HEADER OXYGEN BINDING 03-FEB-09 3G46 TITLE LIGAND MIGRATION AND CAVITIES WITHIN SCAPHARCA DIMERIC HEMOGLOBIN: TITLE 2 WILD TYPE WITH CO BOUND TO HEME AND CHLOROFORM BOUND TO THE XE4 TITLE 3 CAVITY 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 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, CYTOPLASM, HEME, IRON, KEYWDS 2 METAL-BINDING, OXYGEN STORAGE/TRANSPORT, OXYGEN BINDING, TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR J.E.KNAPP,R.PAHL,J.COHEN,J.C.NICHOLS,K.SCHULTEN,Q.H.GIBSON,V.SRAJER, AUTHOR 2 W.E.ROYER JR. REVDAT 3 06-SEP-23 3G46 1 REMARK LINK REVDAT 2 24-JUL-19 3G46 1 REMARK REVDAT 1 01-DEC-09 3G46 0 JRNL AUTH J.E.KNAPP,R.PAHL,J.COHEN,J.C.NICHOLS,K.SCHULTEN,Q.H.GIBSON, JRNL AUTH 2 V.SRAJER,W.E.ROYER JRNL TITL LIGAND MIGRATION AND CAVITIES WITHIN SCAPHARCA DIMERIC HBI: JRNL TITL 2 STUDIES BY TIME-RESOLVED CRYSTALLO-GRAPHY, XE BINDING, AND JRNL TITL 3 COMPUTATIONAL ANALYSIS. JRNL REF STRUCTURE V. 17 1494 2009 JRNL REFN ISSN 0969-2126 JRNL PMID 19913484 JRNL DOI 10.1016/J.STR.2009.09.004 REMARK 2 REMARK 2 RESOLUTION. 0.91 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) : 0.91 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 46.30 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 75.8 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) : 0.129 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.129 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.156 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.300 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 8034 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 152165 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.123 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.123 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.150 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.300 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 7395 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 140215 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2246 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 96 REMARK 3 SOLVENT ATOMS : 432 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 2761.8 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 2315.4 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 34 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 26633 REMARK 3 NUMBER OF RESTRAINTS : 33906 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 ANGLE DISTANCES (A) : 0.022 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.024 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.015 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.016 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.046 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.005 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.034 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.085 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: ANISOTROPIC REFINEMENT REDUCED FREE R REMARK 3 (NO CUTOFF) BY ? REMARK 4 REMARK 4 3G46 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-FEB-09. REMARK 100 THE DEPOSITION ID IS D_1000051400. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 07-NOV-05 REMARK 200 TEMPERATURE (KELVIN) : 110.0 REMARK 200 PH : 7.50 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 14-BM-C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 160199 REMARK 200 RESOLUTION RANGE HIGH (A) : 0.910 REMARK 200 RESOLUTION RANGE LOW (A) : 46.300 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 77.9 REMARK 200 DATA REDUNDANCY : 4.000 REMARK 200 R MERGE (I) : 0.07500 REMARK 200 R SYM (I) : 0.07500 REMARK 200 FOR THE DATA SET : 20.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 0.91 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.01 REMARK 200 COMPLETENESS FOR SHELL (%) : 59.3 REMARK 200 DATA REDUNDANCY IN SHELL : 2.10 REMARK 200 R MERGE FOR SHELL (I) : 0.18900 REMARK 200 R SYM FOR SHELL (I) : 0.18900 REMARK 200 FOR SHELL : 4.700 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 (%): 42.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.12 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.5-2.5M PHOSPHATE BUFFER, PH 7.50, REMARK 280 SMALL TUBES, TEMPERATURE 298K, MICROBATCH, TEMPERATURE 296K 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 46.26800 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 21.74350 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 46.26800 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 21.74350 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: BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND 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 300 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 300 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 300 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 300 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 300 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 300 REMARK 300 APPLY THE FOLLOWING TO CHAINS: A, B REMARK 300 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 300 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 300 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 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: 5950 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12300 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -56.0 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 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 LYS B 23 NZ 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 B 19 NE - CZ - NH2 ANGL. DEV. = -5.2 DEGREES REMARK 500 ARG B 67 NE - CZ - NH1 ANGL. DEV. = 4.5 DEGREES REMARK 500 ARG B 67 NE - CZ - NH2 ANGL. DEV. = -5.0 DEGREES REMARK 500 TRP B 135 CD1 - NE1 - CE2 ANGL. DEV. = 7.4 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 ASN A 126 38.55 75.79 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 90.0 REMARK 620 3 HEM A 147 NB 89.9 89.2 REMARK 620 4 HEM A 147 NC 89.3 179.2 90.7 REMARK 620 5 HEM A 147 ND 89.9 90.2 179.4 89.8 REMARK 620 6 CMO A 148 C 176.4 93.7 90.1 87.1 90.2 REMARK 620 N 1 2 3 4 5 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 89.8 REMARK 620 3 HEM B 147 NB 89.2 89.4 REMARK 620 4 HEM B 147 NC 89.1 178.9 90.5 REMARK 620 5 HEM B 147 ND 89.3 89.8 178.4 90.3 REMARK 620 6 CMO B 148 C 176.7 93.5 90.8 87.6 90.7 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 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 XE A 149 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE XE A 151 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 147 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO B 148 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE XE B 150 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE XE B 151 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3SDH RELATED DB: PDB REMARK 900 CO HBI REMARK 900 RELATED ID: 4SDH RELATED DB: PDB REMARK 900 DEOXY HBI REMARK 900 RELATED ID: 3G4Q RELATED DB: PDB REMARK 900 CHLOROFORM CHCL3 REMARK 900 RELATED ID: 3G4R RELATED DB: PDB REMARK 900 1,2-DICHLOROETHANE REMARK 900 RELATED ID: 3G4U RELATED DB: PDB REMARK 900 DICHLOROPROPANE REMARK 900 RELATED ID: 3G4V RELATED DB: PDB REMARK 900 CHLOROPENTANE REMARK 900 RELATED ID: 3G4W RELATED DB: PDB REMARK 900 CHLOROBENZENE REMARK 900 RELATED ID: 3G4Y RELATED DB: PDB REMARK 900 HBI-CO WITH CHLOROMETHYLBENZENE REMARK 900 RELATED ID: 3G52 RELATED DB: PDB REMARK 900 HBI-CO WITH CHLOROETHYLBENZENE REMARK 900 RELATED ID: 3G53 RELATED DB: PDB REMARK 900 1-CHLOROPROPYL BENZENE DBREF 3G46 A 1 146 UNP P02213 GLB1_SCAIN 1 146 DBREF 3G46 B 1 146 UNP P02213 GLB1_SCAIN 1 146 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 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 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 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 XE A 149 2 HET XE A 150 1 HET XE A 151 1 HET HEM B 147 43 HET CMO B 148 2 HET XE B 149 1 HET XE B 150 2 HET XE B 151 1 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM CMO CARBON MONOXIDE HETNAM XE XENON HETSYN HEM HEME FORMUL 3 HEM 2(C34 H32 FE N4 O4) FORMUL 4 CMO 2(C O) FORMUL 5 XE 6(XE) FORMUL 13 HOH *432(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 ARG A 104 1 19 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 LEU A 146 1 19 HELIX 11 11 SER B 2 ALA B 8 1 7 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 GLN B 59 ALA B 62 5 4 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 145 1 18 LINK NE2 HIS A 101 FE HEM A 147 1555 1555 2.05 LINK FE HEM A 147 C CMO A 148 1555 1555 1.78 LINK NE2 HIS B 101 FE HEM B 147 1555 1555 2.05 LINK FE HEM B 147 C CMO B 148 1555 1555 1.78 SITE 1 AC1 20 TYR A 50 PHE A 51 ARG A 53 HIS A 69 SITE 2 AC1 20 LEU A 73 ASN A 100 HIS A 101 ARG A 104 SITE 3 AC1 20 GLU A 110 PHE A 111 CMO A 148 XE A 151 SITE 4 AC1 20 HOH A1022 HOH A1023 HOH A1173 HOH A1352 SITE 5 AC1 20 LYS B 96 ASN B 100 HOH B1033 HOH B1291 SITE 1 AC2 5 MET A 37 PHE A 51 HIS A 69 LEU A 73 SITE 2 AC2 5 HEM A 147 SITE 1 AC3 1 LEU A 36 SITE 1 AC4 3 PHE A 97 PHE A 111 HEM A 147 SITE 1 AC5 20 LYS A 96 ASN A 100 HOH A1118 TYR B 50 SITE 2 AC5 20 PHE B 51 ARG B 53 LEU B 73 PHE B 97 SITE 3 AC5 20 ASN B 100 HIS B 101 ARG B 104 GLU B 110 SITE 4 AC5 20 PHE B 111 CMO B 148 XE B 151 HOH B1020 SITE 5 AC5 20 HOH B1037 HOH B1042 HOH B1102 HOH B1291 SITE 1 AC6 5 MET B 37 PHE B 51 HIS B 69 LEU B 73 SITE 2 AC6 5 HEM B 147 SITE 1 AC7 1 MET B 74 SITE 1 AC8 3 PHE B 97 PHE B 111 HEM B 147 CRYST1 92.536 43.487 82.853 90.00 122.25 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 0.010807 0.000000 0.006818 0.00000 SCALE2 0.000000 0.022995 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014271 0.00000