HEADER OXIDOREDUCTASE 25-JAN-18 6C93 TITLE EFFECTS OF THE E310A MUTATION OF CYTOCHROME P450 4B1 (CYP4B1) ON N- TITLE 2 OCTANE BINDING AND HEME RUFFLING COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME P450 4B1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CYPIVB1,CYTOCHROME P450 ISOZYME 5; COMPND 5 EC: 1.14.14.1; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ORYCTOLAGUS CUNICULUS; SOURCE 3 ORGANISM_COMMON: RABBIT; SOURCE 4 ORGANISM_TAXID: 9986; SOURCE 5 GENE: CYP4B1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: DH5ALPHA; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PCWORI KEYWDS CYTOCHROME P450, FATTY ACID OMEGA-HYDROXYLASE, CYP4B1, N-OCTANE, KEYWDS 2 OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR M.-H.HSU,E.F.JOHNSON REVDAT 4 04-OCT-23 6C93 1 REMARK REVDAT 3 01-JAN-20 6C93 1 REMARK REVDAT 2 01-AUG-18 6C93 1 JRNL REVDAT 1 20-JUN-18 6C93 0 JRNL AUTH G.K.JENNINGS,M.H.HSU,L.S.SHOCK,E.F.JOHNSON,J.C.HACKETT JRNL TITL NONCOVALENT INTERACTIONS DOMINATE DYNAMIC HEME DISTORTION IN JRNL TITL 2 CYTOCHROME P450 4B1. JRNL REF J. BIOL. CHEM. V. 293 11433 2018 JRNL REFN ESSN 1083-351X JRNL PMID 29858244 JRNL DOI 10.1074/JBC.RA118.004044 REMARK 2 REMARK 2 RESOLUTION. 2.67 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (1.11.1_2575: ???) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.67 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 38.51 REMARK 3 MIN(FOBS/SIGMA_FOBS) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 98.2 REMARK 3 NUMBER OF REFLECTIONS : 24776 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.192 REMARK 3 R VALUE (WORKING SET) : 0.189 REMARK 3 FREE R VALUE : 0.238 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.930 REMARK 3 FREE R VALUE TEST SET COUNT : 1221 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 38.5151 - 5.5575 0.98 2749 126 0.1719 0.2385 REMARK 3 2 5.5575 - 4.4132 0.98 2662 139 0.1504 0.1851 REMARK 3 3 4.4132 - 3.8559 0.98 2624 135 0.1621 0.1677 REMARK 3 4 3.8559 - 3.5036 0.99 2587 160 0.1951 0.2640 REMARK 3 5 3.5036 - 3.2526 1.00 2647 140 0.2358 0.2971 REMARK 3 6 3.2526 - 3.0609 0.97 2598 114 0.2503 0.3280 REMARK 3 7 3.0609 - 2.9077 0.99 2627 129 0.2609 0.3333 REMARK 3 8 2.9077 - 2.7812 1.00 2583 147 0.2338 0.2812 REMARK 3 9 2.7812 - 2.6741 0.94 2478 131 0.2633 0.2955 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.370 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 26.470 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.013 4067 REMARK 3 ANGLE : 1.055 5523 REMARK 3 CHIRALITY : 0.052 573 REMARK 3 PLANARITY : 0.008 705 REMARK 3 DIHEDRAL : 10.216 2389 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: DIVCON 6 PHENIX PLUG-IN USED FOR HEME REMARK 3 STEREO-CHEMICAL RESTRAINTS DURING REFINEMENT REMARK 4 REMARK 4 6C93 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-JAN-18. REMARK 100 THE DEPOSITION ID IS D_1000232335. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-JUL-17 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9795 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 24818 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.674 REMARK 200 RESOLUTION RANGE LOW (A) : 38.510 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.3 REMARK 200 DATA REDUNDANCY : 5.600 REMARK 200 R MERGE (I) : 0.04900 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 20.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.67 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.80 REMARK 200 COMPLETENESS FOR SHELL (%) : 95.2 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.45800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 5T6Q REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 67.48 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.78 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 3350, TRI-SODIUM CITRATE, SODIUM REMARK 280 CHLORIDE, LITHIUM SULFATE, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 84.29533 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 42.14767 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 42.14767 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 84.29533 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1720 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20350 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -15.0 KCAL/MOL 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 18 REMARK 465 ALA A 19 REMARK 465 GLY A 20 REMARK 465 ASN A 274 REMARK 465 ARG A 275 REMARK 465 GLY A 501 REMARK 465 PRO A 502 REMARK 465 LYS A 503 REMARK 465 ALA A 504 REMARK 465 GLU A 505 REMARK 465 LYS A 506 REMARK 465 SER A 507 REMARK 465 THR A 508 REMARK 465 HIS A 509 REMARK 465 HIS A 510 REMARK 465 HIS A 511 REMARK 465 HIS A 512 REMARK 465 HIS A 513 REMARK 465 HIS A 514 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 GLU A 266 CG CD OE1 OE2 REMARK 470 LYS A 267 CG CD CE NZ REMARK 470 GLU A 270 CG CD OE1 OE2 REMARK 470 LYS A 271 CG CD CE NZ REMARK 470 ILE A 272 CG1 CG2 CD1 REMARK 470 GLN A 273 CG CD OE1 NE2 REMARK 470 ARG A 276 CG CD NE CZ NH1 NH2 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 TYR A 74 -62.77 74.51 REMARK 500 GLN A 82 -4.82 71.34 REMARK 500 TYR A 90 34.15 -157.00 REMARK 500 HIS A 312 -35.10 -133.73 REMARK 500 SER A 442 -156.19 62.47 REMARK 500 GLN A 484 61.16 -158.44 REMARK 500 LEU A 485 -66.69 63.25 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 HEM A 600 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 448 SG REMARK 620 2 HEM A 600 NA 97.2 REMARK 620 3 HEM A 600 NB 83.1 92.9 REMARK 620 4 HEM A 600 NC 82.9 176.8 90.3 REMARK 620 5 HEM A 600 ND 98.3 87.4 178.5 89.4 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 HEM A 600 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue OCT A 601 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 5T6Q RELATED DB: PDB REMARK 900 WILDTYPE PROTEIN COMPLEXED WITH N-OCTANE DBREF 6C93 A 20 506 UNP P15128 CP4B1_RABIT 20 506 SEQADV 6C93 MET A 18 UNP P15128 INITIATING METHIONINE SEQADV 6C93 ALA A 19 UNP P15128 EXPRESSION TAG SEQADV 6C93 ALA A 310 UNP P15128 GLU 310 ENGINEERED MUTATION SEQADV 6C93 SER A 507 UNP P15128 EXPRESSION TAG SEQADV 6C93 THR A 508 UNP P15128 EXPRESSION TAG SEQADV 6C93 HIS A 509 UNP P15128 EXPRESSION TAG SEQADV 6C93 HIS A 510 UNP P15128 EXPRESSION TAG SEQADV 6C93 HIS A 511 UNP P15128 EXPRESSION TAG SEQADV 6C93 HIS A 512 UNP P15128 EXPRESSION TAG SEQADV 6C93 HIS A 513 UNP P15128 EXPRESSION TAG SEQADV 6C93 HIS A 514 UNP P15128 EXPRESSION TAG SEQRES 1 A 497 MET ALA GLY PHE LEU LYS LEU LEU ARG LEU LEU LEU ARG SEQRES 2 A 497 ARG GLN ARG LEU ALA ARG ALA MET ASP SER PHE PRO GLY SEQRES 3 A 497 PRO PRO THR HIS TRP LEU PHE GLY HIS ALA LEU GLU ILE SEQRES 4 A 497 GLN LYS THR GLY SER LEU ASP LYS VAL VAL THR TRP THR SEQRES 5 A 497 GLN GLN PHE PRO TYR ALA HIS PRO LEU TRP VAL GLY GLN SEQRES 6 A 497 PHE ILE GLY PHE LEU ASN ILE TYR GLU PRO ASP TYR ALA SEQRES 7 A 497 LYS ALA VAL TYR SER ARG GLY ASP PRO LYS ALA PRO ASP SEQRES 8 A 497 VAL TYR ASP PHE PHE LEU GLN TRP ILE GLY LYS GLY LEU SEQRES 9 A 497 LEU VAL LEU ASP GLY PRO LYS TRP PHE GLN HIS ARG LYS SEQRES 10 A 497 LEU LEU THR PRO GLY PHE HIS TYR ASP VAL LEU LYS PRO SEQRES 11 A 497 TYR VAL ALA ILE PHE ALA ASP SER THR ARG ILE MET LEU SEQRES 12 A 497 GLU LYS TRP GLU LYS LYS ALA CYS GLU GLY LYS SER PHE SEQRES 13 A 497 ASP ILE PHE SER ASP VAL GLY HIS MET ALA LEU ASP THR SEQRES 14 A 497 LEU MET LYS CYS THR PHE GLY LYS GLY ASP SER GLY LEU SEQRES 15 A 497 ASN HIS ARG ASP SER SER TYR TYR VAL ALA VAL SER GLU SEQRES 16 A 497 LEU THR LEU LEU MET GLN GLN ARG ILE ASP SER PHE GLN SEQRES 17 A 497 TYR HIS ASN ASP PHE ILE TYR TRP LEU THR PRO HIS GLY SEQRES 18 A 497 ARG ARG PHE LEU ARG ALA CYS ARG ALA ALA HIS ASP HIS SEQRES 19 A 497 THR ASP ARG VAL ILE ARG GLN ARG LYS ALA ALA LEU GLN SEQRES 20 A 497 ASP GLU LYS GLU ARG GLU LYS ILE GLN ASN ARG ARG HIS SEQRES 21 A 497 LEU ASP PHE LEU ASP ILE LEU LEU ASP VAL ARG GLY GLU SEQRES 22 A 497 SER GLY VAL GLN LEU SER ASP THR ASP LEU ARG ALA GLU SEQRES 23 A 497 VAL ASP THR PHE MET PHE ALA GLY HIS ASP THR THR THR SEQRES 24 A 497 SER GLY ILE SER TRP PHE LEU TYR CYS MET ALA LEU TYR SEQRES 25 A 497 PRO GLU HIS GLN GLN ARG CYS ARG GLU GLU VAL ARG GLU SEQRES 26 A 497 ILE LEU GLY ASP GLN ASP SER PHE GLN TRP GLU ASP LEU SEQRES 27 A 497 ALA LYS MET THR TYR LEU THR MET CYS MET LYS GLU CYS SEQRES 28 A 497 PHE ARG LEU TYR PRO PRO VAL PRO GLN VAL TYR ARG GLN SEQRES 29 A 497 LEU SER LYS PRO VAL SER PHE VAL ASP GLY ARG SER LEU SEQRES 30 A 497 PRO ALA GLY SER LEU ILE SER LEU HIS ILE TYR ALA LEU SEQRES 31 A 497 HIS ARG ASN SER ASP VAL TRP PRO ASP PRO GLU VAL PHE SEQRES 32 A 497 ASP PRO LEU ARG PHE SER PRO GLU ASN SER SER GLY ARG SEQRES 33 A 497 HIS PRO TYR ALA PHE ILE PRO PHE SER ALA GLY PRO ARG SEQRES 34 A 497 ASN CYS ILE GLY GLN GLN PHE ALA MET ASN GLU MET LYS SEQRES 35 A 497 VAL VAL THR ALA LEU CYS LEU LEU ARG PHE GLU PHE SER SEQRES 36 A 497 VAL ASP PRO LEU ARG LEU PRO ILE LYS LEU PRO GLN LEU SEQRES 37 A 497 VAL LEU ARG SER LYS ASN GLY ILE HIS LEU TYR LEU LYS SEQRES 38 A 497 PRO LEU GLY PRO LYS ALA GLU LYS SER THR HIS HIS HIS SEQRES 39 A 497 HIS HIS HIS HET HEM A 600 43 HET OCT A 601 8 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM OCT N-OCTANE HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 OCT C8 H18 FORMUL 4 HOH *6(H2 O) HELIX 1 AA1 PHE A 21 MET A 38 1 18 HELIX 2 AA2 HIS A 52 GLN A 57 1 6 HELIX 3 AA3 GLY A 60 PHE A 72 1 13 HELIX 4 AA4 GLU A 91 SER A 100 1 10 HELIX 5 AA5 ALA A 106 ASP A 111 1 6 HELIX 6 AA6 PHE A 112 LEU A 114 5 3 HELIX 7 AA7 ASP A 125 THR A 137 1 13 HELIX 8 AA8 PRO A 138 PHE A 140 5 3 HELIX 9 AA9 HIS A 141 LYS A 146 1 6 HELIX 10 AB1 PRO A 147 CYS A 168 1 22 HELIX 11 AB2 ILE A 175 PHE A 192 1 18 HELIX 12 AB3 ASN A 200 SER A 223 1 24 HELIX 13 AB4 PHE A 224 HIS A 227 5 4 HELIX 14 AB5 ASN A 228 TRP A 233 1 6 HELIX 15 AB6 THR A 235 LEU A 263 1 29 HELIX 16 AB7 ASP A 265 GLN A 273 1 9 HELIX 17 AB8 ASP A 279 LEU A 285 1 7 HELIX 18 AB9 ASP A 286 GLU A 290 5 5 HELIX 19 AC1 SER A 296 TYR A 329 1 34 HELIX 20 AC2 TYR A 329 GLY A 345 1 17 HELIX 21 AC3 GLN A 351 LYS A 357 5 7 HELIX 22 AC4 MET A 358 TYR A 372 1 15 HELIX 23 AC5 ILE A 404 ARG A 409 1 6 HELIX 24 AC6 ASP A 421 PHE A 425 5 5 HELIX 25 AC7 SER A 426 SER A 431 1 6 HELIX 26 AC8 GLY A 450 ARG A 468 1 19 SHEET 1 AA1 4 ALA A 75 TRP A 79 0 SHEET 2 AA1 4 GLY A 85 ILE A 89 -1 O PHE A 86 N LEU A 78 SHEET 3 AA1 4 LEU A 399 HIS A 403 1 O SER A 401 N LEU A 87 SHEET 4 AA1 4 GLN A 377 GLN A 381 -1 N ARG A 380 O ILE A 400 SHEET 1 AA2 3 PHE A 173 ASP A 174 0 SHEET 2 AA2 3 HIS A 494 PRO A 499 -1 O LEU A 495 N PHE A 173 SHEET 3 AA2 3 PHE A 469 VAL A 473 -1 N SER A 472 O TYR A 496 SHEET 1 AA3 2 VAL A 386 SER A 387 0 SHEET 2 AA3 2 SER A 393 LEU A 394 -1 O LEU A 394 N VAL A 386 SHEET 1 AA4 2 LYS A 481 PRO A 483 0 SHEET 2 AA4 2 LEU A 487 SER A 489 -1 O ARG A 488 N LEU A 482 LINK SG CYS A 448 FE HEM A 600 1555 1555 2.18 SITE 1 AC1 24 LYS A 105 TYR A 110 LEU A 121 LEU A 122 SITE 2 AC1 24 TRP A 129 ARG A 133 PHE A 140 ALA A 310 SITE 3 AC1 24 GLY A 311 THR A 314 PRO A 374 VAL A 375 SITE 4 AC1 24 VAL A 378 PRO A 440 PHE A 441 ARG A 446 SITE 5 AC1 24 ASN A 447 CYS A 448 PHE A 453 ALA A 454 SITE 6 AC1 24 MET A 458 OCT A 601 HOH A 702 HOH A 705 SITE 1 AC2 5 VAL A 109 ALA A 310 THR A 314 GLN A 377 SITE 2 AC2 5 HEM A 600 CRYST1 109.435 109.435 126.443 90.00 90.00 120.00 P 32 2 1 6 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 0.009138 0.005276 0.000000 0.00000 SCALE2 0.000000 0.010551 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007909 0.00000