HEADER OXYGEN TRANSPORT 16-AUG-85 2LHB TITLE REFINEMENT OF A MOLECULAR MODEL FOR LAMPREY HEMOGLOBIN FROM PETROMYZON TITLE 2 MARINUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEMOGLOBIN V (CYANO MET); COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PETROMYZON MARINUS; SOURCE 3 ORGANISM_COMMON: SEA LAMPREY; SOURCE 4 ORGANISM_TAXID: 7757 KEYWDS OXYGEN TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR R.B.HONZATKO,W.A.HENDRICKSON,W.E.LOVE REVDAT 6 21-FEB-24 2LHB 1 SEQADV LINK REVDAT 5 29-NOV-17 2LHB 1 HELIX REVDAT 4 13-JUL-11 2LHB 1 VERSN REVDAT 3 24-FEB-09 2LHB 1 VERSN REVDAT 2 15-APR-91 2LHB 1 HET SITE REVDAT 1 21-JAN-86 2LHB 0 SPRSDE 21-JAN-86 2LHB 1LHB JRNL AUTH R.B.HONZATKO,W.A.HENDRICKSON,W.E.LOVE JRNL TITL REFINEMENT OF A MOLECULAR MODEL FOR LAMPREY HEMOGLOBIN FROM JRNL TITL 2 PETROMYZON MARINUS. JRNL REF J.MOL.BIOL. V. 184 147 1985 JRNL REFN ISSN 0022-2836 JRNL PMID 4032476 JRNL DOI 10.1016/0022-2836(85)90049-X REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH W.A.HENDRICKSON,W.E.LOVE,J.KARLE REMARK 1 TITL CRYSTAL STRUCTURE ANALYSIS OF SEA LAMPREY HEMOGLOBIN AT 2 REMARK 1 TITL 2 ANGSTROMS RESOLUTION REMARK 1 REF J.MOL.BIOL. V. 74 331 1973 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 2 REMARK 1 AUTH W.A.HENDRICKSON,W.E.LOVE REMARK 1 TITL STRUCTURE OF LAMPREY HAEMOGLOBIN REMARK 1 REF NATURE NEW BIOL. V. 232 197 1971 REMARK 1 REFN ISSN 0369-4887 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : NULL REMARK 3 AUTHORS : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 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 SET) : 0.142 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 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1152 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 45 REMARK 3 SOLVENT ATOMS : 215 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 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.014 REMARK 3 BOND ANGLES (DEGREES) : 1.500 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : 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 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 ELEVEN RESIDUES ARE PRESENTED WITH ALTERNATE CONFORMATIONS REMARK 3 BASED ON DENSITY. LYS 18 HAS NO DENSITY BEYOND CB AND LYS REMARK 3 54 HAS NO DENSITY BEYOND CG. THE SIDE CHAINS OF THESE TWO REMARK 3 RESIDUES WERE MODELED USING REASONABLE STEREOCHEMICAL REMARK 3 CRITERIA AND ARE PRESENTED WITH ALTERNATE CONFORMATIONS. REMARK 3 SEE THE JRNL REFERENCE ABOVE FOR FURTHER DETAILS. IN ALL REMARK 3 OF THESE RESIDUES HYDROGEN ATOMS ARE INCLUDED FOR ONE REMARK 3 CONFORMATION ONLY. REMARK 3 REMARK 3 RESIDUE 29 HAS AN EQUAL MIX OF THR AND ASP ACCORDING TO REMARK 3 SEQUENCE WORK. THIS RESIDUE IS PRESENTED BELOW WITH REMARK 3 CONFORMATION A REPRESENTING THR AND CONFORMATION B REMARK 3 REPRESENTING ASP. PLEASE NOTE, HOWEVER, THAT BOTH REMARK 3 CONFORMATIONS HAVE BEEN ASSIGNED RESIDUE NAME THR ON THE REMARK 3 ATOM AND SEQRES RECORDS BELOW. REMARK 4 REMARK 4 2LHB 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_1000178311. 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: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.59 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.07 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 22.28500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 15.67000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 48.31000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 15.67000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 22.28500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 48.31000 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 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 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 HE2 HIS A 105 FE HEM A 151 1.10 REMARK 500 HG SER A 67 H VAL A 70 1.19 REMARK 500 HG SER A 102 H ALA A 148 1.31 REMARK 500 HH22 ARG A 20 O HOH A 352 1.42 REMARK 500 HD21 ASN A 100 O HOH A 154 1.53 REMARK 500 HH21 ARG A 99 O HOH A 168 1.55 REMARK 500 OE1 GLU A 75 O HOH A 365 2.14 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 HH22 ARG A 99 O HOH A 194 1556 1.29 REMARK 500 OE1 GLU A 31 HZ3 LYS A 40 2565 1.40 REMARK 500 HG1 THR A 91 NZ LYS A 107 4555 1.55 REMARK 500 NH2 ARG A 99 O HOH A 194 1556 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 20 NE - CZ - NH2 ANGL. DEV. = 4.2 DEGREES REMARK 500 ASP A 29 CB - CG - OD1 ANGL. DEV. = 5.9 DEGREES REMARK 500 ARG A 71 NE - CZ - NH1 ANGL. DEV. = 7.2 DEGREES REMARK 500 ARG A 71 NE - CZ - NH2 ANGL. DEV. = -3.4 DEGREES REMARK 500 ARG A 76 CD - NE - CZ ANGL. DEV. = 9.2 DEGREES REMARK 500 ARG A 76 NE - CZ - NH2 ANGL. DEV. = 3.8 DEGREES REMARK 500 MET A 88 CG - SD - CE ANGL. DEV. = 10.5 DEGREES REMARK 500 ARG A 99 CG - CD - NE ANGL. DEV. = -31.4 DEGREES REMARK 500 ARG A 99 CD - NE - CZ ANGL. DEV. = 10.0 DEGREES REMARK 500 ARG A 99 NE - CZ - NH1 ANGL. DEV. = 5.5 DEGREES REMARK 500 ARG A 99 NE - CZ - NH2 ANGL. DEV. = -5.0 DEGREES REMARK 500 ASP A 112 CB - CG - OD1 ANGL. DEV. = 7.0 DEGREES REMARK 500 ASP A 125 CB - CG - OD1 ANGL. DEV. = 5.8 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 29 34.14 -96.43 REMARK 500 ALA A 128 86.77 -169.89 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 151 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 105 NE2 REMARK 620 2 HEM A 151 NA 98.8 REMARK 620 3 HEM A 151 NB 95.2 89.5 REMARK 620 4 HEM A 151 NC 86.0 175.2 90.3 REMARK 620 5 HEM A 151 ND 89.0 89.1 175.8 90.8 REMARK 620 6 CYN A 150 C 174.8 86.2 86.3 89.0 89.7 REMARK 620 7 CYN A 150 N 164.8 95.4 79.6 79.8 96.6 11.4 REMARK 620 N 1 2 3 4 5 6 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: HEM REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: NULL REMARK 999 REMARK 999 SEQUENCE REMARK 999 THERE ARE TWO CHANGES IN THE SEQUENCE IN THIS ENTRY FROM REMARK 999 THAT DETERMINED CHEMICALLY (S.L.LI, A.RIGGS, J.BIOL.CHEM., REMARK 999 V. 245, P. 6149 (1970)). LEU 98 AND ARG 99 WERE INSERTED REMARK 999 AFTER LYS 97, WHILE MET 138 AND SER 139 HAVE REPLACED AN REMARK 999 ARG. DBREF 2LHB A 1 149 UNP P02208 GLB5_PETMA 1 149 SEQADV 2LHB GLU A 63 UNP P02208 GLN 63 CONFLICT SEQADV 2LHB ASP A 82 UNP P02208 ASN 82 CONFLICT SEQADV 2LHB ASN A 100 UNP P02208 ASP 100 CONFLICT SEQADV 2LHB GLU A 114 UNP P02208 GLN 114 CONFLICT SEQRES 1 A 149 PRO ILE VAL ASP THR GLY SER VAL ALA PRO LEU SER ALA SEQRES 2 A 149 ALA GLU LYS THR LYS ILE ARG SER ALA TRP ALA PRO VAL SEQRES 3 A 149 TYR SER THR TYR GLU THR SER GLY VAL ASP ILE LEU VAL SEQRES 4 A 149 LYS PHE PHE THR SER THR PRO ALA ALA GLN GLU PHE PHE SEQRES 5 A 149 PRO LYS PHE LYS GLY LEU THR THR ALA ASP GLU LEU LYS SEQRES 6 A 149 LYS SER ALA ASP VAL ARG TRP HIS ALA GLU ARG ILE ILE SEQRES 7 A 149 ASN ALA VAL ASP ASP ALA VAL ALA SER MET ASP ASP THR SEQRES 8 A 149 GLU LYS MET SER MET LYS LEU ARG ASN LEU SER GLY LYS SEQRES 9 A 149 HIS ALA LYS SER PHE GLN VAL ASP PRO GLU TYR PHE LYS SEQRES 10 A 149 VAL LEU ALA ALA VAL ILE ALA ASP THR VAL ALA ALA GLY SEQRES 11 A 149 ASP ALA GLY PHE GLU LYS LEU MET SER MET ILE CYS ILE SEQRES 12 A 149 LEU LEU ARG SER ALA TYR HET CYN A 150 2 HET HEM A 151 43 HETNAM CYN CYANIDE ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 2 CYN C N 1- FORMUL 3 HEM C34 H32 FE N4 O4 FORMUL 4 HOH *215(H2 O) HELIX 1 A ALA A 13 SER A 28 1 16 HELIX 2 B TYR A 30 SER A 44 1 15 HELIX 3 C PRO A 46 PHE A 51 5 6 HELIX 4 D ALA A 61 LYS A 66 1 6 HELIX 5 E ALA A 68 ALA A 86 1 19 HELIX 6 F THR A 91 PHE A 109 1 19 HELIX 7 G PRO A 113 VAL A 127 1 15 HELIX 8 H ALA A 132 ALA A 148 1 17 LINK NE2 HIS A 105 FE HEM A 151 1555 1555 2.10 LINK C CYN A 150 FE HEM A 151 1555 1555 1.90 LINK N CYN A 150 FE HEM A 151 1555 1555 2.99 SITE 1 HEM 16 PHE A 52 HIS A 73 ARG A 76 ILE A 77 SITE 2 HEM 16 LEU A 101 SER A 102 LYS A 104 HIS A 105 SITE 3 HEM 16 ALA A 106 PHE A 109 VAL A 111 TYR A 115 SITE 4 HEM 16 PHE A 116 LEU A 119 TYR A 149 HEM A 151 CRYST1 44.570 96.620 31.340 90.00 90.00 90.00 P 21 21 21 4 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 0.022437 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010350 0.000000 0.00000 SCALE3 0.000000 0.000000 0.031908 0.00000