HEADER OXYGEN STORAGE/TRANSPORT 28-AUG-05 2AUO TITLE RESIDUE F4 PLAYS A KEY ROLE IN MODULATING THE OXYGEN AFFINITY AND TITLE 2 COOPERATRIVITY IN SCAPHARCA DIMERIC HEMOGLOBIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLOBIN I; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: DIMERIC HEMOGLOBIN, HBI; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SCAPHARCA INAEQUIVALVIS; SOURCE 3 ORGANISM_COMMON: ARK CLAM; SOURCE 4 ORGANISM_TAXID: 6561; SOURCE 5 GENE: HBI; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: W3110LACIQL8; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PCS-26 KEYWDS OXYGEN TRANSPORT, ALLOSTERY, OXYGEN AFFINITY, OXYGEN STORAGE- KEYWDS 2 TRANSPORT COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR J.E.KNAPP,M.A.BONHAM,Q.H.GIBSON,J.C.NICHOLS,W.E.ROYER JR. REVDAT 3 20-OCT-21 2AUO 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 2AUO 1 VERSN REVDAT 1 28-MAR-06 2AUO 0 JRNL AUTH J.E.KNAPP,M.A.BONHAM,Q.H.GIBSON,J.C.NICHOLS,W.E.ROYER JR. JRNL TITL RESIDUE F4 PLAYS A KEY ROLE IN MODULATING OXYGEN AFFINITY JRNL TITL 2 AND COOPERATIVITY IN SCAPHARCA DIMERIC HEMOGLOBIN JRNL REF BIOCHEMISTRY V. 44 14419 2005 JRNL REFN ISSN 0006-2960 JRNL PMID 16262242 JRNL DOI 10.1021/BI051052+ REMARK 2 REMARK 2 RESOLUTION. 1.53 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 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) : 1.53 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.11 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 873583.800 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 96.5 REMARK 3 NUMBER OF REFLECTIONS : 42022 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) : 0.196 REMARK 3 FREE R VALUE : 0.216 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 4146 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.003 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 10 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.53 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.55 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 25.50 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1058 REMARK 3 BIN R VALUE (WORKING SET) : 0.2960 REMARK 3 BIN FREE R VALUE : 0.2980 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.30 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 121 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.027 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2234 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 90 REMARK 3 SOLVENT ATOMS : 190 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.80 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.84000 REMARK 3 B22 (A**2) : 1.84000 REMARK 3 B33 (A**2) : -1.01000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.85000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.19 REMARK 3 ESD FROM SIGMAA (A) : 0.15 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) : 0.20 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.14 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.100 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 19.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.990 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : GROUP 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 : FLAT MODEL REMARK 3 KSOL : 0.34 REMARK 3 BSOL : 53.73 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : PARAM19X.HEME REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : TOPH19X.HEME REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2AUO COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 29-AUG-05. REMARK 100 THE DEPOSITION ID IS D_1000034333. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 31-OCT-96 REMARK 200 TEMPERATURE (KELVIN) : 298 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : YALE MIRRORS REMARK 200 OPTICS : YALE MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 42022 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.530 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.7 REMARK 200 DATA REDUNDANCY : 3.300 REMARK 200 R MERGE (I) : 0.06400 REMARK 200 R SYM (I) : 0.06400 REMARK 200 FOR THE DATA SET : 23.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.53 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.55 REMARK 200 COMPLETENESS FOR SHELL (%) : 83.0 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 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 3SDH REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.50 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.30 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PHOSPHATE BUFFER, PH 7.5, SMALL TUBES, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 46.64000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 22.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 46.64000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 22.00000 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 300 REMARK: THE MOLECULAR ASSEMBLAGE IS THE DIMERIC UNIT PRESENT IN THE REMARK 300 ASYMMETRIC UNIT. 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: 4900 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12280 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -53.0 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 PRO A 1 REMARK 465 PRO B 1 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 ASN A 126 30.62 71.03 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 153 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 101 NE2 REMARK 620 2 HEM A 153 NA 91.3 REMARK 620 3 HEM A 153 NB 89.0 89.2 REMARK 620 4 HEM A 153 NC 89.6 178.9 90.2 REMARK 620 5 HEM A 153 ND 91.5 90.4 179.4 90.2 REMARK 620 6 CMO A 154 C 174.9 93.8 91.0 85.3 88.5 REMARK 620 7 CMO A 154 O 170.3 98.1 92.9 81.0 86.7 4.7 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 153 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 101 NE2 REMARK 620 2 HEM B 153 NA 91.7 REMARK 620 3 HEM B 153 NB 88.3 89.6 REMARK 620 4 HEM B 153 NC 90.7 177.6 90.7 REMARK 620 5 HEM B 153 ND 92.1 90.2 179.5 89.6 REMARK 620 6 CMO B 154 C 177.6 90.3 90.5 87.3 89.1 REMARK 620 7 CMO B 154 O 175.1 93.2 90.9 84.5 88.7 2.8 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 HEM A 153 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 153 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO A 154 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO B 154 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3SDH RELATED DB: PDB REMARK 900 WILD TYPE HBI-CO REMARK 900 RELATED ID: 2HBI RELATED DB: PDB REMARK 900 HBI-F97L MUTANT NO LIGAND REMARK 900 RELATED ID: 3HBI RELATED DB: PDB REMARK 900 HBI-F97L MUTANT, CO LIGAND REMARK 900 RELATED ID: 4SDH RELATED DB: PDB REMARK 900 WILD TYPE HBI, NO LIGAND REMARK 900 RELATED ID: 2AUP RELATED DB: PDB REMARK 900 RELATED ID: 2AUQ RELATED DB: PDB REMARK 900 RELATED ID: 2AUR RELATED DB: PDB DBREF 2AUO A 1 146 UNP P02213 GLB1_SCAIN 1 146 DBREF 2AUO B 1 146 UNP P02213 GLB1_SCAIN 1 146 SEQADV 2AUO TYR A 97 UNP P02213 PHE 97 ENGINEERED MUTATION SEQADV 2AUO TYR B 97 UNP P02213 PHE 97 ENGINEERED MUTATION SEQRES 1 A 146 PRO SER VAL TYR ASP ALA ALA ALA GLN LEU THR ALA ASP SEQRES 2 A 146 VAL LYS LYS ASP LEU ARG ASP SER TRP LYS VAL ILE GLY SEQRES 3 A 146 SER ASP LYS LYS GLY ASN GLY VAL ALA LEU MET THR THR SEQRES 4 A 146 LEU PHE ALA ASP ASN GLN GLU THR ILE GLY TYR PHE LYS SEQRES 5 A 146 ARG LEU GLY ASP VAL SER GLN GLY MET ALA ASN ASP LYS SEQRES 6 A 146 LEU ARG GLY HIS SER ILE THR LEU MET TYR ALA LEU GLN SEQRES 7 A 146 ASN PHE ILE ASP GLN LEU ASP ASN PRO ASP ASP LEU VAL SEQRES 8 A 146 CYS VAL VAL GLU LYS TYR ALA VAL ASN HIS ILE THR ARG SEQRES 9 A 146 LYS ILE SER ALA ALA GLU PHE GLY LYS ILE ASN GLY PRO SEQRES 10 A 146 ILE LYS LYS VAL LEU ALA SER LYS ASN PHE GLY ASP LYS SEQRES 11 A 146 TYR ALA ASN ALA TRP ALA LYS LEU VAL ALA VAL VAL GLN SEQRES 12 A 146 ALA ALA LEU SEQRES 1 B 146 PRO SER VAL TYR ASP ALA ALA ALA GLN LEU THR ALA ASP SEQRES 2 B 146 VAL LYS LYS ASP LEU ARG ASP SER TRP LYS VAL ILE GLY SEQRES 3 B 146 SER ASP LYS LYS GLY ASN GLY VAL ALA LEU MET THR THR SEQRES 4 B 146 LEU PHE ALA ASP ASN GLN GLU THR ILE GLY TYR PHE LYS SEQRES 5 B 146 ARG LEU GLY ASP VAL SER GLN GLY MET ALA ASN ASP LYS SEQRES 6 B 146 LEU ARG GLY HIS SER ILE THR LEU MET TYR ALA LEU GLN SEQRES 7 B 146 ASN PHE ILE ASP GLN LEU ASP ASN PRO ASP ASP LEU VAL SEQRES 8 B 146 CYS VAL VAL GLU LYS TYR ALA VAL ASN HIS ILE THR ARG SEQRES 9 B 146 LYS ILE SER ALA ALA GLU PHE GLY LYS ILE ASN GLY PRO SEQRES 10 B 146 ILE LYS LYS VAL LEU ALA SER LYS ASN PHE GLY ASP LYS SEQRES 11 B 146 TYR ALA ASN ALA TRP ALA LYS LEU VAL ALA VAL VAL GLN SEQRES 12 B 146 ALA ALA LEU HET HEM A 153 43 HET CMO A 154 2 HET HEM B 153 43 HET CMO B 154 2 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM CMO CARBON MONOXIDE HETSYN HEM HEME FORMUL 3 HEM 2(C34 H32 FE N4 O4) FORMUL 4 CMO 2(C O) FORMUL 7 HOH *190(H2 O) HELIX 1 1 SER A 2 GLN A 9 1 8 HELIX 2 2 THR A 11 GLY A 26 1 16 HELIX 3 3 ASP A 28 ASN A 44 1 17 HELIX 4 4 GLN A 45 GLY A 55 5 11 HELIX 5 5 ASP A 56 ALA A 62 5 7 HELIX 6 6 ASN A 63 GLN A 83 1 21 HELIX 7 7 ASN A 86 THR A 103 1 18 HELIX 8 8 SER A 107 GLY A 112 1 6 HELIX 9 9 ILE A 114 LYS A 125 1 12 HELIX 10 10 GLY A 128 ALA A 144 1 17 HELIX 11 11 SER B 2 LEU B 10 1 9 HELIX 12 12 THR B 11 GLY B 26 1 16 HELIX 13 13 ASP B 28 ASN B 44 1 17 HELIX 14 14 GLN B 45 GLY B 55 5 11 HELIX 15 15 ASP B 56 ALA B 62 5 7 HELIX 16 16 ASN B 63 GLN B 83 1 21 HELIX 17 17 ASN B 86 THR B 103 1 18 HELIX 18 18 SER B 107 GLY B 112 1 6 HELIX 19 19 ILE B 114 LYS B 125 1 12 HELIX 20 20 GLY B 128 ALA B 144 1 17 LINK NE2 HIS A 101 FE HEM A 153 1555 1555 2.09 LINK FE HEM A 153 C CMO A 154 1555 1555 1.88 LINK FE HEM A 153 O CMO A 154 1555 1555 3.07 LINK NE2 HIS B 101 FE HEM B 153 1555 1555 2.09 LINK FE HEM B 153 C CMO B 154 1555 1555 1.85 LINK FE HEM B 153 O CMO B 154 1555 1555 3.05 SITE 1 AC1 19 TYR A 50 PHE A 51 ARG A 53 HIS A 69 SITE 2 AC1 19 LEU A 73 ASN A 100 HIS A 101 ARG A 104 SITE 3 AC1 19 GLU A 110 PHE A 111 CMO A 154 HOH A 210 SITE 4 AC1 19 HOH A 211 HOH A 319 HOH A 335 LYS B 96 SITE 5 AC1 19 ASN B 100 HOH B 220 HOH B 255 SITE 1 AC2 16 LYS A 96 ASN A 100 HOH A 217 TYR B 50 SITE 2 AC2 16 PHE B 51 ARG B 53 ASN B 100 HIS B 101 SITE 3 AC2 16 ARG B 104 PHE B 111 ILE B 114 CMO B 154 SITE 4 AC2 16 HOH B 205 HOH B 207 HOH B 255 HOH B 289 SITE 1 AC3 5 MET A 37 PHE A 51 HIS A 69 LEU A 73 SITE 2 AC3 5 HEM A 153 SITE 1 AC4 5 MET B 37 PHE B 51 HIS B 69 LEU B 73 SITE 2 AC4 5 HEM B 153 CRYST1 93.280 44.000 83.610 90.00 121.98 90.00 C 1 2 1 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 0.010720 0.000000 0.006694 0.00000 SCALE2 0.000000 0.022727 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014100 0.00000 MASTER 306 0 4 20 0 0 13 6 0 0 0 24 END