HEADER METAL BINDING PROTEIN 01-JUL-18 6DYG TITLE FE(II)-BOUND STRUCTURE OF THE ENGINEERED CYT CB562 VARIANT, CH3Y COMPND MOL_ID: 1; COMPND 2 MOLECULE: SOLUBLE CYTOCHROME B562; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: CYTOCHROME B-562; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: CYBC; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS DESIGNED PROTEIN, 4-HELIX BUNDLE, ELECTRON TRANSPORT, METAL BINDING KEYWDS 2 PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR F.A.TEZCAN,J.RITTLE REVDAT 6 16-OCT-24 6DYG 1 REMARK REVDAT 5 11-OCT-23 6DYG 1 LINK REVDAT 4 27-NOV-19 6DYG 1 REMARK REVDAT 3 20-NOV-19 6DYG 1 REMARK REVDAT 2 08-MAY-19 6DYG 1 JRNL REVDAT 1 24-APR-19 6DYG 0 JRNL AUTH J.RITTLE,M.J.FIELD,M.T.GREEN,F.A.TEZCAN JRNL TITL AN EFFICIENT, STEP-ECONOMICAL STRATEGY FOR THE DESIGN OF JRNL TITL 2 FUNCTIONAL METALLOPROTEINS. JRNL REF NAT.CHEM. V. 11 434 2019 JRNL REFN ESSN 1755-4349 JRNL PMID 30778140 JRNL DOI 10.1038/S41557-019-0218-9 REMARK 2 REMARK 2 RESOLUTION. 1.49 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) : 1.49 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 38.50 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.9 REMARK 3 NUMBER OF REFLECTIONS : 35060 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) : 0.191 REMARK 3 FREE R VALUE : 0.217 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.690 REMARK 3 FREE R VALUE TEST SET COUNT : 1995 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 38.5079 - 3.5905 0.99 2443 148 0.1601 0.1682 REMARK 3 2 3.5905 - 2.8502 0.99 2401 143 0.1846 0.2193 REMARK 3 3 2.8502 - 2.4900 0.99 2416 147 0.1928 0.2219 REMARK 3 4 2.4900 - 2.2623 1.00 2399 145 0.1979 0.2288 REMARK 3 5 2.2623 - 2.1002 0.99 2397 145 0.1899 0.2173 REMARK 3 6 2.1002 - 1.9764 1.00 2409 146 0.2090 0.2595 REMARK 3 7 1.9764 - 1.8774 1.00 2415 146 0.2078 0.2300 REMARK 3 8 1.8774 - 1.7957 1.00 2419 146 0.2125 0.2825 REMARK 3 9 1.7957 - 1.7265 1.00 2392 143 0.2169 0.2703 REMARK 3 10 1.7265 - 1.6670 1.00 2391 144 0.2331 0.2793 REMARK 3 11 1.6670 - 1.6148 1.00 2397 146 0.2563 0.3039 REMARK 3 12 1.6148 - 1.5687 0.99 2366 142 0.2770 0.3024 REMARK 3 13 1.5687 - 1.5274 0.93 2232 135 0.3217 0.3736 REMARK 3 14 1.5274 - 1.4901 0.82 1988 119 0.3593 0.3269 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) : 0.170 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 32.340 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 : 0.011 1811 REMARK 3 ANGLE : 1.040 2471 REMARK 3 CHIRALITY : 0.065 253 REMARK 3 PLANARITY : 0.007 324 REMARK 3 DIHEDRAL : 23.936 664 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: NULL REMARK 4 REMARK 4 6DYG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 05-JUL-18. REMARK 100 THE DEPOSITION ID IS D_1000235437. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-APR-18 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 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 : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 35186 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.490 REMARK 200 RESOLUTION RANGE LOW (A) : 38.495 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.9 REMARK 200 DATA REDUNDANCY : 6.400 REMARK 200 R MERGE (I) : 0.04100 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 23.8700 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.49 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.53 REMARK 200 COMPLETENESS FOR SHELL (%) : 84.5 REMARK 200 DATA REDUNDANCY IN SHELL : 4.20 REMARK 200 R MERGE FOR SHELL (I) : 0.45000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.350 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: 2BC5 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.48 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.34 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: DROP CONSISTS OF 2 UL OF 25% PEG 1500, REMARK 280 200 MM MAGNESIUM CHLORIDE AND 0.1 M BIS-TRIS (PH 6.5) MIXED WITH REMARK 280 1 UL OF 2.7 MM PROTEIN AND 1.5 MM IRON(II) SULFATE (ANAEROBIC REMARK 280 CRYSTAL GROWTH), VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 41.75650 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: B 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 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 4 CG CD OE1 OE2 REMARK 470 LYS A 19 CD CE NZ REMARK 470 LYS A 32 NZ REMARK 470 LYS A 42 CE NZ REMARK 470 GLU A 49 CG CD OE1 OE2 REMARK 470 ASP A 50 CG OD1 OD2 REMARK 470 LYS A 85 CE NZ REMARK 470 ASP B 28 CG OD1 OD2 REMARK 470 LYS B 42 CE NZ REMARK 470 GLU B 49 CD OE1 OE2 REMARK 470 ASP B 50 CG OD1 OD2 REMARK 470 SER B 52 OG REMARK 470 ASP B 54 CG OD1 OD2 REMARK 470 GLU B 57 CD OE1 OE2 REMARK 470 ARG B 62 NE CZ NH1 NH2 REMARK 470 LYS B 85 NZ REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH B 378 DISTANCE = 5.86 ANGSTROMS 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 HEC A 201 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 MET A 7 SD REMARK 620 2 HEC A 201 NA 89.7 REMARK 620 3 HEC A 201 NB 86.2 90.4 REMARK 620 4 HEC A 201 NC 92.5 177.0 87.7 REMARK 620 5 HEC A 201 ND 94.6 88.8 178.9 93.0 REMARK 620 6 HIS A 102 NE2 176.9 87.9 91.7 89.8 87.4 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FE A 202 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 67 NE2 REMARK 620 2 HIS A 71 NE2 89.1 REMARK 620 3 HIS A 97 NE2 95.1 97.6 REMARK 620 4 HOH A 363 O 83.5 82.6 178.6 REMARK 620 5 HIS B 67 NE2 173.7 85.2 88.2 93.2 REMARK 620 6 HIS B 71 NE2 91.9 169.9 92.2 87.5 93.3 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 202 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU B 4 OE1 REMARK 620 2 HEC B 201 O1A 78.8 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEC B 201 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 MET B 7 SD REMARK 620 2 HEC B 201 NA 90.7 REMARK 620 3 HEC B 201 NB 88.2 92.5 REMARK 620 4 HEC B 201 NC 93.5 175.6 88.9 REMARK 620 5 HEC B 201 ND 94.4 86.5 177.2 91.9 REMARK 620 6 HIS B 102 NE2 175.2 87.8 87.3 88.1 90.1 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 HEC A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue FE A 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG B 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for Di-peptide HEC B 201 and CYS B REMARK 800 101 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for Di-peptide HEC B 201 and CYS B REMARK 800 98 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 6DYB RELATED DB: PDB REMARK 900 RELATED ID: 6DYC RELATED DB: PDB REMARK 900 RELATED ID: 6DYE RELATED DB: PDB REMARK 900 RELATED ID: 6DYD RELATED DB: PDB REMARK 900 RELATED ID: 6DYF RELATED DB: PDB REMARK 900 RELATED ID: 6DY6 RELATED DB: PDB REMARK 900 RELATED ID: 6DY4 RELATED DB: PDB REMARK 900 RELATED ID: 6DY8 RELATED DB: PDB DBREF 6DYG A 1 106 UNP P0ABE7 C562_ECOLX 23 128 DBREF 6DYG B 1 106 UNP P0ABE7 C562_ECOLX 23 128 SEQADV 6DYG TRP A 59 UNP P0ABE7 LYS 81 ENGINEERED MUTATION SEQADV 6DYG HIS A 67 UNP P0ABE7 ILE 89 ENGINEERED MUTATION SEQADV 6DYG TYR A 70 UNP P0ABE7 GLY 92 ENGINEERED MUTATION SEQADV 6DYG HIS A 71 UNP P0ABE7 GLN 93 ENGINEERED MUTATION SEQADV 6DYG CYS A 96 UNP P0ABE7 THR 118 ENGINEERED MUTATION SEQADV 6DYG HIS A 97 UNP P0ABE7 THR 119 ENGINEERED MUTATION SEQADV 6DYG CYS A 98 UNP P0ABE7 ARG 120 ENGINEERED MUTATION SEQADV 6DYG CYS A 101 UNP P0ABE7 TYR 123 ENGINEERED MUTATION SEQADV 6DYG TRP B 59 UNP P0ABE7 LYS 81 ENGINEERED MUTATION SEQADV 6DYG HIS B 67 UNP P0ABE7 ILE 89 ENGINEERED MUTATION SEQADV 6DYG TYR B 70 UNP P0ABE7 GLY 92 ENGINEERED MUTATION SEQADV 6DYG HIS B 71 UNP P0ABE7 GLN 93 ENGINEERED MUTATION SEQADV 6DYG CYS B 96 UNP P0ABE7 THR 118 ENGINEERED MUTATION SEQADV 6DYG HIS B 97 UNP P0ABE7 THR 119 ENGINEERED MUTATION SEQADV 6DYG CYS B 98 UNP P0ABE7 ARG 120 ENGINEERED MUTATION SEQADV 6DYG CYS B 101 UNP P0ABE7 TYR 123 ENGINEERED MUTATION SEQRES 1 A 106 ALA ASP LEU GLU ASP ASN MET GLU THR LEU ASN ASP ASN SEQRES 2 A 106 LEU LYS VAL ILE GLU LYS ALA ASP ASN ALA ALA GLN VAL SEQRES 3 A 106 LYS ASP ALA LEU THR LYS MET ARG ALA ALA ALA LEU ASP SEQRES 4 A 106 ALA GLN LYS ALA THR PRO PRO LYS LEU GLU ASP LYS SER SEQRES 5 A 106 PRO ASP SER PRO GLU MET TRP ASP PHE ARG HIS GLY PHE SEQRES 6 A 106 ASP HIS LEU VAL TYR HIS ILE ASP ASP ALA LEU LYS LEU SEQRES 7 A 106 ALA ASN GLU GLY LYS VAL LYS GLU ALA GLN ALA ALA ALA SEQRES 8 A 106 GLU GLN LEU LYS CYS HIS CYS ASN ALA CYS HIS GLN LYS SEQRES 9 A 106 TYR ARG SEQRES 1 B 106 ALA ASP LEU GLU ASP ASN MET GLU THR LEU ASN ASP ASN SEQRES 2 B 106 LEU LYS VAL ILE GLU LYS ALA ASP ASN ALA ALA GLN VAL SEQRES 3 B 106 LYS ASP ALA LEU THR LYS MET ARG ALA ALA ALA LEU ASP SEQRES 4 B 106 ALA GLN LYS ALA THR PRO PRO LYS LEU GLU ASP LYS SER SEQRES 5 B 106 PRO ASP SER PRO GLU MET TRP ASP PHE ARG HIS GLY PHE SEQRES 6 B 106 ASP HIS LEU VAL TYR HIS ILE ASP ASP ALA LEU LYS LEU SEQRES 7 B 106 ALA ASN GLU GLY LYS VAL LYS GLU ALA GLN ALA ALA ALA SEQRES 8 B 106 GLU GLN LEU LYS CYS HIS CYS ASN ALA CYS HIS GLN LYS SEQRES 9 B 106 TYR ARG HET HEC A 201 74 HET FE A 202 1 HET HEC B 201 74 HET MG B 202 1 HETNAM HEC HEME C HETNAM FE FE (III) ION HETNAM MG MAGNESIUM ION FORMUL 3 HEC 2(C34 H34 FE N4 O4) FORMUL 4 FE FE 3+ FORMUL 6 MG MG 2+ FORMUL 7 HOH *167(H2 O) HELIX 1 AA1 ASP A 2 ALA A 20 1 19 HELIX 2 AA2 ASN A 22 GLN A 41 1 20 HELIX 3 AA3 PRO A 45 GLU A 49 5 5 HELIX 4 AA4 SER A 55 GLU A 81 1 27 HELIX 5 AA5 LYS A 83 GLN A 93 1 11 HELIX 6 AA6 LEU A 94 ARG A 106 1 13 HELIX 7 AA7 ASP B 2 ALA B 20 1 19 HELIX 8 AA8 ASN B 22 GLN B 41 1 20 HELIX 9 AA9 PRO B 45 GLU B 49 5 5 HELIX 10 AB1 SER B 55 GLU B 81 1 27 HELIX 11 AB2 LYS B 83 ARG B 106 1 24 SSBOND 1 CYS A 96 CYS B 96 1555 1555 2.02 LINK SG CYS A 98 CAB HEC A 201 1555 1555 1.72 LINK SG CYS A 101 CAC HEC A 201 1555 1555 1.87 LINK SG CYS B 98 CAB HEC B 201 1555 1555 1.75 LINK SG CYS B 101 CAC HEC B 201 1555 1555 1.92 LINK SD MET A 7 FE HEC A 201 1555 1555 2.31 LINK NE2 HIS A 67 FE FE A 202 1555 1555 2.22 LINK NE2 HIS A 71 FE FE A 202 1555 1555 2.19 LINK NE2 HIS A 97 FE FE A 202 1555 1555 2.14 LINK NE2 HIS A 102 FE HEC A 201 1555 1555 2.00 LINK FE FE A 202 O HOH A 363 1555 1555 2.43 LINK FE FE A 202 NE2 HIS B 67 1555 1555 2.22 LINK FE FE A 202 NE2 HIS B 71 1555 1555 2.18 LINK OE1 GLU B 4 MG MG B 202 1555 1555 2.62 LINK SD MET B 7 FE HEC B 201 1555 1555 2.27 LINK NE2 HIS B 102 FE HEC B 201 1555 1555 1.98 LINK O1A HEC B 201 MG MG B 202 1555 1555 2.49 SITE 1 AC1 8 MET A 7 PHE A 61 PHE A 65 CYS A 98 SITE 2 AC1 8 CYS A 101 HIS A 102 TYR A 105 ARG A 106 SITE 1 AC2 6 HIS A 67 HIS A 71 HIS A 97 HOH A 363 SITE 2 AC2 6 HIS B 67 HIS B 71 SITE 1 AC3 2 GLU B 4 HEC B 201 SITE 1 AC4 23 GLU B 4 MET B 7 GLU B 8 ASN B 11 SITE 2 AC4 23 MET B 33 PRO B 45 PRO B 46 PHE B 61 SITE 3 AC4 23 GLY B 64 PHE B 65 HIS B 97 CYS B 98 SITE 4 AC4 23 ASN B 99 ALA B 100 HIS B 102 GLN B 103 SITE 5 AC4 23 LYS B 104 TYR B 105 ARG B 106 MG B 202 SITE 6 AC4 23 HOH B 304 HOH B 312 HOH B 326 SITE 1 AC5 24 GLU B 4 MET B 7 GLU B 8 ASN B 11 SITE 2 AC5 24 MET B 33 PRO B 45 PRO B 46 PHE B 61 SITE 3 AC5 24 GLY B 64 PHE B 65 LEU B 94 LYS B 95 SITE 4 AC5 24 CYS B 96 HIS B 97 ASN B 99 ALA B 100 SITE 5 AC5 24 CYS B 101 HIS B 102 TYR B 105 ARG B 106 SITE 6 AC5 24 MG B 202 HOH B 304 HOH B 312 HOH B 326 CRYST1 34.739 83.513 39.088 90.00 99.99 90.00 P 1 21 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 0.028786 0.000000 0.005072 0.00000 SCALE2 0.000000 0.011974 0.000000 0.00000 SCALE3 0.000000 0.000000 0.025977 0.00000