HEADER OXYGEN BINDING 12-NOV-20 7DGN TITLE THE CO-BOUND DIMERIC STRUCTURE OF K79H/G80A/H81A MYOGLOBIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: MYOGLOBIN; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: EQUUS CABALLUS; SOURCE 3 ORGANISM_COMMON: HORSE; SOURCE 4 ORGANISM_TAXID: 9796; SOURCE 5 GENE: MB; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS OXYGEN STORAGE, OXYGEN BINDING EXPDTA X-RAY DIFFRACTION AUTHOR S.NAGAO,A.IDOMOTO,N.SHIBATA,Y.HIGUCHI,S.HIROTA REVDAT 3 29-NOV-23 7DGN 1 REMARK REVDAT 2 03-MAR-21 7DGN 1 JRNL REVDAT 1 17-FEB-21 7DGN 0 JRNL AUTH S.NAGAO,A.IDOMOTO,N.SHIBATA,Y.HIGUCHI,S.HIROTA JRNL TITL RATIONAL DESIGN OF METAL-BINDING SITES IN DOMAIN-SWAPPED JRNL TITL 2 MYOGLOBIN DIMERS. JRNL REF J.INORG.BIOCHEM. V. 217 11374 2021 JRNL REFN ISSN 0162-0134 JRNL PMID 33578251 JRNL DOI 10.1016/J.JINORGBIO.2021.111374 REMARK 2 REMARK 2 RESOLUTION. 2.35 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0258 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.35 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 47.01 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 12450 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 + TEST SET) : 0.205 REMARK 3 R VALUE (WORKING SET) : 0.202 REMARK 3 FREE R VALUE : 0.269 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.500 REMARK 3 FREE R VALUE TEST SET COUNT : 587 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.35 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.41 REMARK 3 REFLECTION IN BIN (WORKING SET) : 894 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.79 REMARK 3 BIN R VALUE (WORKING SET) : 0.2990 REMARK 3 BIN FREE R VALUE SET COUNT : 41 REMARK 3 BIN FREE R VALUE : 0.2820 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2392 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 90 REMARK 3 SOLVENT ATOMS : 68 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 46.94 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 3.41000 REMARK 3 B22 (A**2) : -4.47000 REMARK 3 B33 (A**2) : 1.06000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.513 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.290 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.249 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 10.924 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.954 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.913 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2554 ; 0.010 ; 0.013 REMARK 3 BOND LENGTHS OTHERS (A): 2394 ; 0.001 ; 0.017 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3454 ; 1.617 ; 1.695 REMARK 3 BOND ANGLES OTHERS (DEGREES): 5560 ; 1.296 ; 1.618 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 304 ; 5.620 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 110 ;36.950 ;24.545 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 450 ;16.844 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 4 ;14.379 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 310 ; 0.074 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2838 ; 0.008 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 514 ; 0.004 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 1222 ; 4.079 ; 4.774 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 1220 ; 4.070 ; 4.767 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1524 ; 5.841 ; 7.151 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): 1524 ; 5.829 ; 7.152 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1332 ; 4.853 ; 5.174 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): 1328 ; 4.778 ; 5.176 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): 1930 ; 7.306 ; 7.500 REMARK 3 LONG RANGE B REFINED ATOMS (A**2): 2960 ; 9.521 ;55.751 REMARK 3 LONG RANGE B OTHER ATOMS (A**2): 2956 ; 9.523 ;55.735 REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 7DGN COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 13-NOV-20. REMARK 100 THE DEPOSITION ID IS D_1300018255. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-JUL-18 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SPRING-8 REMARK 200 BEAMLINE : BL38B1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.000 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 S 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13080 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.350 REMARK 200 RESOLUTION RANGE LOW (A) : 47.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 6.000 REMARK 200 R MERGE (I) : 0.09600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 11.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.36 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.41 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 5.50 REMARK 200 R MERGE FOR SHELL (I) : 0.85100 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: 3VM9 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.45 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.21 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M SODIUM ACETATE, 0.1 M TRIS-HCL, REMARK 280 25% (W/V) PEG 6,000, PH 7.0, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 277K 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 28.48300 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 41.50150 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 31.73150 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 41.50150 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 28.48300 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 31.73150 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 9020 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 14250 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -115.0 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 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 OD2 ASP A 4 O HOH A 301 2.05 REMARK 500 OD2 ASP A 44 O HOH A 302 2.19 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 20 47.09 -154.30 REMARK 500 LYS A 96 -63.45 -90.35 REMARK 500 PHE A 123 58.23 -159.62 REMARK 500 LYS B 98 56.73 72.87 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 CO B 203 CO REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 79 ND1 REMARK 620 2 HOH A 334 O 103.5 REMARK 620 3 HIS B 82 NE2 102.5 107.4 REMARK 620 4 ASP B 141 OD2 92.5 125.4 119.6 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CO A 203 CO REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 82 NE2 REMARK 620 2 ASP A 141 OD2 102.2 REMARK 620 3 HIS B 79 ND1 99.5 94.8 REMARK 620 4 HOH B 328 O 123.6 125.4 104.0 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A 201 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 93 NE2 REMARK 620 2 HEM A 201 NA 91.2 REMARK 620 3 HEM A 201 NB 87.9 90.6 REMARK 620 4 HEM A 201 NC 93.1 174.5 86.2 REMARK 620 5 HEM A 201 ND 97.8 90.7 174.1 92.1 REMARK 620 6 O B 201 O 179.5 88.3 92.2 87.4 82.2 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 202 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 O A 202 O REMARK 620 2 HEM B 202 NA 86.4 REMARK 620 3 HEM B 202 NB 89.9 88.9 REMARK 620 4 HEM B 202 NC 85.5 170.2 85.5 REMARK 620 5 HEM B 202 ND 84.6 90.1 174.5 94.7 REMARK 620 6 HIS B 93 NE2 179.9 93.5 90.1 94.6 95.4 REMARK 620 N 1 2 3 4 5 DBREF 7DGN A 1 153 UNP P68082 MYG_HORSE 2 154 DBREF 7DGN B 1 153 UNP P68082 MYG_HORSE 2 154 SEQADV 7DGN HIS A 79 UNP P68082 LYS 80 ENGINEERED MUTATION SEQADV 7DGN ALA A 80 UNP P68082 GLY 81 ENGINEERED MUTATION SEQADV 7DGN ALA A 81 UNP P68082 HIS 82 ENGINEERED MUTATION SEQADV 7DGN HIS B 79 UNP P68082 LYS 80 ENGINEERED MUTATION SEQADV 7DGN ALA B 80 UNP P68082 GLY 81 ENGINEERED MUTATION SEQADV 7DGN ALA B 81 UNP P68082 HIS 82 ENGINEERED MUTATION SEQRES 1 A 153 GLY LEU SER ASP GLY GLU TRP GLN GLN VAL LEU ASN VAL SEQRES 2 A 153 TRP GLY LYS VAL GLU ALA ASP ILE ALA GLY HIS GLY GLN SEQRES 3 A 153 GLU VAL LEU ILE ARG LEU PHE THR GLY HIS PRO GLU THR SEQRES 4 A 153 LEU GLU LYS PHE ASP LYS PHE LYS HIS LEU LYS THR GLU SEQRES 5 A 153 ALA GLU MET LYS ALA SER GLU ASP LEU LYS LYS HIS GLY SEQRES 6 A 153 THR VAL VAL LEU THR ALA LEU GLY GLY ILE LEU LYS LYS SEQRES 7 A 153 HIS ALA ALA HIS GLU ALA GLU LEU LYS PRO LEU ALA GLN SEQRES 8 A 153 SER HIS ALA THR LYS HIS LYS ILE PRO ILE LYS TYR LEU SEQRES 9 A 153 GLU PHE ILE SER ASP ALA ILE ILE HIS VAL LEU HIS SER SEQRES 10 A 153 LYS HIS PRO GLY ASP PHE GLY ALA ASP ALA GLN GLY ALA SEQRES 11 A 153 MET THR LYS ALA LEU GLU LEU PHE ARG ASN ASP ILE ALA SEQRES 12 A 153 ALA LYS TYR LYS GLU LEU GLY PHE GLN GLY SEQRES 1 B 153 GLY LEU SER ASP GLY GLU TRP GLN GLN VAL LEU ASN VAL SEQRES 2 B 153 TRP GLY LYS VAL GLU ALA ASP ILE ALA GLY HIS GLY GLN SEQRES 3 B 153 GLU VAL LEU ILE ARG LEU PHE THR GLY HIS PRO GLU THR SEQRES 4 B 153 LEU GLU LYS PHE ASP LYS PHE LYS HIS LEU LYS THR GLU SEQRES 5 B 153 ALA GLU MET LYS ALA SER GLU ASP LEU LYS LYS HIS GLY SEQRES 6 B 153 THR VAL VAL LEU THR ALA LEU GLY GLY ILE LEU LYS LYS SEQRES 7 B 153 HIS ALA ALA HIS GLU ALA GLU LEU LYS PRO LEU ALA GLN SEQRES 8 B 153 SER HIS ALA THR LYS HIS LYS ILE PRO ILE LYS TYR LEU SEQRES 9 B 153 GLU PHE ILE SER ASP ALA ILE ILE HIS VAL LEU HIS SER SEQRES 10 B 153 LYS HIS PRO GLY ASP PHE GLY ALA ASP ALA GLN GLY ALA SEQRES 11 B 153 MET THR LYS ALA LEU GLU LEU PHE ARG ASN ASP ILE ALA SEQRES 12 B 153 ALA LYS TYR LYS GLU LEU GLY PHE GLN GLY HET HEM A 201 43 HET O A 202 1 HET CO A 203 1 HET O B 201 1 HET HEM B 202 43 HET CO B 203 1 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM O OXYGEN ATOM HETNAM CO COBALT (II) ION HETSYN HEM HEME FORMUL 3 HEM 2(C34 H32 FE N4 O4) FORMUL 4 O 2(O) FORMUL 5 CO 2(CO 2+) FORMUL 9 HOH *68(H2 O) HELIX 1 AA1 SER A 3 ALA A 19 1 17 HELIX 2 AA2 ASP A 20 HIS A 36 1 17 HELIX 3 AA3 PRO A 37 PHE A 43 5 7 HELIX 4 AA4 THR A 51 ALA A 57 1 7 HELIX 5 AA5 SER A 58 LYS A 96 1 39 HELIX 6 AA6 PRO A 100 HIS A 119 1 20 HELIX 7 AA7 PRO A 120 PHE A 123 5 4 HELIX 8 AA8 GLY A 124 LEU A 149 1 26 HELIX 9 AA9 SER B 3 ALA B 19 1 17 HELIX 10 AB1 ASP B 20 HIS B 36 1 17 HELIX 11 AB2 THR B 39 PHE B 43 5 5 HELIX 12 AB3 THR B 51 SER B 58 1 8 HELIX 13 AB4 SER B 58 LYS B 96 1 39 HELIX 14 AB5 PRO B 100 HIS B 119 1 20 HELIX 15 AB6 GLY B 124 LEU B 149 1 26 LINK ND1 HIS A 79 CO CO B 203 1555 1555 2.11 LINK NE2 HIS A 82 CO CO A 203 1555 1555 2.13 LINK NE2 HIS A 93 FE HEM A 201 1555 1555 2.09 LINK OD2 ASP A 141 CO CO A 203 1555 1555 2.05 LINK FE HEM A 201 O O B 201 1555 1555 1.99 LINK O O A 202 FE HEM B 202 1555 1555 2.00 LINK CO CO A 203 ND1 HIS B 79 1555 1555 2.14 LINK CO CO A 203 O HOH B 328 1555 1555 1.93 LINK O HOH A 334 CO CO B 203 1555 1555 1.92 LINK NE2 HIS B 82 CO CO B 203 1555 1555 2.11 LINK NE2 HIS B 93 FE HEM B 202 1555 1555 2.07 LINK OD2 ASP B 141 CO CO B 203 1555 1555 2.03 CRYST1 56.966 63.463 83.003 90.00 90.00 90.00 P 21 21 21 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 0.017554 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015757 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012048 0.00000