PDB Short entry for 1RAO HEADER TRANSFERASE 31-OCT-03 1RAO TITLE CRYSTAL STRUCTURE OF A TERNARY COMPLEX OF E. COLI HPPK WITH AMP AND 6- TITLE 2 HYDROXYMETHYLPTERIN-DIPHOSPHATE AT 1.56 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, SUBSTRATE SPECIFICITY, PRODUCT KEYWDS 4 RELEASE, ANTIMICROBIAL AGENT, DRUG DESIGN, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.BLASZCZYK,X.JI REVDAT 4 30-AUG-23 1RAO 1 AUTHOR JRNL REVDAT 3 23-AUG-23 1RAO 1 REMARK REVDAT 2 24-FEB-09 1RAO 1 VERSN REVDAT 1 09-NOV-04 1RAO 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. 1.56 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) : 1.56 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 40.00 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) : 0.151 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.188 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 4.955 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 992 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 20020 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)) : 0.120 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.157 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.059 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 742 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 14668 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 : 45 REMARK 3 SOLVENT ATOMS : 240 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 1546.5 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 0.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 11 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 12983 REMARK 3 NUMBER OF RESTRAINTS : 16871 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 ANGLE DISTANCES (A) : 0.030 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.027 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.047 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.056 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.046 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.003 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.056 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.071 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: LEAST-SQUARES ANISOTROPIC REFINEMENT REMARK 3 USING THE KONNERT-HENDRICKSON CONJUGATE-GRADIENT ALGORITHM REMARK 4 REMARK 4 1RAO 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_1000020629. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-NOV-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.2 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54178 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : OSMIC MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 21012 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.560 REMARK 200 RESOLUTION RANGE LOW (A) : 40.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 200 DATA REDUNDANCY : 3.506 REMARK 200 R MERGE (I) : 0.06600 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 17.7407 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.56 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.62 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.7 REMARK 200 DATA REDUNDANCY IN SHELL : 3.32 REMARK 200 R MERGE FOR SHELL (I) : 0.62000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.492 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: 1QON REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 33.20 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.92 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG4000, ACETATE, GLYCEROL, PH 5.2, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 292.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z REMARK 290 4555 -X+1/2,Y+1/2,-Z REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 39.84450 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 26.45900 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 39.84450 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 26.45900 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 ARG A 84 NE - CZ - NH1 ANGL. DEV. = -4.0 DEGREES REMARK 500 GLU A 87 OE1 - CD - OE2 ANGL. DEV. = -8.3 DEGREES REMARK 500 ARG A 88 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 ARG A 144 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 ARG A 144 NE - CZ - NH2 ANGL. DEV. = -3.6 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 86 -102.90 58.19 REMARK 500 ASP A 117 13.28 -140.84 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 AMP A 171 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 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 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: 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. DBREF 1RAO 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 AMP A 171 29 HET HH2 A 181 31 HETNAM AMP ADENOSINE MONOPHOSPHATE HETNAM HH2 6-HYDROXYMETHYLPTERIN-DIPHOSPHATE HETSYN HH2 [PTERIN-6-YL METHANYL]-PHOSPHONOPHOSPHATE FORMUL 2 AMP C10 H14 N5 O7 P FORMUL 3 HH2 C7 H9 N5 O8 P2 FORMUL 4 HOH *240(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 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 ILE A 7 O ALA A 56 SHEET 4 A 4 LEU A 94 PHE A 101 -1 O ASP A 95 N GLY A 8 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 ARG A 82 ARG A 84 0 SHEET 2 C 2 TRP A 89 ARG A 92 -1 O GLY A 90 N VAL A 83 SHEET 1 D 2 ILE A 106 ASN A 107 0 SHEET 2 D 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 -7.69 SITE 1 AC1 15 LYS A 23 LEU A 70 GLN A 74 GLU A 77 SITE 2 AC1 15 ARG A 92 ASP A 97 ILE A 98 ARG A 110 SITE 3 AC1 15 LEU A 111 THR A 112 HIS A 148 HOH A 234 SITE 4 AC1 15 HOH A 243 HOH A 254 HOH A 399 SITE 1 AC2 14 THR A 42 PRO A 43 PRO A 44 LEU A 45 SITE 2 AC2 14 TYR A 53 ASN A 55 TYR A 116 ARG A 121 SITE 3 AC2 14 PHE A 123 HOH A 387 HOH A 391 HOH A 416 SITE 4 AC2 14 HOH A 417 HOH A 429 CRYST1 79.689 52.918 36.560 90.00 103.46 90.00 C 1 2 1 4 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 0.012549 0.000000 0.003003 0.00000 SCALE2 0.000000 0.018897 0.000000 0.00000 SCALE3 0.000000 0.000000 0.028125 0.00000