PDB Short entry for 1RB0 HEADER TRANSFERASE 31-OCT-03 1RB0 TITLE CRYSTAL STRUCTURE OF A BINARY COMPLEX OF E. COLI HPPK WITH 6- TITLE 2 HYDROXYMETHYLPTERIN-DIPHOSPHATE AT 1.35 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 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, CATALYTIC MECHANISM, KEYWDS 2 FOLATE, HPPK, PTERIN, 6-HYDROXYMETHYL-7, 8-DIHYDROPTERIN, 6- KEYWDS 3 HYDROXYMETHYLPTERIN, TERNARY COMPLEX, BINARY COMPLEX, SUBSTRATE KEYWDS 4 SPECIFICITY, PRODUCT RELEASE, ANTIMICROBIAL AGENT, DRUG DESIGN, KEYWDS 5 TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.BLASZCZYK,X.JI REVDAT 5 30-AUG-23 1RB0 1 AUTHOR JRNL REVDAT 4 23-AUG-23 1RB0 1 REMARK REVDAT 3 24-FEB-09 1RB0 1 VERSN REVDAT 2 29-MAR-05 1RB0 1 JRNL REVDAT 1 09-NOV-04 1RB0 0 JRNL AUTH J.BLASZCZYK,G.SHI,Y.LI,H.YAN,X.JI JRNL TITL REACTION TRAJECTORY OF PYROPHOSPHORYL TRANSFER CATALYZED BY JRNL TITL 2 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN PYROPHOSPHOKINASE. JRNL REF STRUCTURE V. 12 467 2004 JRNL REFN ISSN 0969-2126 JRNL PMID 15016362 JRNL DOI 10.1016/J.STR.2004.02.003 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 DOI 10.1016/S0969-2126(00)00502-5 REMARK 2 REMARK 2 RESOLUTION. 1.35 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) : 1.35 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 4.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 94.7 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) : 0.159 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.200 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 4.946 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 1297 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 26223 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)) : 0.130 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.175 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.141 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 1048 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 20385 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1267 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 22 REMARK 3 SOLVENT ATOMS : 294 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 1581.0 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 0.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 16 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 12488 REMARK 3 NUMBER OF RESTRAINTS : 16542 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.012 REMARK 3 ANGLE DISTANCES (A) : 0.042 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.032 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.099 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.071 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.157 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.003 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.057 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.077 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: LEAST-SQUARES ANISOTROPIC REFINEMENT REMARK 3 USING THE KONNERT-HENDRICKSON CONJUGATE-GRADIENT ALGORITHM REMARK 4 REMARK 4 1RB0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-NOV-03. REMARK 100 THE DEPOSITION ID IS D_1000020630. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-OCT-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.0 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) : 0.97793 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 : 27560 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.350 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 (%) : 99.4 REMARK 200 DATA REDUNDANCY : 3.790 REMARK 200 R MERGE (I) : 0.08200 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 15.4146 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.35 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.40 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.4 REMARK 200 DATA REDUNDANCY IN SHELL : 3.42 REMARK 200 R MERGE FOR SHELL (I) : 0.56700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.252 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 1Q0N REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 34.60 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.96 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG4000, ACETATE, SODIUM AZIDE, PH REMARK 280 8.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 292.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -X+1/2,Y+1/2,-Z REMARK 290 4555 X+1/2,-Y+1/2,-Z REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 25.79550 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.75950 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.79550 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 33.75950 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 298 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 479 LIES ON A SPECIAL POSITION. 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 TYR A 4 CB - CG - CD1 ANGL. DEV. = -4.4 DEGREES REMARK 500 TYR A 40 CB - CG - CD2 ANGL. DEV. = 3.6 DEGREES REMARK 500 TYR A 40 CB - CG - CD1 ANGL. DEV. = -6.2 DEGREES REMARK 500 ARG A 82 NE - CZ - NH1 ANGL. DEV. = -4.2 DEGREES REMARK 500 ARG A 121 NE - CZ - NH2 ANGL. DEV. = -3.5 DEGREES REMARK 500 PHE A 123 CB - CG - CD2 ANGL. DEV. = -4.8 DEGREES REMARK 500 ARG A 144 CD - NE - CZ ANGL. DEV. = 8.8 DEGREES REMARK 500 ARG A 144 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 ARG A 144 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 ARG A 144 NE - CZ - NH2 ANGL. DEV. = 3.9 DEGREES REMARK 500 THR A 149 CA - CB - CG2 ANGL. DEV. = 11.4 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 PRO A 47 -149.93 -66.09 REMARK 500 ASP A 49 -37.33 62.16 REMARK 500 GLN A 50 -82.50 112.19 REMARK 500 ALA A 86 -9.92 76.04 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 GLN A 50 PRO A 51 -145.73 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HH2 A 181 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 HPPKFROM E.COLI REMARK 900 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: 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. DBREF 1RB0 A 1 158 UNP P26281 HPPK_ECOLI 1 158 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 TRP 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 HH2 A 181 22 HETNAM HH2 6-HYDROXYMETHYLPTERIN-DIPHOSPHATE HETSYN HH2 [PTERIN-6-YL METHANYL]-PHOSPHONOPHOSPHATE FORMUL 2 HH2 C7 H9 N5 O8 P2 FORMUL 3 HOH *294(H2 O) HELIX 1 1 PRO A 14 ILE A 28 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 ALA A 151 1 10 SHEET 1 A 4 SER A 31 VAL A 36 0 SHEET 2 A 4 TYR A 53 THR A 62 -1 O GLU A 61 N HIS A 32 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 MET A 99 N TYR A 4 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 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 CISPEP 1 VAL A 113 PRO A 114 0 -1.90 SITE 1 AC1 21 THR A 42 PRO A 43 PRO A 44 LEU A 45 SITE 2 AC1 21 TYR A 53 ASN A 55 ARG A 88 TRP A 89 SITE 3 AC1 21 GLY A 90 PRO A 91 ASP A 95 TYR A 116 SITE 4 AC1 21 ARG A 121 PHE A 123 HOH A 246 HOH A 316 SITE 5 AC1 21 HOH A 342 HOH A 358 HOH A 399 HOH A 402 SITE 6 AC1 21 HOH A 410 CRYST1 51.591 67.519 35.165 90.00 90.00 90.00 P 21 21 2 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 0.019383 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014811 0.000000 0.00000 SCALE3 0.000000 0.000000 0.028437 0.00000