALA VAL ALA LEU GLU THR SER LEU ALA          
SEQRES   6 A  158  PRO GLU GLU LEU LEU ASN HIS THR GLN ARG ILE GLU LEU          
SEQRES   7 A  158  GLN GLN GLY ARG VAL ARG LYS ALA GLU ARG ALA GLY PRO          
SEQRES   8 A  158  ARG THR LEU ASP LEU ASP ILE MET LEU PHE GLY ASN GLU          
SEQRES   9 A  158  VAL ILE ASN THR GLU ARG LEU THR VAL PRO HIS TYR ASP          
SEQRES  10 A  158  MET LYS ASN ARG GLY PHE MET LEU TRP PRO LEU PHE GLU          
SEQRES  11 A  158  ILE ALA PRO GLU LEU VAL PHE PRO ASP GLY GLU MET LEU          
SEQRES  12 A  158  ARG GLN ILE LEU HIS THR ARG ALA PHE ASP LYS LEU ASN          
SEQRES  13 A  158  LYS TRP                                                      
HET     MG  A 161       1                                                       
HET     MG  A 162       1                                                       
HET     CL  A 163       1                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM      CL CHLORIDE ION                                                     
FORMUL   2   MG    2(MG 2+)                                                     
FORMUL   4   CL    CL 1-                                                        
FORMUL   5  HOH   *251(H2 O)                                                    
HELIX    1   1 SER A   13  ASP A   27  1                                  15    
HELIX    2   2 ALA A   65  GLY A   81  1                                  17    
HELIX    3   3 ASP A  117  ASN A  120  5                                   4    
HELIX    4   4 ARG A  121  ALA A  132  1                                  12    
HELIX    5   5 MET A  142  ARG A  150  1                                   9    
SHEET    1   A 4 SER A  31  VAL A  36  0                                        
SHEET    2   A 4 TYR A  53  THR A  62 -1  O  ALA A  59   N  LEU A  34           
SHEET    3   A 4 VAL A   2  SER A   9 -1  N  ALA A   3   O  LEU A  60           
SHEET    4   A 4 LEU A  94  PHE A 101 -1  O  ASP A  97   N  ALA A   6           
SHEET    1   B 4 SER A  31  VAL A  36  0                                        
SHEET    2   B 4 TYR A  53  THR A  62 -1  O  ALA A  59   N  LEU A  34           
SHEET    3   B 4 TYR A  40  THR A  42 -1  N  THR A  42   O  TYR A  53           
SHEET    4   B 4 ASN A 156  LYS A 157 -1  O  ASN A 156   N  ARG A  41           
SHEET    1   C 2 ILE A 106  ASN A 107  0                                        
SHEET    2   C 2 THR A 112  VAL A 113 -1  O  VAL A 113   N  ILE A 106           
LINK         OD1 ASP A  95                MG    MG A 161     1555   1555  2.12  
LINK         OD2 ASP A  95                MG    MG A 162     1555   1555  1.94  
LINK         OD1 ASP A  97                MG    MG A 161     1555   1555  2.04  
LINK         OD2 ASP A  97                MG    MG A 162     1555   1555  2.32  
LINK        MG    MG A 161                 O   HOH A 215     1555   1555  2.07  
LINK        MG    MG A 161                 O   HOH A 257     1555   1555  2.03  
LINK        MG    MG A 161                 O   HOH A 258     1555   1555  1.88  
LINK        MG    MG A 162                 O   HOH A 244     1555   1555  2.39  
LINK        MG    MG A 162                 O   HOH A 246     1555   1555  2.09  
LINK        MG    MG A 162                 O   HOH A 258     1555   1555  1.96  
LINK        MG    MG A 162                 O   HOH A 260     1555   1555  2.10  
CISPEP   1 GLY A   90    PRO A   91          0        -0.88                     
CISPEP   2 VAL A  113    PRO A  114          0        -4.89                     
SITE     1 AC1  6 ASP A  95  ASP A  97   MG A 162  HOH A 215                    
SITE     2 AC1  6 HOH A 257  HOH A 258                                          
SITE     1 AC2  7 ASP A  95  ASP A  97   MG A 161  HOH A 244                    
SITE     2 AC2  7 HOH A 246  HOH A 258  HOH A 260                               
SITE     1 AC3  6 PRO A 114  LYS A 119  PHE A 137  PRO A 138                    
SITE     2 AC3  6 ASP A 139  HOH A 337                                          
CRYST1   36.132   46.570   43.365  90.00 110.36  90.00 P 1 21 1      2          
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      0.027676  0.000000  0.010271        0.00000                         
SCALE2      0.000000  0.021473  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.024597        0.00000