HEADER OXYGEN TRANSPORT 23-JUN-93 3SDH TITLE HIGH RESOLUTION CRYSTALLOGRAPHIC ANALYSIS OF A COOPERATIVE DIMERIC TITLE 2 HEMOGLOBIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEMOGLOBIN I (CARBONMONOXY); COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SCAPHARCA INAEQUIVALVIS; SOURCE 3 ORGANISM_COMMON: ARK CLAM; SOURCE 4 ORGANISM_TAXID: 6561 KEYWDS OXYGEN TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR W.E.ROYERJUNIOR REVDAT 7 28-FEB-24 3SDH 1 REMARK LINK REVDAT 6 14-AUG-19 3SDH 1 REMARK REVDAT 5 17-JUL-19 3SDH 1 REMARK REVDAT 4 24-FEB-09 3SDH 1 VERSN REVDAT 3 01-APR-03 3SDH 1 JRNL REVDAT 2 15-OCT-94 3SDH 1 JRNL REVDAT 1 31-OCT-93 3SDH 0 SPRSDE 15-OCT-93 3SDH 1SDH JRNL AUTH W.E.ROYER JR. JRNL TITL HIGH-RESOLUTION CRYSTALLOGRAPHIC ANALYSIS OF A CO-OPERATIVE JRNL TITL 2 DIMERIC HEMOGLOBIN. JRNL REF J.MOL.BIOL. V. 235 657 1994 JRNL REFN ISSN 0022-2836 JRNL PMID 8289287 JRNL DOI 10.1006/JMBI.1994.1019 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH W.E.ROYER JUNIOR,W.A.HENDRICKSON,E.CHIANCONE REMARK 1 TITL STRUCTURAL TRANSITIONS UPON LIGAND BINDING IN A COOPERATIVE REMARK 1 TITL 2 DIMERIC HEMOGLOBIN REMARK 1 REF SCIENCE V. 249 518 1990 REMARK 1 REFN ISSN 0036-8075 REMARK 1 REFERENCE 2 REMARK 1 AUTH W.E.ROYER JUNIOR,W.A.HENDRICKSON,E.CHIANCONE REMARK 1 TITL THE 2.4 ANGSTROMS CRYSTAL STRUCTURE OF SCAPHARCA DIMERIC REMARK 1 TITL 2 HEMOGLOBIN. COOPERATIVELY BASED ON DIRECTLY COMMUNICATING REMARK 1 TITL 3 HEMES AT A NOVEL SUBUNIT INTERFACE REMARK 1 REF J.BIOL.CHEM. V. 264 21052 1989 REMARK 1 REFN ISSN 0021-9258 REMARK 2 REMARK 2 RESOLUTION. 1.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PROLSQ REMARK 3 AUTHORS : KONNERT,HENDRICKSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : NULL REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : 0.159 REMARK 3 R VALUE (WORKING SET) : 0.159 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL WITH ALL DATA. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2232 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 90 REMARK 3 SOLVENT ATOMS : 265 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : NULL ; NULL REMARK 3 ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL 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 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 3SDH COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000179146. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL 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) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL 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: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.87 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.27 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL 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 46.62500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 21.99000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 46.62500 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 21.99000 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 TRANSFORMATION PRESENTED ON *MTRIX* RECORDS BELOW WILL REMARK 300 YIELD APPROXIMATE COORDINATES FOR CHAIN *A* WHEN APPLIED TO REMARK 300 CHAIN *B*. 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: 4870 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12190 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -55.0 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: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OE1 GLN B 9 O HOH B 378 2.17 REMARK 500 REMARK 500 REMARK: NULL 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 19 NE - CZ - NH1 ANGL. DEV. = -3.5 DEGREES REMARK 500 ARG B 19 NE - CZ - NH2 ANGL. DEV. = -4.2 DEGREES REMARK 500 ARG B 67 NE - CZ - NH1 ANGL. DEV. = 4.2 DEGREES REMARK 500 ASP B 88 CB - CG - OD1 ANGL. DEV. = -6.2 DEGREES REMARK 500 ASP B 89 CB - CG - OD2 ANGL. DEV. = -5.9 DEGREES REMARK 500 GLU B 110 CG - CD - OE1 ANGL. DEV. = 12.6 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 ASN A 126 32.59 71.79 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 88.8 REMARK 620 3 HEM A 147 NB 91.5 89.1 REMARK 620 4 HEM A 147 NC 90.2 178.7 90.2 REMARK 620 5 HEM A 147 ND 88.2 90.9 179.6 89.9 REMARK 620 6 CMO A 501 C 177.6 89.5 90.2 91.5 90.2 REMARK 620 7 CMO A 501 O 171.9 98.8 91.3 82.2 89.0 9.4 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 89.3 REMARK 620 3 HEM B 147 NB 88.2 90.2 REMARK 620 4 HEM B 147 NC 91.5 179.0 89.3 REMARK 620 5 HEM B 147 ND 90.9 89.9 179.1 90.6 REMARK 620 6 CMO B 501 C 178.9 90.1 90.8 89.1 90.0 REMARK 620 7 CMO B 501 O 173.9 96.5 90.0 82.6 90.8 6.5 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 501 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 501 DBREF 3SDH A 1 146 UNP P02213 GLB1_SCAIN 1 146 DBREF 3SDH 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 ASN 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 ASN 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 501 2 HET HEM B 147 43 HET CMO B 501 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 *265(H2 O) HELIX 1 PRA VAL A 3 GLN A 9 11ST TURN-ALPHA, 2ND TURN 3/10 7 HELIX 2 AA ALA A 12 ILE A 25 1 14 HELIX 3 BA LYS A 29 ASP A 43 1 15 HELIX 4 CA GLN A 45 TYR A 50 5 6 HELIX 5 EA ASP A 64 ASP A 82 1 19 HELIX 6 FA PRO A 87 THR A 103 1 17 HELIX 7 GA ALA A 108 SER A 124 1KINK AT PRO 117 17 HELIX 8 HA ASP A 129 ALA A 144 1 16 HELIX 9 PRB VAL B 3 GLN B 9 11ST TURN-ALPHA, 2ND TURN 3/10 7 HELIX 10 AB ALA B 12 ILE B 25 1 14 HELIX 11 BB LYS B 29 ASP B 43 1 15 HELIX 12 CB GLN B 45 TYR B 50 5 6 HELIX 13 EB ASP B 64 ASP B 82 1 19 HELIX 14 FB PRO B 87 THR B 103 1 17 HELIX 15 GB ALA B 108 SER B 124 1KINK AT PRO 117 17 HELIX 16 HB ASP B 129 ALA B 144 1 16 LINK NE2 HIS A 101 FE HEM A 147 1555 1555 2.09 LINK FE HEM A 147 C CMO A 501 1555 1555 1.83 LINK FE HEM A 147 O CMO A 501 1555 1555 2.87 LINK NE2 HIS B 101 FE HEM B 147 1555 1555 2.14 LINK FE HEM B 147 C CMO B 501 1555 1555 1.84 LINK FE HEM B 147 O CMO B 501 1555 1555 2.89 SITE 1 AC1 18 TYR A 50 PHE A 51 ARG A 53 LEU A 73 SITE 2 AC1 18 PHE A 97 ASN A 100 HIS A 101 ARG A 104 SITE 3 AC1 18 GLU A 110 PHE A 111 HOH A 208 HOH A 216 SITE 4 AC1 18 HOH A 255 HOH A 280 CMO A 501 LYS B 96 SITE 5 AC1 18 ASN B 100 HOH B 259 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 19 LYS A 96 ASN A 100 TYR B 50 PHE B 51 SITE 2 AC3 19 ARG B 53 LEU B 73 PHE B 97 ASN B 100 SITE 3 AC3 19 HIS B 101 ARG B 104 GLU B 110 PHE B 111 SITE 4 AC3 19 HOH B 207 HOH B 209 HOH B 250 HOH B 259 SITE 5 AC3 19 HOH B 289 HOH B 432 CMO B 501 SITE 1 AC4 5 MET B 37 PHE B 51 HIS B 69 LEU B 73 SITE 2 AC4 5 HEM B 147 CRYST1 93.250 43.980 83.500 90.00 122.03 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 0.010724 0.000000 0.006709 0.00000 SCALE2 0.000000 0.022738 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014127 0.00000 MTRIX1 1 -0.336300 -0.269500 -0.902400 60.83000 1 MTRIX2 1 -0.257800 -0.895300 0.363400 2.57000 1 MTRIX3 1 -0.905800 0.354800 0.231600 43.88000 1