HEADER    TRANSFERASE                             10-DEC-03   1RTZ              
TITLE     CRYSTAL STRUCTURE OF E.COLI APO-HPPK(V83G/DEL84-89) AT 1.33 ANGSTROM  
TITLE    2 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, PTERIN, 6-  
KEYWDS   2 HYDROXYMETHYL-7, 8-DIHYDROPTERIN, ANTIMICROBIAL AGENT, DRUG DESIGN,  
KEYWDS   3 DELETION MUTANT, TRANSFERASE                                         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.BLASZCZYK,X.JI                                                      
REVDAT   6   30-AUG-23 1RTZ    1       AUTHOR JRNL                              
REVDAT   5   23-AUG-23 1RTZ    1       REMARK                                   
REVDAT   4   27-OCT-21 1RTZ    1       REMARK SEQADV LINK                       
REVDAT   3   13-JUL-11 1RTZ    1       VERSN                                    
REVDAT   2   24-FEB-09 1RTZ    1       VERSN                                    
REVDAT   1   24-FEB-04 1RTZ    0                                                
JRNL        AUTH   J.BLASZCZYK,Y.LI,Y.WU,G.SHI,X.JI,H.YAN                       
JRNL        TITL   ESSENTIAL ROLES OF A DYNAMIC LOOP IN THE CATALYSIS OF        
JRNL        TITL 2 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN PYROPHOSPHOKINASE.         
JRNL        REF    BIOCHEMISTRY                  V.  43  1469 2004              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   14769023                                                     
JRNL        DOI    10.1021/BI036053L                                            
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  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  DOI    10.1021/JM0004493                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.33 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) : 1.33                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 18.60                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 4.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 92.2                           
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) : 0.133                  
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : 0.133                  
REMARK   3   FREE R VALUE                  (NO CUTOFF) : 0.167                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.291                  
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : 1541                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : 29125                  
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)) : 0.124                  
REMARK   3   FREE R VALUE                  (F>4SIG(F)) : 0.157                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.353                  
REMARK   3   FREE R VALUE TEST SET COUNT   (F>4SIG(F)) : 1377                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (F>4SIG(F)) : 25725                  
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS      : 1205                                          
REMARK   3   NUCLEIC ACID ATOMS : 0                                             
REMARK   3   HETEROGEN ATOMS    : 18                                            
REMARK   3   SOLVENT ATOMS      : 210                                           
REMARK   3                                                                      
REMARK   3  MODEL REFINEMENT.                                                   
REMARK   3   OCCUPANCY SUM OF NON-HYDROGEN ATOMS      : 1422.0                  
REMARK   3   OCCUPANCY SUM OF HYDROGEN ATOMS          : 1157.5                  
REMARK   3   NUMBER OF DISCRETELY DISORDERED RESIDUES : 22                      
REMARK   3   NUMBER OF LEAST-SQUARES PARAMETERS       : 12199                   
REMARK   3   NUMBER OF RESTRAINTS                     : 16995                   
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM RESTRAINT TARGET VALUES.                        
REMARK   3   BOND LENGTHS                         (A) : 0.013                   
REMARK   3   ANGLE DISTANCES                      (A) : 0.033                   
REMARK   3   SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000                   
REMARK   3   DISTANCES FROM RESTRAINT PLANES      (A) : 0.028                   
REMARK   3   ZERO CHIRAL VOLUMES               (A**3) : 0.063                   
REMARK   3   NON-ZERO CHIRAL VOLUMES           (A**3) : 0.108                   
REMARK   3   ANTI-BUMPING DISTANCE RESTRAINTS     (A) : 0.332                   
REMARK   3   RIGID-BOND ADP COMPONENTS         (A**2) : 0.004                   
REMARK   3   SIMILAR ADP COMPONENTS            (A**2) : 0.065                   
REMARK   3   APPROXIMATELY ISOTROPIC ADPS      (A**2) : 0.091                   
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 & 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. WATERS 405, 409, 385, AND 399 HAVE OCCUPANCY FACTOR     
REMARK   3  0.50 AND HAVE BEEN ASSIGNED FOR ONLY ONE FROM TWO CONFORMATIONS     
REMARK   3  (50 %) OF DISORDERED PROTEIN SIDE CHAINS. CONTACTS LISTED IN        
REMARK   3  REMARK 500 APPEAR BETWEEN THESE WATERS AND THE SECOND 50 % ("       
REMARK   3  REMAINED") CONFORMATIONS OF THESE DISORDERED RESIDUES (THESE        
REMARK   3  WATERS ARE NOT ASSIGNED FOR THIS "SECOND" CONFORMATION OF           
REMARK   3  DISORDERED RESIDUES).                                               
REMARK   4                                                                      
REMARK   4 1RTZ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-DEC-03.                  
REMARK 100 THE DEPOSITION ID IS D_1000021034.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-JUL-99                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 8.50                               
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) : 0.92000                            
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   : 30708                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.330                              
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     (%) : 97.1                               
REMARK 200  DATA REDUNDANCY                : 10.64                              
REMARK 200  R MERGE                    (I) : 0.08300                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 26.7531                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.33                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.38                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 95.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 8.66                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.48100                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 5.309                              
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   (%): 31.40                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.96                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: MAGNESIUM CHLORIDE, TRIS-HCL, ACETATE,   
REMARK 280  GLYCEROL, PH 8.50, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE       
REMARK 280  292.0K                                                              
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
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       20.63300            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       38.94800            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       20.84250            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       38.94800            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       20.63300            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       20.84250            
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: 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    GLU A  68   OE1 -  CD  -  OE2 ANGL. DEV. =  -8.0 DEGREES          
REMARK 500    GLU A  68   CG  -  CD  -  OE1 ANGL. DEV. =  12.7 DEGREES          
REMARK 500    HIS A  72   CG  -  ND1 -  CE1 ANGL. DEV. =  10.3 DEGREES          
REMARK 500    HIS A  72   ND1 -  CE1 -  NE2 ANGL. DEV. =  -8.2 DEGREES          
REMARK 500    ARG A  75   NH1 -  CZ  -  NH2 ANGL. DEV. =  -7.0 DEGREES          
REMARK 500    ARG A  75   NE  -  CZ  -  NH2 ANGL. DEV. =   9.0 DEGREES          
REMARK 500    ARG A  82   NE  -  CZ  -  NH1 ANGL. DEV. =  -3.8 DEGREES          
REMARK 500    GLU A 109   N   -  CA  -  CB  ANGL. DEV. = -11.2 DEGREES          
REMARK 500    ARG A 144   CD  -  NE  -  CZ  ANGL. DEV. =  11.6 DEGREES          
REMARK 500    ARG A 144   CD  -  NE  -  CZ  ANGL. DEV. =  13.6 DEGREES          
REMARK 500    ARG A 150   NE  -  CZ  -  NH2 ANGL. DEV. =   3.5 DEGREES          
REMARK 500    ARG A 150   NE  -  CZ  -  NH2 ANGL. DEV. =   3.7 DEGREES          
REMARK 500    ALA A 151   N   -  CA  -  CB  ANGL. DEV. =  -9.5 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    ARG A  92       -5.56     85.59                                   
REMARK 500    ALA A 132       59.19   -145.28                                   
REMARK 500    ALA A 151      -99.33    -52.42                                   
REMARK 500    PHE A 152       89.97     60.95                                   
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 163  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY A  26   O                                                      
REMARK 620 2 SER A  31   O    86.2                                              
REMARK 620 3 HOH A 231   O    84.9 118.9                                        
REMARK 620 4 HOH A 247   O    85.5  75.9 161.7                                  
REMARK 620 5 HOH A 319   O    86.0 164.3  73.8  89.9                            
REMARK 620 6 HOH A 393   O   167.2  91.7  85.1 106.2  98.9                      
REMARK 620 N                    1     2     3     4     5                       
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 109.8                                              
REMARK 620 3 ASP A  97   OD2  79.2  41.6                                        
REMARK 620 4 GOL A 172   O1   88.8 154.7 163.7                                  
REMARK 620 5 HOH A 219   O    83.2  79.8 103.5  85.7                            
REMARK 620 6 HOH A 396   O    91.0 101.4  74.3  95.2 174.1                      
REMARK 620 7 HOH A 397   O   168.0  73.9 109.0  84.6  86.4  99.6                
REMARK 620 N                    1     2     3     4     5     6                 
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 GLU A 141   OE2                                                    
REMARK 620 2 HOH A 306   O    91.9                                              
REMARK 620 3 HOH A 390   O    77.9  86.3                                        
REMARK 620 4 HOH A 392   O    98.8  92.6 176.5                                  
REMARK 620 5 HOH A 401   O   161.4  82.4  84.1  99.1                            
REMARK 620 6 HOH A 402   O    95.4 172.6  96.0  85.5  90.9                      
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 MG A 163                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 164                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 165                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 166                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 171                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 172                 
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: 1HQ9   RELATED DB: PDB                                   
REMARK 900 1HQ9 IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPP FROM E.COLI  
REMARK 900 WITH AMP AND 6-HYDROXYMETHYLPTERIN-DIPHOSPHATE.K                     
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: 1RAO   RELATED DB: PDB                                   
REMARK 900 1RAO IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPPK FROM        
REMARK 900 E.COLI WITH AMP AND 6-HYDROXYMETHYLPTERIN-DIPHOSPHATE.               
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: 1RU1   RELATED DB: PDB                                   
REMARK 900 1RU1 IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPPK(V83G/DEL84- 
REMARK 900 89) DELETION MUTANT FROM E.COLI WITH MGAMPCPP AND 6-                 
REMARK 900 HYDROXYMETHYLPTERIN (MONOCLINIC FORM).                               
REMARK 900 RELATED ID: 1RU2   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF A TERNARY COMPLEX OF E.COLI HPPK(V83G/DEL84-89) 
REMARK 900 WITH MGAMPCPP AND 6-HYDROXYMETHYLPTERIN AT 1.48 ANGSTROM             
REMARK 900 RESOLUTION (ORTHORHOMBIC FORM)                                       
DBREF  1RTZ A    1   158  UNP    P26281   HPPK_ECOLI       1    158             
SEQADV 1RTZ GLY A   83  UNP  P26281    VAL    83 ENGINEERED MUTATION            
SEQADV 1RTZ     A       UNP  P26281    ARG    84 DELETION                       
SEQADV 1RTZ     A       UNP  P26281    LYS    85 DELETION                       
SEQADV 1RTZ     A       UNP  P26281    ALA    86 DELETION                       
SEQADV 1RTZ     A       UNP  P26281    GLU    87 DELETION                       
SEQADV 1RTZ     A       UNP  P26281    ARG    88 DELETION                       
SEQADV 1RTZ     A       UNP  P26281    TRP    89 DELETION                       
SEQRES   1 A  152  THR VAL ALA TYR ILE ALA ILE GLY SER ASN LEU ALA SER          
SEQRES   2 A  152  PRO LEU GLU GLN VAL ASN ALA ALA LEU LYS ALA LEU GLY          
SEQRES   3 A  152  ASP ILE PRO GLU SER HIS ILE LEU THR VAL SER SER PHE          
SEQRES   4 A  152  TYR ARG THR PRO PRO LEU GLY PRO GLN ASP GLN PRO ASP          
SEQRES   5 A  152  TYR LEU ASN ALA ALA VAL ALA LEU GLU THR SER LEU ALA          
SEQRES   6 A  152  PRO GLU GLU LEU LEU ASN HIS THR GLN ARG ILE GLU LEU          
SEQRES   7 A  152  GLN GLN GLY ARG GLY GLY PRO ARG THR LEU ASP LEU ASP          
SEQRES   8 A  152  ILE MET LEU PHE GLY ASN GLU VAL ILE ASN THR GLU ARG          
SEQRES   9 A  152  LEU THR VAL PRO HIS TYR ASP MET LYS ASN ARG GLY PHE          
SEQRES  10 A  152  MET LEU TRP PRO LEU PHE GLU ILE ALA PRO GLU LEU VAL          
SEQRES  11 A  152  PHE PRO ASP GLY GLU MET LEU ARG GLN ILE LEU HIS THR          
SEQRES  12 A  152  ARG ALA PHE ASP LYS LEU ASN LYS TRP                          
HET     MG  A 161       1                                                       
HET     MG  A 162       1                                                       
HET     MG  A 163       1                                                       
HET     CL  A 164       1                                                       
HET     CL  A 165       1                                                       
HET     CL  A 166       1                                                       
HET    GOL  A 171       9                                                       
HET    GOL  A 172       6                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM      CL CHLORIDE ION                                                     
HETNAM     GOL GLYCEROL                                                         
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   2   MG    3(MG 2+)                                                     
FORMUL   5   CL    3(CL 1-)                                                     
FORMUL   8  GOL    2(C3 H8 O3)                                                  
FORMUL  10  HOH   *210(H2 O)                                                    
HELIX    1   1 PRO A   14  ASP A   27  1                                  14    
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 3 SER A  31  VAL A  36  0                                        
SHEET    2   A 3 TYR A  53  THR A  62 -1  O  GLU A  61   N  HIS A  32           
SHEET    3   A 3 TYR A  40  THR A  42 -1  N  THR A  42   O  TYR A  53           
SHEET    1   B 4 SER A  31  VAL A  36  0                                        
SHEET    2   B 4 TYR A  53  THR A  62 -1  O  GLU A  61   N  HIS A  32           
SHEET    3   B 4 VAL A   2  SER A   9 -1  N  SER A   9   O  LEU A  54           
SHEET    4   B 4 ASP A  95  PHE A 101 -1  O  ASP A  97   N  ALA A   6           
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         O   GLY A  26                MG    MG A 163     1555   1555  2.36  
LINK         O   SER A  31                MG    MG A 163     1555   1555  2.49  
LINK         OD1BASP A  95                MG    MG A 161     1555   1555  1.89  
LINK         OD1BASP A  97                MG    MG A 161     1555   1555  2.30  
LINK         OD2AASP A  97                MG    MG A 161     1555   1555  2.33  
LINK         OE2BGLU A 141                MG    MG A 162     1555   1555  2.27  
LINK        MG    MG A 161                 O1  GOL A 172     1555   1555  1.98  
LINK        MG    MG A 161                 O   HOH A 219     1555   1555  2.10  
LINK        MG    MG A 161                 O   HOH A 396     1555   1555  2.03  
LINK        MG    MG A 161                 O   HOH A 397     1555   1555  2.05  
LINK        MG    MG A 162                 O   HOH A 306     1555   1555  2.16  
LINK        MG    MG A 162                 O   HOH A 390     1555   1555  2.11  
LINK        MG    MG A 162                 O   HOH A 392     1555   1555  2.32  
LINK        MG    MG A 162                 O   HOH A 401     1555   1555  2.14  
LINK        MG    MG A 162                 O   HOH A 402     1555   1555  2.08  
LINK        MG    MG A 163                 O   HOH A 231     1555   1555  2.42  
LINK        MG    MG A 163                 O   HOH A 247     1555   1555  2.13  
LINK        MG    MG A 163                 O   HOH A 319     1555   1555  2.50  
LINK        MG    MG A 163                 O   HOH A 393     1555   1555  2.25  
CISPEP   1 VAL A  113    PRO A  114          0         0.73                     
SITE     1 AC1  6 ASP A  95  ASP A  97  GOL A 172  HOH A 219                    
SITE     2 AC1  6 HOH A 396  HOH A 397                                          
SITE     1 AC2  6 GLU A 141  HOH A 306  HOH A 390  HOH A 392                    
SITE     2 AC2  6 HOH A 401  HOH A 402                                          
SITE     1 AC3  6 GLY A  26  SER A  31  HOH A 231  HOH A 247                    
SITE     2 AC3  6 HOH A 319  HOH A 393                                          
SITE     1 AC4  4 LYS A 119  PRO A 138  ASP A 139  HOH A 240                    
SITE     1 AC5  5 PHE A  39  GLN A  79  LYS A 157  HOH A 217                    
SITE     2 AC5  5 HOH A 228                                                     
SITE     1 AC6  6 ALA A  24  ARG A  75  HOH A 210  HOH A 211                    
SITE     2 AC6  6 HOH A 228  HOH A 250                                          
SITE     1 AC7  8 GLU A  30  SER A  31  HIS A  32  GLU A  61                    
SITE     2 AC7  8 SER A  63  GLU A 134  HOH A 269  HOH A 310                    
SITE     1 AC8  9 ASP A  95   MG A 161  HOH A 219  HOH A 255                    
SITE     2 AC8  9 HOH A 355  HOH A 371  HOH A 388  HOH A 396                    
SITE     3 AC8  9 HOH A 397                                                     
CRYST1   41.266   41.685   77.896  90.00  90.00  90.00 P 21 21 21    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      0.024233  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.023989  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012838        0.00000