HEADER OXIDOREDUCTASE 28-JAN-02 1KW0 TITLE CATALYTIC DOMAIN OF HUMAN PHENYLALANINE HYDROXYLASE (FE(II)) IN TITLE 2 COMPLEX WITH TETRAHYDROBIOPTERIN AND THIENYLALANINE COMPND MOL_ID: 1; COMPND 2 MOLECULE: PHENYLALANINE-4-HYDROXYLASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: CATALYTIC DOMAIN (RESIDUES 103-427); COMPND 5 SYNONYM: PAH, PHE-4-MONOOXYGENASE; COMPND 6 EC: 1.14.16.1; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: PAH; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PMAL KEYWDS BASKET-ARRANGEMENT 13 ALPHA-HELICES AND 6 BETA-STRANDS, FERROUS IRON, KEYWDS 2 OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR O.A.ANDERSEN,T.FLATMARK,E.HOUGH REVDAT 4 16-AUG-23 1KW0 1 REMARK LINK REVDAT 3 11-OCT-17 1KW0 1 REMARK REVDAT 2 24-FEB-09 1KW0 1 VERSN REVDAT 1 28-JAN-03 1KW0 0 JRNL AUTH O.A.ANDERSEN,T.FLATMARK,E.HOUGH JRNL TITL CRYSTAL STRUCTURE OF THE TERNARY COMPLEX OF THE CATALYTIC JRNL TITL 2 DOMAIN OF HUMAN PHENYLALANINE HYDROXYLASE WITH JRNL TITL 3 TETRAHYDROBIOPTERIN AND 3-(2-THIENYL)-L-ALANINE, AND ITS JRNL TITL 4 IMPLICATIONS FOR THE MECHANISM OF CATALYSIS AND SUBSTRATE JRNL TITL 5 ACTIVATION JRNL REF J.MOL.BIOL. V. 320 1095 2002 JRNL REFN ISSN 0022-2836 JRNL PMID 12126628 JRNL DOI 10.1016/S0022-2836(02)00560-0 REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 14178 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.220 REMARK 3 FREE R VALUE : 0.267 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 1436 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.50 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.53 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2730 REMARK 3 BIN FREE R VALUE : 0.3410 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 43 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2517 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 29 REMARK 3 SOLVENT ATOMS : 39 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 41.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 34.30 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.35 REMARK 3 ESD FROM SIGMAA (A) : 0.29 REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.120 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.90 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.870 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1KW0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-FEB-02. REMARK 100 THE DEPOSITION ID IS D_1000015391. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-APR-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.8 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : BM1A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.8000 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 345 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MAR REMARK 200 DATA SCALING SOFTWARE : SCALA, CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14178 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 REMARK 200 RESOLUTION RANGE LOW (A) : 10.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.4 REMARK 200 DATA REDUNDANCY : 4.200 REMARK 200 R MERGE (I) : 0.09200 REMARK 200 R SYM (I) : 0.09200 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 7.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.64 REMARK 200 COMPLETENESS FOR SHELL (%) : 95.2 REMARK 200 DATA REDUNDANCY IN SHELL : 4.10 REMARK 200 R MERGE FOR SHELL (I) : 0.37700 REMARK 200 R SYM FOR SHELL (I) : 0.37700 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: ADOPTING ENTRY 1PAH PHASES REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1PAH REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 56.89 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.85 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% PEG 2000, 10% ETHYLENE GLYCOL REMARK 280 0.12M NA-HEPES PH 6.8, 30MM NA-DITHIONITE, 10MM BH4, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 61.72000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 61.72000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 32.58600 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 53.37050 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 32.58600 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 53.37050 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 61.72000 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 32.58600 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 53.37050 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 61.72000 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 32.58600 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 53.37050 REMARK 290 SMTRY3 8 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 300 REMARK: DIMER IS GENERATED BY: REMARK 300 -X, Y, -Z+1/2 REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC REMARK 350 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 61.72000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 GLY A 103 REMARK 465 ALA A 104 REMARK 465 THR A 105 REMARK 465 VAL A 106 REMARK 465 HIS A 107 REMARK 465 GLU A 108 REMARK 465 LEU A 109 REMARK 465 SER A 110 REMARK 465 ARG A 111 REMARK 465 ASP A 112 REMARK 465 LYS A 113 REMARK 465 LYS A 114 REMARK 465 LYS A 115 REMARK 465 ASP A 116 REMARK 465 THR A 117 REMARK 465 ASP A 425 REMARK 465 ASN A 426 REMARK 465 THR A 427 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 GLN A 134 50.14 -107.40 REMARK 500 ILE A 135 153.10 -47.44 REMARK 500 GLU A 141 -70.37 -56.30 REMARK 500 LEU A 142 18.08 -68.88 REMARK 500 HIS A 170 140.55 -34.87 REMARK 500 GLN A 172 158.74 -49.69 REMARK 500 ASN A 223 99.56 -164.78 REMARK 500 ASP A 282 -176.60 -66.64 REMARK 500 THR A 328 -77.96 -130.29 REMARK 500 ARG A 408 141.10 179.92 REMARK 500 PRO A 409 33.75 -65.11 REMARK 500 PHE A 410 177.63 175.59 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 FE2 A 428 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 285 NE2 REMARK 620 2 HIS A 290 NE2 105.6 REMARK 620 3 GLU A 330 OE2 141.5 84.2 REMARK 620 4 GLU A 330 OE1 90.5 106.6 51.2 REMARK 620 5 HOH A 438 O 89.8 142.1 105.2 107.7 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 A 428 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE H4B A 429 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TIH A 430 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1J8U RELATED DB: PDB REMARK 900 CATALYTIC DOMAIN OF HUMAN PHENYLALANINE HYDROXYLASE (FE(II)) IN REMARK 900 COMPLEX WITH TETRAHYDROBIOPTERIN REMARK 900 RELATED ID: 1J8T RELATED DB: PDB REMARK 900 CATALYTIC DOMAIN OF HUMAN PHENYLALANINE HYDROXYLASE (FE(II)) REMARK 900 RELATED ID: 1DMW RELATED DB: PDB REMARK 900 CATALYTIC DOMAIN OF HUMAN PHENYLALANINE HYDROXYLASE (FE(III)) IN REMARK 900 COMPLEX WITH DIHYDROBIOPTERIN REMARK 900 RELATED ID: 1PAH RELATED DB: PDB REMARK 900 CATALYTIC DOMAIN OF HUMAN PHENYLALANINE HYDROXYLASE (FE(III)) REMARK 900 RELATED ID: 2PAH RELATED DB: PDB REMARK 900 CATALYTIC AND TETRAMERIZATION DOMAINS OF HUMAN PHENYLALANINE REMARK 900 HYDROXYLASE (FE(III)) DBREF 1KW0 A 103 427 UNP P00439 PH4H_HUMAN 103 427 SEQRES 1 A 325 GLY ALA THR VAL HIS GLU LEU SER ARG ASP LYS LYS LYS SEQRES 2 A 325 ASP THR VAL PRO TRP PHE PRO ARG THR ILE GLN GLU LEU SEQRES 3 A 325 ASP ARG PHE ALA ASN GLN ILE LEU SER TYR GLY ALA GLU SEQRES 4 A 325 LEU ASP ALA ASP HIS PRO GLY PHE LYS ASP PRO VAL TYR SEQRES 5 A 325 ARG ALA ARG ARG LYS GLN PHE ALA ASP ILE ALA TYR ASN SEQRES 6 A 325 TYR ARG HIS GLY GLN PRO ILE PRO ARG VAL GLU TYR MET SEQRES 7 A 325 GLU GLU GLU LYS LYS THR TRP GLY THR VAL PHE LYS THR SEQRES 8 A 325 LEU LYS SER LEU TYR LYS THR HIS ALA CYS TYR GLU TYR SEQRES 9 A 325 ASN HIS ILE PHE PRO LEU LEU GLU LYS TYR CYS GLY PHE SEQRES 10 A 325 HIS GLU ASP ASN ILE PRO GLN LEU GLU ASP VAL SER GLN SEQRES 11 A 325 PHE LEU GLN THR CYS THR GLY PHE ARG LEU ARG PRO VAL SEQRES 12 A 325 ALA GLY LEU LEU SER SER ARG ASP PHE LEU GLY GLY LEU SEQRES 13 A 325 ALA PHE ARG VAL PHE HIS CYS THR GLN TYR ILE ARG HIS SEQRES 14 A 325 GLY SER LYS PRO MET TYR THR PRO GLU PRO ASP ILE CYS SEQRES 15 A 325 HIS GLU LEU LEU GLY HIS VAL PRO LEU PHE SER ASP ARG SEQRES 16 A 325 SER PHE ALA GLN PHE SER GLN GLU ILE GLY LEU ALA SER SEQRES 17 A 325 LEU GLY ALA PRO ASP GLU TYR ILE GLU LYS LEU ALA THR SEQRES 18 A 325 ILE TYR TRP PHE THR VAL GLU PHE GLY LEU CYS LYS GLN SEQRES 19 A 325 GLY ASP SER ILE LYS ALA TYR GLY ALA GLY LEU LEU SER SEQRES 20 A 325 SER PHE GLY GLU LEU GLN TYR CYS LEU SER GLU LYS PRO SEQRES 21 A 325 LYS LEU LEU PRO LEU GLU LEU GLU LYS THR ALA ILE GLN SEQRES 22 A 325 ASN TYR THR VAL THR GLU PHE GLN PRO LEU TYR TYR VAL SEQRES 23 A 325 ALA GLU SER PHE ASN ASP ALA LYS GLU LYS VAL ARG ASN SEQRES 24 A 325 PHE ALA ALA THR ILE PRO ARG PRO PHE SER VAL ARG TYR SEQRES 25 A 325 ASP PRO TYR THR GLN ARG ILE GLU VAL LEU ASP ASN THR HET FE2 A 428 1 HET H4B A 429 17 HET TIH A 430 11 HETNAM FE2 FE (II) ION HETNAM H4B 5,6,7,8-TETRAHYDROBIOPTERIN HETNAM TIH BETA(2-THIENYL)ALANINE FORMUL 2 FE2 FE 2+ FORMUL 3 H4B C9 H15 N5 O3 FORMUL 4 TIH C7 H9 N O2 S FORMUL 5 HOH *39(H2 O) HELIX 1 1 GLU A 127 ALA A 132 1 6 HELIX 2 2 HIS A 146 LYS A 150 5 5 HELIX 3 3 ASP A 151 ASN A 167 1 17 HELIX 4 4 MET A 180 ALA A 202 1 23 HELIX 5 5 CYS A 203 GLY A 218 1 16 HELIX 6 6 GLN A 226 GLY A 239 1 14 HELIX 7 7 SER A 250 LEU A 258 1 9 HELIX 8 8 ASP A 282 HIS A 290 1 9 HELIX 9 9 HIS A 290 SER A 295 1 6 HELIX 10 10 ASP A 296 LEU A 311 1 16 HELIX 11 11 PRO A 314 PHE A 327 1 14 HELIX 12 12 GLY A 344 SER A 349 1 6 HELIX 13 13 SER A 350 LEU A 358 1 9 HELIX 14 14 GLU A 368 ALA A 373 1 6 HELIX 15 15 SER A 391 ALA A 404 1 14 SHEET 1 A 2 ARG A 241 PRO A 244 0 SHEET 2 A 2 VAL A 262 CYS A 265 1 O PHE A 263 N ARG A 241 SHEET 1 B 4 LYS A 341 ALA A 342 0 SHEET 2 B 4 LEU A 333 CYS A 334 -1 N CYS A 334 O LYS A 341 SHEET 3 B 4 LEU A 385 ALA A 389 1 O ALA A 389 N LEU A 333 SHEET 4 B 4 LYS A 363 PRO A 366 1 N LEU A 365 O VAL A 388 SHEET 1 C 2 VAL A 412 ASP A 415 0 SHEET 2 C 2 ARG A 420 VAL A 423 -1 O GLU A 422 N ARG A 413 LINK NE2 HIS A 285 FE FE2 A 428 1555 1555 2.29 LINK NE2 HIS A 290 FE FE2 A 428 1555 1555 2.33 LINK OE2 GLU A 330 FE FE2 A 428 1555 1555 2.40 LINK OE1 GLU A 330 FE FE2 A 428 1555 1555 2.63 LINK FE FE2 A 428 O HOH A 438 1555 1555 2.44 SITE 1 AC1 5 HIS A 285 HIS A 290 GLU A 330 H4B A 429 SITE 2 AC1 5 HOH A 438 SITE 1 AC2 14 VAL A 245 GLY A 247 LEU A 248 LEU A 249 SITE 2 AC2 14 SER A 251 PHE A 254 LEU A 255 HIS A 264 SITE 3 AC2 14 GLU A 286 TRP A 326 GLU A 330 FE2 A 428 SITE 4 AC2 14 HOH A 438 HOH A 440 SITE 1 AC3 11 ARG A 270 TYR A 277 THR A 278 PRO A 281 SITE 2 AC3 11 HIS A 285 GLU A 330 PHE A 331 SER A 349 SITE 3 AC3 11 SER A 350 HOH A 438 HOH A 441 CRYST1 65.172 106.741 123.440 90.00 90.00 90.00 C 2 2 21 8 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 0.015344 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009368 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008101 0.00000