HEADER SIGNALING PROTEIN 11-MAR-03 1OR4 TITLE CRYSTAL STRUCTURE OF HEMAT SENSOR DOMAIN FROM B.SUBTILIS IN THE CYANO- TITLE 2 LIGANDED FORM COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEME-BASED AEROTACTIC TRANSDUCER HEMAT; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS SUBTILIS; SOURCE 3 ORGANISM_TAXID: 1423; SOURCE 4 GENE: YHFV; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21DE3; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET29 KEYWDS GLOBIN FOLD, SIGNALING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR W.ZHANG,G.N.PHILLIPS JR. REVDAT 3 14-FEB-24 1OR4 1 REMARK LINK REVDAT 2 24-FEB-09 1OR4 1 VERSN REVDAT 1 23-SEP-03 1OR4 0 JRNL AUTH W.ZHANG,G.N.PHILLIPS JRNL TITL STRUCTURE OF THE OXYGEN SENSOR IN BACILLUS SUBTILIS: SIGNAL JRNL TITL 2 TRANSDUCTION OF CHEMOTAXIS BY CONTROL OF SYMMETRY. JRNL REF STRUCTURE V. 11 1097 2003 JRNL REFN ISSN 0969-2126 JRNL PMID 12962628 JRNL DOI 10.1016/S0969-2126(03)00169-2 REMARK 2 REMARK 2 RESOLUTION. 2.15 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) : 2.15 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 26.98 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 CROSS-VALIDATION METHOD : FREE R 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) : 0.197 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.197 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.258 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 4.300 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 1379 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 31839 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.178 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.178 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.230 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 4.300 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 1155 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 26903 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2650 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 90 REMARK 3 SOLVENT ATOMS : 204 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 2901.5 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 0.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 4 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 12286 REMARK 3 NUMBER OF RESTRAINTS : 12870 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 ANGLE DISTANCES (A) : 0.025 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.005 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.024 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.033 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.040 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.006 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.002 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.108 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.000 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : NULL REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: ANISOTROPIC REFINEMENT APPLIED REMARK 3 TO HEME GROUP ONLY REMARK 4 REMARK 4 1OR4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-MAR-03. REMARK 100 THE DEPOSITION ID IS D_1000018585. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 05-APR-02; NULL REMARK 200 TEMPERATURE (KELVIN) : 100; NULL REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y; NULL REMARK 200 RADIATION SOURCE : APS; NULL REMARK 200 BEAMLINE : 14-BM-C; NULL REMARK 200 X-RAY GENERATOR MODEL : NULL; NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M; M REMARK 200 WAVELENGTH OR RANGE (A) : 1; NULL REMARK 200 MONOCHROMATOR : SI 111 CHANNEL; SI 111 CHANNEL REMARK 200 OPTICS : NULL; NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD; NULL REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4; NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 31839 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.150 REMARK 200 RESOLUTION RANGE LOW (A) : 100.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.0 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.15 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.23 REMARK 200 COMPLETENESS FOR SHELL (%) : 83.7 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD; SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 35.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.92 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM CITRATE, KH2PO4, N-OCTYL-D REMARK 280 -GLUCOSIDE, PH 7.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 298K 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 24.99700 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 42.97200 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 40.05850 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 42.97200 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 24.99700 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 40.05850 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 6410 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13880 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -62.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 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 LEU A 2 REMARK 465 PHE A 3 REMARK 465 LYS A 4 REMARK 465 LYS A 5 REMARK 465 ASP A 6 REMARK 465 ARG A 7 REMARK 465 LYS A 8 REMARK 465 GLN A 9 REMARK 465 MET B 1 REMARK 465 LEU B 2 REMARK 465 PHE B 3 REMARK 465 LYS B 4 REMARK 465 LYS B 5 REMARK 465 ASP B 6 REMARK 465 ARG B 7 REMARK 465 LYS B 8 REMARK 465 GLN B 9 REMARK 465 GLU B 10 REMARK 465 THR B 11 REMARK 465 ALA B 12 REMARK 465 TYR B 13 REMARK 465 PHE B 14 REMARK 465 SER B 15 REMARK 465 ASP B 16 REMARK 465 SER B 17 REMARK 465 ASN B 18 REMARK 465 GLY B 19 REMARK 465 GLN B 20 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 10 CG CD OE1 OE2 REMARK 470 LYS A 22 CG CD CE NZ REMARK 470 LYS A 30 CG CD CE NZ REMARK 470 LYS B 30 CG CD CE NZ REMARK 470 HIS B 75 CG ND1 CD2 CE1 NE2 REMARK 470 ARG B 125 CG CD NE CZ NH1 NH2 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 133 CB - CG - CD1 ANGL. DEV. = 3.6 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 SER A 17 88.52 -32.99 REMARK 500 HIS A 31 44.28 -106.18 REMARK 500 ASP A 74 55.18 -96.44 REMARK 500 SER A 87 -137.34 -173.42 REMARK 500 LYS B 22 -95.29 -119.93 REMARK 500 SER B 87 -138.06 -166.73 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 180 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 123 NE2 REMARK 620 2 HEM A 180 NA 91.7 REMARK 620 3 HEM A 180 NB 94.5 90.0 REMARK 620 4 HEM A 180 NC 88.7 179.5 90.2 REMARK 620 5 HEM A 180 ND 91.8 89.9 173.7 89.8 REMARK 620 6 CYN A 181 C 175.0 84.1 88.3 95.5 85.4 REMARK 620 7 CYN A 181 N 177.8 86.1 85.8 93.5 87.9 3.2 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 180 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 123 NE2 REMARK 620 2 HEM B 180 NA 91.7 REMARK 620 3 HEM B 180 NB 96.2 89.9 REMARK 620 4 HEM B 180 NC 95.2 173.1 89.8 REMARK 620 5 HEM B 180 ND 90.9 89.7 173.0 89.7 REMARK 620 6 CYN B 181 C 169.5 78.1 86.5 95.0 86.5 REMARK 620 7 CYN B 181 N 176.7 86.4 86.5 86.7 86.5 8.3 REMARK 620 N 1 2 3 4 5 6 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYN A 181 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYN B 181 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 180 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 180 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1OR6 RELATED DB: PDB DBREF 1OR4 A 1 178 UNP O07621 HEMAT_BACSU 1 178 DBREF 1OR4 B 1 178 UNP O07621 HEMAT_BACSU 1 178 SEQRES 1 A 178 MET LEU PHE LYS LYS ASP ARG LYS GLN GLU THR ALA TYR SEQRES 2 A 178 PHE SER ASP SER ASN GLY GLN GLN LYS ASN ARG ILE GLN SEQRES 3 A 178 LEU THR ASN LYS HIS ALA ASP VAL LYS LYS GLN LEU LYS SEQRES 4 A 178 MET VAL ARG LEU GLY ASP ALA GLU LEU TYR VAL LEU GLU SEQRES 5 A 178 GLN LEU GLN PRO LEU ILE GLN GLU ASN ILE VAL ASN ILE SEQRES 6 A 178 VAL ASP ALA PHE TYR LYS ASN LEU ASP HIS GLU SER SER SEQRES 7 A 178 LEU MET ASP ILE ILE ASN ASP HIS SER SER VAL ASP ARG SEQRES 8 A 178 LEU LYS GLN THR LEU LYS ARG HIS ILE GLN GLU MET PHE SEQRES 9 A 178 ALA GLY VAL ILE ASP ASP GLU PHE ILE GLU LYS ARG ASN SEQRES 10 A 178 ARG ILE ALA SER ILE HIS LEU ARG ILE GLY LEU LEU PRO SEQRES 11 A 178 LYS TRP TYR MET GLY ALA PHE GLN GLU LEU LEU LEU SER SEQRES 12 A 178 MET ILE ASP ILE TYR GLU ALA SER ILE THR ASN GLN GLN SEQRES 13 A 178 GLU LEU LEU LYS ALA ILE LYS ALA THR THR LYS ILE LEU SEQRES 14 A 178 ASN LEU GLU GLN GLN LEU VAL LEU GLU SEQRES 1 B 178 MET LEU PHE LYS LYS ASP ARG LYS GLN GLU THR ALA TYR SEQRES 2 B 178 PHE SER ASP SER ASN GLY GLN GLN LYS ASN ARG ILE GLN SEQRES 3 B 178 LEU THR ASN LYS HIS ALA ASP VAL LYS LYS GLN LEU LYS SEQRES 4 B 178 MET VAL ARG LEU GLY ASP ALA GLU LEU TYR VAL LEU GLU SEQRES 5 B 178 GLN LEU GLN PRO LEU ILE GLN GLU ASN ILE VAL ASN ILE SEQRES 6 B 178 VAL ASP ALA PHE TYR LYS ASN LEU ASP HIS GLU SER SER SEQRES 7 B 178 LEU MET ASP ILE ILE ASN ASP HIS SER SER VAL ASP ARG SEQRES 8 B 178 LEU LYS GLN THR LEU LYS ARG HIS ILE GLN GLU MET PHE SEQRES 9 B 178 ALA GLY VAL ILE ASP ASP GLU PHE ILE GLU LYS ARG ASN SEQRES 10 B 178 ARG ILE ALA SER ILE HIS LEU ARG ILE GLY LEU LEU PRO SEQRES 11 B 178 LYS TRP TYR MET GLY ALA PHE GLN GLU LEU LEU LEU SER SEQRES 12 B 178 MET ILE ASP ILE TYR GLU ALA SER ILE THR ASN GLN GLN SEQRES 13 B 178 GLU LEU LEU LYS ALA ILE LYS ALA THR THR LYS ILE LEU SEQRES 14 B 178 ASN LEU GLU GLN GLN LEU VAL LEU GLU HET CYN A 181 2 HET HEM A 180 43 HET CYN B 181 2 HET HEM B 180 43 HETNAM CYN CYANIDE ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 3 CYN 2(C N 1-) FORMUL 4 HEM 2(C34 H32 FE N4 O4) FORMUL 7 HOH *204(H2 O) HELIX 1 1 SER A 17 LYS A 22 5 6 HELIX 2 2 THR A 28 LYS A 30 5 3 HELIX 3 3 HIS A 31 VAL A 41 1 11 HELIX 4 4 GLY A 44 ASP A 74 1 31 HELIX 5 5 GLU A 76 SER A 87 1 12 HELIX 6 6 SER A 88 MET A 103 1 16 HELIX 7 7 ASP A 110 ILE A 126 1 17 HELIX 8 8 LEU A 129 ILE A 152 1 24 HELIX 9 9 ASN A 154 LEU A 177 1 24 HELIX 10 10 THR B 28 LYS B 30 5 3 HELIX 11 11 HIS B 31 ARG B 42 1 12 HELIX 12 12 GLY B 44 ASN B 61 1 18 HELIX 13 13 ASN B 61 ASP B 74 1 14 HELIX 14 14 GLU B 76 SER B 87 1 12 HELIX 15 15 SER B 88 PHE B 104 1 17 HELIX 16 16 ASP B 110 GLY B 127 1 18 HELIX 17 17 LEU B 129 ILE B 152 1 24 HELIX 18 18 ASN B 154 GLU B 178 1 25 SHEET 1 A 2 ILE A 25 GLN A 26 0 SHEET 2 A 2 ILE A 108 ASP A 109 1 O ILE A 108 N GLN A 26 SHEET 1 B 2 ILE B 25 GLN B 26 0 SHEET 2 B 2 ILE B 108 ASP B 109 1 O ILE B 108 N GLN B 26 LINK NE2 HIS A 123 FE HEM A 180 1555 1555 2.01 LINK FE HEM A 180 C CYN A 181 1555 1555 1.62 LINK FE HEM A 180 N CYN A 181 1555 1555 3.09 LINK NE2 HIS B 123 FE HEM B 180 1555 1555 2.00 LINK FE HEM B 180 C CYN B 181 1555 1555 1.49 LINK FE HEM B 180 N CYN B 181 1555 1555 3.08 CISPEP 1 LEU A 177 GLU A 178 0 -5.54 SITE 1 AC1 4 TYR A 70 LEU A 92 HIS A 123 HEM A 180 SITE 1 AC2 4 TYR B 70 HIS B 123 HEM B 180 HOH B 182 SITE 1 AC3 12 PHE A 69 LEU A 79 ILE A 82 HIS A 86 SITE 2 AC3 12 HIS A 99 ILE A 119 HIS A 123 ILE A 126 SITE 3 AC3 12 LEU A 128 PHE A 137 CYN A 181 HOH A 265 SITE 1 AC4 17 SER A 15 SER A 17 GLN A 20 LEU B 73 SITE 2 AC4 17 LEU B 79 ILE B 83 SER B 87 LEU B 92 SITE 3 AC4 17 LEU B 96 HIS B 99 ILE B 119 HIS B 123 SITE 4 AC4 17 ILE B 126 LEU B 128 PHE B 137 LEU B 140 SITE 5 AC4 17 CYN B 181 CRYST1 49.994 80.117 85.944 90.00 90.00 90.00 P 21 21 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 0.020002 0.000000 0.000000 0.00000 SCALE2 0.000000 0.012482 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011635 0.00000