HEADER OXYGEN STORAGE/TRANSPORT 03-SEP-01 1JW8 TITLE 1.3 ANGSTROM RESOLUTION CRYSTAL STRUCTURE OF P6 FORM OF MYOGLOBIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: MYOGLOBIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PHYSETER CATODON; SOURCE 3 ORGANISM_COMMON: SPERM WHALE; SOURCE 4 ORGANISM_TAXID: 9755; SOURCE 5 GENE: MB (SYNTHESIZED); SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ANISOTROPIC REFINEMENT MYOGLOBIN, OXYGEN STORAGE-TRANSPORT COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR G.N.PHILLIPS JR. REVDAT 7 07-FEB-24 1JW8 1 REMARK LINK REVDAT 6 04-OCT-17 1JW8 1 REMARK REVDAT 5 30-JAN-13 1JW8 1 JRNL AUTHOR REVDAT 4 13-JUL-11 1JW8 1 VERSN REVDAT 3 24-FEB-09 1JW8 1 VERSN REVDAT 2 18-NOV-08 1JW8 1 JRNL REVDAT 1 10-OCT-01 1JW8 0 JRNL AUTH D.A.KONDRASHOV,W.ZHANG,R.ARANDA,B.STEC,G.N.PHILLIPS JR. JRNL TITL SAMPLING OF THE NATIVE CONFORMATIONAL ENSEMBLE OF MYOGLOBIN JRNL TITL 2 VIA STRUCTURES IN DIFFERENT CRYSTALLINE ENVIRONMENTS. JRNL REF PROTEINS V. 70 353 2008 JRNL REFN ISSN 0887-3585 JRNL PMID 17680690 JRNL DOI 10.1002/PROT.21499 REMARK 2 REMARK 2 RESOLUTION. 1.30 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) : 1.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL 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) : 0.135 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.133 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.157 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 4.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 1970 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 47301 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)) : 0.125 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.147 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 4.000 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 1770 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 42202 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1225 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 60 REMARK 3 SOLVENT ATOMS : 260 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 : 9 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 14307 REMARK 3 NUMBER OF RESTRAINTS : 17825 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.013 REMARK 3 ANGLE DISTANCES (A) : 0.027 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.066 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.076 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.022 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 : NULL REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1JW8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 05-SEP-01. REMARK 100 THE DEPOSITION ID IS D_1000014256. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL; NULL REMARK 200 TEMPERATURE (KELVIN) : 100; NULL REMARK 200 PH : 9.0 REMARK 200 NUMBER OF CRYSTALS USED : 2 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y; N REMARK 200 RADIATION SOURCE : NSLS; ROTATING ANODE REMARK 200 BEAMLINE : X12C; NULL REMARK 200 X-RAY GENERATOR MODEL : NULL; RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M; M REMARK 200 WAVELENGTH OR RANGE (A) : 0.91; 1.5418 REMARK 200 MONOCHROMATOR : NULL; NULL REMARK 200 OPTICS : NULL; NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL; NULL REMARK 200 DETECTOR MANUFACTURER : NULL; NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 49946 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.300 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.6 REMARK 200 DATA REDUNDANCY : 3.000 REMARK 200 R MERGE (I) : 0.06700 REMARK 200 R SYM (I) : 0.05100 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) : 1.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.35 REMARK 200 COMPLETENESS FOR SHELL (%) : 83.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.00 REMARK 200 R MERGE FOR SHELL (I) : 0.27200 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH; SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MERLOT REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 60.03 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.08 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, TRIS, PH 9.0, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 295K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 6 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 -X,-Y,Z REMARK 290 5555 Y,-X+Y,Z REMARK 290 6555 X-Y,X,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 -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 0.00000 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 0.00000 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 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 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 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2, 3 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 7240 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 21920 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -186.0 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 350 BIOMT1 2 -0.500000 -0.866025 0.000000 90.38000 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -0.500000 0.866025 0.000000 45.19000 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 78.27138 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 REMARK 350 BIOMOLECULE: 3 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC REMARK 350 SOFTWARE USED: PQS 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 5 0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 350 BIOMT3 5 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 350 BIOMT2 6 0.866025 0.500000 0.000000 0.00000 REMARK 350 BIOMT3 6 0.000000 0.000000 1.000000 0.00000 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 S SO4 A 158 LIES ON A SPECIAL POSITION. REMARK 375 O2 SO4 A 158 LIES ON A SPECIAL POSITION. REMARK 375 HOH A1243 LIES ON A SPECIAL POSITION. REMARK 375 HOH A1248 LIES ON A SPECIAL POSITION. 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 32 NE - CZ - NH2 ANGL. DEV. = -4.5 DEGREES REMARK 500 ARG A 46 NE - CZ - NH1 ANGL. DEV. = -4.2 DEGREES REMARK 500 GLU A 110 OE1 - CD - OE2 ANGL. DEV. = -8.3 DEGREES REMARK 500 TYR A 147 CB - CG - CD2 ANGL. DEV. = 3.9 DEGREES REMARK 500 GLU A 149 OE1 - CD - OE2 ANGL. DEV. = -7.5 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 ASP A 21 77.17 -157.45 REMARK 500 HIS A 82 59.86 -90.21 REMARK 500 LYS A 99 64.75 60.46 REMARK 500 PHE A 124 47.73 -142.51 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 155 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 94 NE2 REMARK 620 2 HEM A 155 NA 90.1 REMARK 620 3 HEM A 155 NB 89.9 90.6 REMARK 620 4 HEM A 155 NC 90.4 178.6 90.7 REMARK 620 5 HEM A 155 ND 89.4 89.5 179.3 89.2 REMARK 620 6 CMO A 156 C 171.6 97.8 92.9 81.7 87.8 REMARK 620 7 CMO A 156 O 170.1 98.9 94.2 80.5 86.5 1.7 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 SO4 A 157 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 158 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 159 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 155 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO A 156 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2MBW RELATED DB: PDB REMARK 900 RECOMBINANT SPERM WHALE MYOGLOBIN (MET) DBREF 1JW8 A 2 154 UNP P02185 MYG_PHYCA 1 153 SEQADV 1JW8 MET A 1 UNP P02185 SEE REMARK 999 SEQADV 1JW8 ASN A 123 UNP P02185 ASP 122 SEE REMARK 999 SEQRES 1 A 154 MET VAL LEU SER GLU GLY GLU TRP GLN LEU VAL LEU HIS SEQRES 2 A 154 VAL TRP ALA LYS VAL GLU ALA ASP VAL ALA GLY HIS GLY SEQRES 3 A 154 GLN ASP ILE LEU ILE ARG LEU PHE LYS SER HIS PRO GLU SEQRES 4 A 154 THR LEU GLU LYS PHE ASP ARG PHE LYS HIS LEU LYS THR SEQRES 5 A 154 GLU ALA GLU MET LYS ALA SER GLU ASP LEU LYS LYS HIS SEQRES 6 A 154 GLY VAL THR VAL LEU THR ALA LEU GLY ALA ILE LEU LYS SEQRES 7 A 154 LYS LYS GLY HIS HIS GLU ALA GLU LEU LYS PRO LEU ALA SEQRES 8 A 154 GLN SER HIS ALA THR LYS HIS LYS ILE PRO ILE LYS TYR SEQRES 9 A 154 LEU GLU PHE ILE SER GLU ALA ILE ILE HIS VAL LEU HIS SEQRES 10 A 154 SER ARG HIS PRO GLY ASN PHE GLY ALA ASP ALA GLN GLY SEQRES 11 A 154 ALA MET ASN LYS ALA LEU GLU LEU PHE ARG LYS ASP ILE SEQRES 12 A 154 ALA ALA LYS TYR LYS GLU LEU GLY TYR GLN GLY HET SO4 A 157 5 HET SO4 A 158 5 HET SO4 A 159 5 HET HEM A 155 43 HET CMO A 156 2 HETNAM SO4 SULFATE ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM CMO CARBON MONOXIDE HETSYN HEM HEME FORMUL 2 SO4 3(O4 S 2-) FORMUL 5 HEM C34 H32 FE N4 O4 FORMUL 6 CMO C O FORMUL 7 HOH *260(H2 O) HELIX 1 1 SER A 4 GLU A 19 1 16 HELIX 2 2 ASP A 21 HIS A 37 1 17 HELIX 3 3 PRO A 38 PHE A 44 5 7 HELIX 4 4 THR A 52 SER A 59 1 8 HELIX 5 5 SER A 59 LYS A 79 1 21 HELIX 6 6 HIS A 83 LYS A 97 1 15 HELIX 7 7 PRO A 101 HIS A 120 1 20 HELIX 8 8 GLY A 125 GLY A 151 1 27 LINK NE2 HIS A 94 FE HEM A 155 1555 1555 2.06 LINK FE HEM A 155 C CMO A 156 1555 1555 1.77 LINK FE HEM A 155 O CMO A 156 1555 1555 2.91 SITE 1 AC1 8 SER A 4 GLU A 5 THR A 52 GLU A 53 SITE 2 AC1 8 ALA A 54 HOH A1093 HOH A1227 HOH A1232 SITE 1 AC2 2 LYS A 17 HOH A1236 SITE 1 AC3 8 GLY A 125 ALA A 126 ASP A 127 HOH A1025 SITE 2 AC3 8 HOH A1028 HOH A1166 HOH A1211 HOH A1256 SITE 1 AC4 22 THR A 40 LYS A 43 PHE A 44 ARG A 46 SITE 2 AC4 22 HIS A 65 THR A 68 VAL A 69 ALA A 72 SITE 3 AC4 22 LEU A 90 SER A 93 HIS A 94 HIS A 98 SITE 4 AC4 22 ILE A 100 TYR A 104 LEU A 105 CMO A 156 SITE 5 AC4 22 HOH A1036 HOH A1078 HOH A1081 HOH A1082 SITE 6 AC4 22 HOH A1110 HOH A1136 SITE 1 AC5 4 PHE A 44 HIS A 65 VAL A 69 HEM A 155 CRYST1 90.380 90.380 45.340 90.00 90.00 120.00 P 6 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 0.011064 0.006388 0.000000 0.00000 SCALE2 0.000000 0.012776 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022056 0.00000