HEADER OXIDOREDUCTASE 21-MAY-02 1LTZ TITLE CRYSTAL STRUCTURE OF CHROMOBACTERIUM VIOLACEUM PHENYLALANINE TITLE 2 HYDROXYLASE, STRUCTURE HAS BOUND IRON (III) AND OXIDIZED COFACTOR 7, TITLE 3 8-DIHYDROBIOPTERIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: PHENYLALANINE-4-HYDROXYLASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: PAH, PHE-4-MONOOXYGENASE, PHENYLALANINASE; COMPND 5 EC: 1.14.16.1; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CHROMOBACTERIUM VIOLACEUM; SOURCE 3 ORGANISM_TAXID: 536; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)PLYSS; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET-3A KEYWDS OXIDOREDUCTASE, HYDROXYLASE, PHENYLALANINE, DIHYDROBIOPTERIN, KEYWDS 2 BACTERIAL ENZYME EXPDTA X-RAY DIFFRACTION AUTHOR H.ERLANDSEN,J.Y.KIM,M.G.PATCH,A.HAN,A.VOLNER,M.M.ABU-OMAR,R.C.STEVENS REVDAT 4 14-FEB-24 1LTZ 1 REMARK LINK REVDAT 3 11-OCT-17 1LTZ 1 REMARK REVDAT 2 24-FEB-09 1LTZ 1 VERSN REVDAT 1 17-JUL-02 1LTZ 0 JRNL AUTH H.ERLANDSEN,J.Y.KIM,M.G.PATCH,A.HAN,A.VOLNER,M.M.ABU-OMAR, JRNL AUTH 2 R.C.STEVENS JRNL TITL STRUCTURAL COMPARISON OF BACTERIAL AND HUMAN IRON-DEPENDENT JRNL TITL 2 PHENYLALANINE HYDROXYLASES: SIMILAR FOLD, DIFFERENT JRNL TITL 3 STABILITY AND REACTION RATES. JRNL REF J.MOL.BIOL. V. 320 645 2002 JRNL REFN ISSN 0022-2836 JRNL PMID 12096915 JRNL DOI 10.1016/S0022-2836(02)00496-5 REMARK 2 REMARK 2 RESOLUTION. 1.40 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) : 1.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 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) (%) : 92.0 REMARK 3 NUMBER OF REFLECTIONS : 53429 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) : 0.159 REMARK 3 FREE R VALUE : 0.223 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 5425 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) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL 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 : 2202 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 19 REMARK 3 SOLVENT ATOMS : 344 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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) : 0.20 REMARK 3 ESD FROM SIGMAA (A) : 0.16 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.21 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.16 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.020 REMARK 3 BOND ANGLES (DEGREES) : 2.600 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.20 REMARK 3 IMPROPER ANGLES (DEGREES) : 2.050 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ANISOTROPIC 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 1LTZ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-JUN-02. REMARK 100 THE DEPOSITION ID IS D_1000016267. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-NOV-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 5.0.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.00 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL 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 : 54730 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.400 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 (%) : 95.2 REMARK 200 DATA REDUNDANCY : 9.000 REMARK 200 R MERGE (I) : 0.05700 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 28.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.42 REMARK 200 COMPLETENESS FOR SHELL (%) : 67.2 REMARK 200 DATA REDUNDANCY IN SHELL : 3.00 REMARK 200 R MERGE FOR SHELL (I) : 0.42700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: DIFFERENCE MAP REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1LTU REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.89 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.15 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, NACL, HEPES BUFFER, REMARK 280 PH 7.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277.15K 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 23.35000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 45.73500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.93000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 45.73500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.35000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 33.93000 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 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 MET A 1 REMARK 465 ASN A 2 REMARK 465 ASP A 3 REMARK 465 ARG A 4 REMARK 465 ALA A 5 REMARK 465 ASP A 6 REMARK 465 THR A 254 REMARK 465 ALA A 255 REMARK 465 PRO A 256 REMARK 465 ASN A 284 REMARK 465 ALA A 285 REMARK 465 GLY A 286 REMARK 465 ASP A 287 REMARK 465 HIS A 288 REMARK 465 GLN A 289 REMARK 465 GLY A 290 REMARK 465 TRP A 291 REMARK 465 ALA A 292 REMARK 465 ASP A 293 REMARK 465 THR A 294 REMARK 465 GLU A 295 REMARK 465 ASP A 296 REMARK 465 VAL A 297 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 35 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 ARG A 35 NE - CZ - NH2 ANGL. DEV. = -4.7 DEGREES REMARK 500 ARG A 50 CD - NE - CZ ANGL. DEV. = 35.7 DEGREES REMARK 500 ARG A 69 CD - NE - CZ ANGL. DEV. = 37.1 DEGREES REMARK 500 ARG A 69 NH1 - CZ - NH2 ANGL. DEV. = -8.3 DEGREES REMARK 500 ARG A 69 NE - CZ - NH1 ANGL. DEV. = 5.2 DEGREES REMARK 500 ARG A 69 NE - CZ - NH2 ANGL. DEV. = 3.1 DEGREES REMARK 500 PRO A 125 O - C - N ANGL. DEV. = -9.6 DEGREES REMARK 500 ASP A 129 OD1 - CG - OD2 ANGL. DEV. = -13.6 DEGREES REMARK 500 ASP A 129 CB - CG - OD1 ANGL. DEV. = 15.9 DEGREES REMARK 500 TYR A 130 CA - CB - CG ANGL. DEV. = -12.7 DEGREES REMARK 500 TYR A 130 CB - CG - CD2 ANGL. DEV. = -5.6 DEGREES REMARK 500 TYR A 179 CB - CG - CD2 ANGL. DEV. = 3.8 DEGREES REMARK 500 MET A 228 CG - SD - CE ANGL. DEV. = -11.1 DEGREES REMARK 500 ARG A 231 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 TYR A 232 CB - CG - CD2 ANGL. DEV. = -3.7 DEGREES REMARK 500 TYR A 232 CB - CG - CD1 ANGL. DEV. = 4.6 DEGREES REMARK 500 ARG A 233 CD - NE - CZ ANGL. DEV. = 10.7 DEGREES REMARK 500 ARG A 233 NE - CZ - NH1 ANGL. DEV. = 5.2 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 58 -55.49 -126.60 REMARK 500 ARG A 123 150.43 -49.04 REMARK 500 ASP A 129 -148.84 -147.05 REMARK 500 TYR A 130 19.23 43.43 REMARK 500 THR A 182 -81.73 -118.64 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 PRO A 125 17.62 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 FE A 400 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 138 NE2 REMARK 620 2 HIS A 143 NE2 93.6 REMARK 620 3 GLU A 184 OE2 153.3 93.0 REMARK 620 4 GLU A 184 OE1 95.2 90.8 58.9 REMARK 620 5 HOH A1002 O 97.2 90.1 108.6 167.5 REMARK 620 6 HOH A1003 O 90.8 175.4 83.5 89.9 88.3 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 FE A 400 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HBI A 500 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1LTU RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CHROMOBACTERIUM VIOLACEUM, APO (NO IRON BOUND) REMARK 900 STRUCTURE REMARK 900 RELATED ID: 1LTV RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE CHROMOBACTERIUM VIOLACEUM PHENYLALANINE REMARK 900 HYDROXYLASE, STRUCTURE WITH BOUND OXIDIZED FE(III) DBREF 1LTZ A 1 297 UNP P30967 PH4H_CHRVO 1 297 SEQRES 1 A 297 MET ASN ASP ARG ALA ASP PHE VAL VAL PRO ASP ILE THR SEQRES 2 A 297 THR ARG LYS ASN VAL GLY LEU SER HIS ASP ALA ASN ASP SEQRES 3 A 297 PHE THR LEU PRO GLN PRO LEU ASP ARG TYR SER ALA GLU SEQRES 4 A 297 ASP HIS ALA THR TRP ALA THR LEU TYR GLN ARG GLN CYS SEQRES 5 A 297 LYS LEU LEU PRO GLY ARG ALA CYS ASP GLU PHE LEU GLU SEQRES 6 A 297 GLY LEU GLU ARG LEU GLU VAL ASP ALA ASP ARG VAL PRO SEQRES 7 A 297 ASP PHE ASN LYS LEU ASN GLU LYS LEU MET ALA ALA THR SEQRES 8 A 297 GLY TRP LYS ILE VAL ALA VAL PRO GLY LEU ILE PRO ASP SEQRES 9 A 297 ASP VAL PHE PHE GLU HIS LEU ALA ASN ARG ARG PHE PRO SEQRES 10 A 297 VAL THR TRP TRP LEU ARG GLU PRO HIS GLN LEU ASP TYR SEQRES 11 A 297 LEU GLN GLU PRO ASP VAL PHE HIS ASP LEU PHE GLY HIS SEQRES 12 A 297 VAL PRO LEU LEU ILE ASN PRO VAL PHE ALA ASP TYR LEU SEQRES 13 A 297 GLU ALA TYR GLY LYS GLY GLY VAL LYS ALA LYS ALA LEU SEQRES 14 A 297 GLY ALA LEU PRO MET LEU ALA ARG LEU TYR TRP TYR THR SEQRES 15 A 297 VAL GLU PHE GLY LEU ILE ASN THR PRO ALA GLY MET ARG SEQRES 16 A 297 ILE TYR GLY ALA GLY ILE LEU SER SER LYS SER GLU SER SEQRES 17 A 297 ILE TYR CYS LEU ASP SER ALA SER PRO ASN ARG VAL GLY SEQRES 18 A 297 PHE ASP LEU MET ARG ILE MET ASN THR ARG TYR ARG ILE SEQRES 19 A 297 ASP THR PHE GLN LYS THR TYR PHE VAL ILE ASP SER PHE SEQRES 20 A 297 LYS GLN LEU PHE ASP ALA THR ALA PRO ASP PHE ALA PRO SEQRES 21 A 297 LEU TYR LEU GLN LEU ALA ASP ALA GLN PRO TRP GLY ALA SEQRES 22 A 297 GLY ASP ILE ALA PRO ASP ASP LEU VAL LEU ASN ALA GLY SEQRES 23 A 297 ASP HIS GLN GLY TRP ALA ASP THR GLU ASP VAL HET FE A 400 1 HET CL A 401 1 HET HBI A 500 17 HETNAM FE FE (III) ION HETNAM CL CHLORIDE ION HETNAM HBI 7,8-DIHYDROBIOPTERIN FORMUL 2 FE FE 3+ FORMUL 3 CL CL 1- FORMUL 4 HBI C9 H13 N5 O3 FORMUL 5 HOH *344(H2 O) HELIX 1 1 ASP A 11 ASN A 17 1 7 HELIX 2 2 PRO A 32 TYR A 36 5 5 HELIX 3 3 SER A 37 LEU A 55 1 19 HELIX 4 4 CYS A 60 GLU A 71 1 12 HELIX 5 5 ASP A 79 GLY A 92 1 14 HELIX 6 6 PRO A 103 ASN A 113 1 11 HELIX 7 7 ASP A 135 HIS A 143 1 9 HELIX 8 8 VAL A 144 ILE A 148 5 5 HELIX 9 9 ASN A 149 ALA A 166 1 18 HELIX 10 10 GLY A 170 THR A 182 1 13 HELIX 11 11 GLY A 198 SER A 203 1 6 HELIX 12 12 SER A 204 CYS A 211 1 8 HELIX 13 13 ASP A 223 ASN A 229 1 7 HELIX 14 14 SER A 246 ALA A 253 1 8 HELIX 15 15 PHE A 258 ALA A 266 1 9 SHEET 1 A 2 LYS A 94 VAL A 98 0 SHEET 2 A 2 ARG A 115 THR A 119 1 O VAL A 118 N VAL A 96 SHEET 1 B 4 GLY A 193 ILE A 196 0 SHEET 2 B 4 LEU A 187 THR A 190 -1 N ILE A 188 O ARG A 195 SHEET 3 B 4 THR A 240 ILE A 244 1 O ILE A 244 N LEU A 187 SHEET 4 B 4 ASN A 218 GLY A 221 1 N VAL A 220 O VAL A 243 LINK NE2 HIS A 138 FE FE A 400 1555 1555 2.13 LINK NE2 HIS A 143 FE FE A 400 1555 1555 2.16 LINK OE2 GLU A 184 FE FE A 400 1555 1555 2.16 LINK OE1 GLU A 184 FE FE A 400 1555 1555 2.24 LINK FE FE A 400 O HOH A1002 1555 1555 2.21 LINK FE FE A 400 O HOH A1003 1555 1555 2.13 SITE 1 AC1 5 HIS A 138 HIS A 143 GLU A 184 HOH A1002 SITE 2 AC1 5 HOH A1003 SITE 1 AC2 3 LYS A 167 ALA A 168 HOH A1078 SITE 1 AC3 11 GLY A 100 ILE A 102 ASP A 104 PHE A 107 SITE 2 AC3 11 TYR A 159 HOH A1001 HOH A1002 HOH A1004 SITE 3 AC3 11 HOH A1005 HOH A1006 HOH A1030 CRYST1 46.700 67.860 91.470 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 0.021413 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014736 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010933 0.00000