HEADER OXIDOREDUCTASE 22-MAY-01 1J8U TITLE CATALYTIC DOMAIN OF HUMAN PHENYLALANINE HYDROXYLASE FE(II) IN COMPLEX TITLE 2 WITH TETRAHYDROBIOPTERIN 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: 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 FERROUS IRON, 2-HIS-1-CARBOXYLATE FACIAL TRIAD, TETRAHYDROBIOPTERIN, KEYWDS 2 OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR O.A.ANDERSEN,T.FLATMARK,E.HOUGH REVDAT 3 16-AUG-23 1J8U 1 REMARK REVDAT 2 24-FEB-09 1J8U 1 VERSN REVDAT 1 22-MAY-02 1J8U 0 JRNL AUTH O.A.ANDERSEN,T.FLATMARK,E.HOUGH JRNL TITL HIGH RESOLUTION CRYSTAL STRUCTURES OF THE CATALYTIC DOMAIN JRNL TITL 2 OF HUMAN PHENYLALANINE HYDROXYLASE IN ITS CATALYTICALLY JRNL TITL 3 ACTIVE FE(II) FORM AND BINARY COMPLEX WITH JRNL TITL 4 TETRAHYDROBIOPTERIN. JRNL REF J.MOL.BIOL. V. 314 279 2001 JRNL REFN ISSN 0022-2836 JRNL PMID 11718561 JRNL DOI 10.1006/JMBI.2001.5061 REMARK 2 REMARK 2 RESOLUTION. 1.50 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) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT 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) : 0.157 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.154 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.203 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 7274 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 71887 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)) : NULL REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 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 : 18 REMARK 3 SOLVENT ATOMS : 393 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : NULL REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : NULL REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : NULL REMARK 3 NUMBER OF RESTRAINTS : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.012 REMARK 3 ANGLE DISTANCES (A) : 2.030 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH & HUBER, 1991 REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1J8U COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 24-MAY-01. REMARK 100 THE DEPOSITION ID IS D_1000013504. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-SEP-00 REMARK 200 TEMPERATURE (KELVIN) : 110 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) : 0.873 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 71940 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 6.900 REMARK 200 R MERGE (I) : 0.05100 REMARK 200 R SYM (I) : 0.05100 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 8.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.58 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 5.90 REMARK 200 R MERGE FOR SHELL (I) : 0.37000 REMARK 200 R SYM FOR SHELL (I) : 0.37000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: PDB ENTRY 1PAH REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 57.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.98 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG2000, NA-HEPES, ETHYLENE GLYCOL, PH REMARK 280 6.8, VAPOR DIFFUSION, HANGING DROP, ANAEROBICALLY, TEMPERATURE REMARK 280 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 62.20900 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 62.20900 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 33.22050 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 54.33800 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 33.22050 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 54.33800 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 62.20900 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 33.22050 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 54.33800 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 62.20900 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 33.22050 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 54.33800 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 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 62.20900 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 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 ARG A 130 CG REMARK 480 ALA A 132 CB REMARK 480 ASN A 133 CB REMARK 480 GLN A 134 CB CG OE1 REMARK 480 LYS A 159 CD REMARK 480 LYS A 185 NZ REMARK 480 LYS A 192 CD REMARK 480 LYS A 195 NZ REMARK 480 LYS A 199 NZ REMARK 480 TYR A 204 OH REMARK 480 LYS A 215 CD CE NZ REMARK 480 HIS A 220 CG REMARK 480 GLU A 221 CG CD OE2 REMARK 480 LEU A 248 CD1 REMARK 480 LYS A 274 CD CE NZ REMARK 480 ARG A 297 CZ REMARK 480 LYS A 371 CD REMARK 480 VAL A 379 CG2 REMARK 480 GLU A 381 CG REMARK 480 GLU A 397 CD OE1 OE2 REMARK 480 ARG A 400 NH1 REMARK 480 ARG A 413 CG REMARK 480 GLU A 422 OE1 REMARK 480 LEU A 424 CG CD1 CD2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OE2 GLU A 221 O HOH A 1254 1.67 REMARK 500 REMARK 500 REMARK: NULL 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 166 CB - CG - CD2 ANGL. DEV. = 4.8 DEGREES REMARK 500 ARG A 176 NE - CZ - NH1 ANGL. DEV. = -3.2 DEGREES REMARK 500 TYR A 206 CB - CG - CD2 ANGL. DEV. = 4.3 DEGREES REMARK 500 ARG A 243 CA - CB - CG ANGL. DEV. = 13.4 DEGREES REMARK 500 ARG A 261 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 TYR A 268 CB - CG - CD1 ANGL. DEV. = 4.5 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 THR A 328 -83.97 -125.05 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 98.7 REMARK 620 3 GLU A 330 OE2 92.6 97.1 REMARK 620 4 HOH A1250 O 93.6 162.4 94.9 REMARK 620 5 HOH A1251 O 93.4 87.5 171.8 79.1 REMARK 620 6 HOH A1253 O 175.4 84.3 90.5 82.7 83.2 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 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 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1J8T RELATED DB: PDB REMARK 900 CATALYTIC DOMAIN OF HUMAN PHENYLALANINE HYDROXYLASE FE(II) DBREF 1J8U 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 HETNAM FE2 FE (II) ION HETNAM H4B 5,6,7,8-TETRAHYDROBIOPTERIN FORMUL 2 FE2 FE 2+ FORMUL 3 H4B C9 H15 N5 O3 FORMUL 4 HOH *393(H2 O) HELIX 1 1 ILE A 125 GLN A 134 5 10 HELIX 2 2 GLY A 139 ASP A 143 5 5 HELIX 3 3 ASP A 151 TYR A 168 1 18 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 PHE A 260 1 11 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 THR A 328 1 15 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 N PHE A 263 O ARG A 241 SHEET 1 B 4 SER A 339 ALA A 342 0 SHEET 2 B 4 LEU A 333 GLN A 336 -1 N CYS A 334 O LYS A 341 SHEET 3 B 4 LEU A 385 ALA A 389 1 O TYR A 387 N LEU A 333 SHEET 4 B 4 LYS A 363 PRO A 366 1 O LYS A 363 N TYR A 386 SHEET 1 C 2 SER A 411 ASP A 415 0 SHEET 2 C 2 ARG A 420 LEU A 424 -1 O ARG A 420 N ASP A 415 LINK NE2 HIS A 285 FE FE2 A 428 1555 1555 2.12 LINK NE2 HIS A 290 FE FE2 A 428 1555 1555 2.13 LINK OE2 GLU A 330 FE FE2 A 428 1555 1555 2.07 LINK FE FE2 A 428 O HOH A1250 1555 1555 2.15 LINK FE FE2 A 428 O HOH A1251 1555 1555 2.41 LINK FE FE2 A 428 O HOH A1253 1555 1555 2.41 SITE 1 AC1 6 HIS A 285 HIS A 290 GLU A 330 HOH A1250 SITE 2 AC1 6 HOH A1251 HOH A1253 SITE 1 AC2 11 VAL A 245 GLY A 247 LEU A 249 SER A 251 SITE 2 AC2 11 PHE A 254 HOH A1142 HOH A1251 HOH A1253 SITE 3 AC2 11 HOH A1320 HOH A1327 HOH A1336 CRYST1 66.441 108.676 124.418 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 0.015051 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009202 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008037 0.00000