HEADER OXYGEN STORAGE/TRANSPORT 25-APR-06 2GRZ TITLE 5NS PHOTOPRODUCT OF THE M37V MUTANT OF SCAPHARCA HBI COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLOBIN-1; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: GLOBIN I, HBI, DIMERIC HEMOGLOBIN; 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 KEYWDS OXYGEN TRANSPORT, ALLOSTERY, LAUE, TIME-RESOLVED CRYSTALLOGRAPHY, KEYWDS 2 OXYGEN STORAGE-TRANSPORT COMPLEX EXPDTA X-RAY DIFFRACTION NUMMDL 2 AUTHOR J.E.KNAPP,R.PAHL,V.SRAJER,W.E.ROYER JR. REVDAT 7 30-AUG-23 2GRZ 1 REMARK REVDAT 6 20-OCT-21 2GRZ 1 REMARK SEQADV LINK REVDAT 5 18-OCT-17 2GRZ 1 REMARK REVDAT 4 09-SEP-15 2GRZ 1 VERSN REVDAT 3 24-FEB-09 2GRZ 1 VERSN REVDAT 2 30-MAY-06 2GRZ 1 JRNL REVDAT 1 09-MAY-06 2GRZ 0 JRNL AUTH J.E.KNAPP,R.PAHL,V.SRAJER,W.E.ROYER JR. JRNL TITL ALLOSTERIC ACTION IN REAL TIME: TIME-RESOLVED JRNL TITL 2 CRYSTALLOGRAPHIC STUDIES OF A COOPERATIVE DIMERIC JRNL TITL 3 HEMOGLOBIN. JRNL REF PROC.NATL.ACAD.SCI.USA V. 103 7649 2006 JRNL REFN ISSN 0027-8424 JRNL PMID 16684887 JRNL DOI 10.1073/PNAS.0509411103 REMARK 2 REMARK 2 RESOLUTION. 1.60 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) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 16.85 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 2143404.420 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 73.8 REMARK 3 NUMBER OF REFLECTIONS : 28081 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) : 0.106 REMARK 3 FREE R VALUE : 0.109 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.800 REMARK 3 FREE R VALUE TEST SET COUNT : 1361 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) : 1.60 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.66 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 32.30 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1160 REMARK 3 BIN R VALUE (WORKING SET) : 0.1950 REMARK 3 BIN FREE R VALUE : 0.1820 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.10 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 62 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.023 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2230 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 90 REMARK 3 SOLVENT ATOMS : 241 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 15.70 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.40 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.06000 REMARK 3 B22 (A**2) : -0.38000 REMARK 3 B33 (A**2) : 0.32000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.44000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.12 REMARK 3 ESD FROM SIGMAA (A) : 0.16 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) : 0.12 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.18 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 18.30 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.150 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 : 0.00 REMARK 3 BSOL : 10.00 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: THIS STRUCTURE WAS REFINED USING REMARK 3 DIFFERENCE REFINEMENT. THE STRUCTURE FACTORS SUBMITTED ARE A REMARK 3 WEIGHTED FO(5NS PHOTOPRODUCT) - FO (NO PHOTOLYSIS) SYNTHESIS. REMARK 3 THE A CONFORMER IS THE INITIAL STARTING CO-LIGANDED STRUCTURE REMARK 3 (2GRH) AND WAS NOT REFINED AGAINST THE TIME-RESOLVED REMARK 3 CRYSTALLOGRAPHIC DATA. THE B CONFORMER WAS FITTED TO THE TIME- REMARK 3 RESOLVED DATA WITH DIFFERENCE REFINEMENT. THE OCCUPANCIES WERE REMARK 3 SET BASED ON THE FRACTION OF CO LIGAND PHOTOLYZED CALCULATED REMARK 3 FROM THE INTEGRATION OF THE NEGATIVE ELECTRON DENSITY REMARK 3 SURROUNDING THE CO MOLECULE IN ITS BOUND STATE. REMARK 4 REMARK 4 2GRZ COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-APR-06. REMARK 100 THE DEPOSITION ID IS D_1000037481. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 07-APR-04 REMARK 200 TEMPERATURE (KELVIN) : 283 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 4 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 14-ID-B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : L REMARK 200 WAVELENGTH OR RANGE (A) : 1.0-1.4 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 345 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : PRECOGNITION, EPINORM REMARK 200 DATA SCALING SOFTWARE : PRECOGNITION/EPINORM REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 28081 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 73.8 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.67 REMARK 200 COMPLETENESS FOR SHELL (%) : 33.7 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 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: LAUE REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 2GRH REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.80 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.27 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 57.5% SATURATED PHOSPHATE BUFFER, REMARK 280 SMALL TUBES, TEMPERATURE 298K, PH 7.5 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 46.52000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 21.96500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 46.52000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 21.96500 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 ASYMMETRIC UNIT INCLUDES AN INTACT DIMER WHICH IS THE REMARK 300 BIOLOGICAL ASSEMBLY. 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: 12310 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -54.0 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 1 PRO A 1 REMARK 465 1 PRO B 1 REMARK 465 2 PRO A 1 REMARK 465 2 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 1 PHE A 51 34.74 -99.83 REMARK 500 2 PHE B 51 34.55 -99.19 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 147 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 101 NE2 REMARK 620 2 HEM A 147 NA 89.2 REMARK 620 3 HEM A 147 NB 90.7 89.6 REMARK 620 4 HEM A 147 NC 90.4 179.6 90.4 REMARK 620 5 HEM A 147 ND 89.3 89.6 179.2 90.4 REMARK 620 6 CMO A 148 C 176.2 94.5 90.5 86.0 89.5 REMARK 620 7 CMO A 148 O 171.5 99.1 91.2 81.3 89.0 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 147 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 101 NE2 REMARK 620 2 HEM B 147 NA 92.9 REMARK 620 3 HEM B 147 NB 86.8 88.8 REMARK 620 4 HEM B 147 NC 88.5 178.5 91.8 REMARK 620 5 HEM B 147 ND 92.1 90.5 178.7 89.0 REMARK 620 6 CMO B 148 C 177.3 89.4 91.7 89.3 89.4 REMARK 620 7 CMO B 148 O 171.6 94.7 89.7 84.0 91.5 5.7 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 HEM A 147 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO A 148 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 147 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO B 148 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2GRF RELATED DB: PDB REMARK 900 RELATED ID: 2GRH RELATED DB: PDB DBREF 2GRZ A 1 146 UNP P02213 GLB1_SCAIN 1 146 DBREF 2GRZ B 1 146 UNP P02213 GLB1_SCAIN 1 146 SEQADV 2GRZ VAL A 37 UNP P02213 MET 37 ENGINEERED MUTATION SEQADV 2GRZ VAL B 37 UNP P02213 MET 37 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 VAL 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 PHE 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 VAL 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 PHE 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 147 43 HET CMO A 148 2 HET HEM B 147 43 HET CMO B 148 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 *241(H2 O) HELIX 1 1 SER A 2 ALA A 8 1 7 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 145 1 18 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 NE2AHIS A 101 FE AHEM A 147 1555 1555 2.05 LINK FE AHEM A 147 C ACMO A 148 1555 1555 1.87 LINK FE AHEM A 147 O ACMO A 148 1555 1555 3.07 LINK NE2AHIS B 101 FE AHEM B 147 1555 1555 2.06 LINK FE AHEM B 147 C ACMO B 148 1555 1555 1.84 LINK FE AHEM B 147 O ACMO B 148 1555 1555 3.02 SITE 1 AC1 18 TYR A 50 PHE A 51 ARG A 53 HIS A 69 SITE 2 AC1 18 PHE A 97 HIS A 101 ARG A 104 GLU A 110 SITE 3 AC1 18 PHE A 111 CMO A 148 HOH A 153 HOH A 161 SITE 4 AC1 18 HOH A 177 HOH A 193 HOH A 215 LYS B 96 SITE 5 AC1 18 ASN B 100 HOH B 175 SITE 1 AC2 4 PHE A 51 HIS A 69 LEU A 73 HEM A 147 SITE 1 AC3 17 LYS A 96 ASN A 100 HOH A 201 TYR B 50 SITE 2 AC3 17 PHE B 51 ARG B 53 PHE B 97 HIS B 101 SITE 3 AC3 17 ARG B 104 GLU B 110 PHE B 111 CMO B 148 SITE 4 AC3 17 HOH B 152 HOH B 155 HOH B 175 HOH B 248 SITE 5 AC3 17 HOH B 269 SITE 1 AC4 4 PHE B 51 HIS B 69 LEU B 73 HEM B 147 CRYST1 93.040 43.930 83.440 90.00 121.95 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 0.010748 0.000000 0.006703 0.00000 SCALE2 0.000000 0.022763 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014124 0.00000 MODEL 1