HEADER OXYGEN STORAGE 02-AUG-10 3O89 TITLE CRYSTAL STRUCTURE OF SPERM WHALE MYOGLOBIN G65T COMPND MOL_ID: 1; COMPND 2 MOLECULE: MYOGLOBIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PHYSETER CATODON; SOURCE 3 ORGANISM_COMMON: SPERM WHALE; SOURCE 4 ORGANISM_TAXID: 9755; SOURCE 5 GENE: MB; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS OXYGEN STORAGE EXPDTA X-RAY DIFFRACTION AUTHOR X.HUANG,L.LOVELACE,L.LEBIODA REVDAT 3 21-FEB-24 3O89 1 REMARK SEQADV LINK REVDAT 2 08-NOV-17 3O89 1 REMARK REVDAT 1 07-DEC-11 3O89 0 JRNL AUTH X.HUANG,J.DU,J.DAWSON,L.LEBIODA JRNL TITL INVESTIGATIONS OF STRUCTURAL FACTORS THAT INFLUENCE THE JRNL TITL 2 MECHANISM OF HALOPHENOL DEHALOGENATION USING JRNL TITL 3 'PEROXIDASE-LIKE' MYOGLOBIN MUTANTS AND 'MYOGLOBIN-LIKE' JRNL TITL 4 AMPHITRITE ORNATA DEHALOPEROXIDASE MUTANTS JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 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) : 1.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 31.99 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.1 REMARK 3 NUMBER OF REFLECTIONS : 83174 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) : 0.173 REMARK 3 R VALUE (WORKING SET) : 0.172 REMARK 3 FREE R VALUE : 0.183 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 4156 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) : 1.10 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.13 REMARK 3 REFLECTION IN BIN (WORKING SET) : 4475 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 75.12 REMARK 3 BIN R VALUE (WORKING SET) : 0.3200 REMARK 3 BIN FREE R VALUE SET COUNT : 241 REMARK 3 BIN FREE R VALUE : 0.3490 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1219 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 53 REMARK 3 SOLVENT ATOMS : 243 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 15.26 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.01000 REMARK 3 B22 (A**2) : 0.01000 REMARK 3 B33 (A**2) : -0.02000 REMARK 3 B12 (A**2) : 0.01000 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): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): 0.029 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.016 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 0.701 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.963 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.959 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1305 ; 0.006 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1770 ; 1.034 ; 2.061 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 152 ; 4.606 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 54 ;33.850 ;24.259 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 237 ;12.146 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 4 ;11.590 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 184 ; 0.074 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 954 ; 0.004 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 661 ; 0.201 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 879 ; 0.304 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 188 ; 0.072 ; 0.200 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): 31 ; 0.195 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 22 ; 0.091 ; 0.200 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): 773 ; 0.768 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1209 ; 1.264 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 592 ; 1.962 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 559 ; 2.946 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL 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 : 1 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 2 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 2001 A 2157 REMARK 3 RESIDUE RANGE : A 4001 A 4256 REMARK 3 ORIGIN FOR THE GROUP (A): 25.5650 -23.4690 0.5780 REMARK 3 T TENSOR REMARK 3 T11: -0.0092 T22: 0.0043 REMARK 3 T33: 0.0000 T12: -0.0066 REMARK 3 T13: -0.0016 T23: -0.0042 REMARK 3 L TENSOR REMARK 3 L11: 0.1731 L22: 0.0635 REMARK 3 L33: 0.1264 L12: 0.0577 REMARK 3 L13: 0.1435 L23: 0.0296 REMARK 3 S TENSOR REMARK 3 S11: -0.0143 S12: -0.0522 S13: 0.0056 REMARK 3 S21: -0.0114 S22: 0.0007 S23: 0.0272 REMARK 3 S31: 0.0397 S32: -0.0346 S33: 0.0137 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 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 3O89 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-AUG-10. REMARK 100 THE DEPOSITION ID IS D_1000060789. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 13-JUN-09 REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 22-ID REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 300 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO, HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 87374 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.050 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 88.8 REMARK 200 DATA REDUNDANCY : 3.700 REMARK 200 R MERGE (I) : 0.04900 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 17.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.05 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.07 REMARK 200 COMPLETENESS FOR SHELL (%) : 14.6 REMARK 200 DATA REDUNDANCY IN SHELL : 1.10 REMARK 200 R MERGE FOR SHELL (I) : 0.55600 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 60.21 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.09 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 2.6M AS, 50MM TRIS 8.5, 1MM EDTA, REMARK 280 EVAPORATION, TEMPERATURE 293K, PH 8.5 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 6 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 -X,-Y,Z REMARK 290 5555 Y,-X+Y,Z REMARK 290 6555 X-Y,X,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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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: 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 A2020 74.19 -162.78 REMARK 500 PHE A2123 47.85 -141.26 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 A2154 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A2093 NE2 REMARK 620 2 HEM A2154 NA 90.7 REMARK 620 3 HEM A2154 NB 90.8 89.9 REMARK 620 4 HEM A2154 NC 93.8 175.5 89.5 REMARK 620 5 HEM A2154 ND 93.0 89.3 176.2 90.9 REMARK 620 6 HOH A4001 O 176.6 91.7 91.6 83.9 84.6 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 2154 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 2155 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 2157 DBREF 3O89 A 2001 2153 UNP P02185 MYG_PHYCA 2 154 SEQADV 3O89 THR A 2065 UNP P02185 GLY 66 ENGINEERED MUTATION SEQRES 1 A 153 VAL LEU SER GLU GLY GLU TRP GLN LEU VAL LEU HIS VAL SEQRES 2 A 153 TRP ALA LYS VAL GLU ALA ASP VAL ALA GLY HIS GLY GLN SEQRES 3 A 153 ASP ILE LEU ILE ARG LEU PHE LYS SER HIS PRO GLU THR SEQRES 4 A 153 LEU GLU LYS PHE ASP ARG PHE LYS HIS LEU LYS THR GLU SEQRES 5 A 153 ALA GLU MET LYS ALA SER GLU ASP LEU LYS LYS HIS THR SEQRES 6 A 153 VAL THR VAL LEU THR ALA LEU GLY ALA ILE LEU LYS LYS SEQRES 7 A 153 LYS GLY HIS 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 GLU ALA ILE ILE HIS VAL LEU HIS SER SEQRES 10 A 153 ARG HIS PRO GLY ASP PHE GLY ALA ASP ALA GLN GLY ALA SEQRES 11 A 153 MET ASN LYS ALA LEU GLU LEU PHE ARG LYS ASP ILE ALA SEQRES 12 A 153 ALA LYS TYR LYS GLU LEU GLY TYR GLN GLY HET HEM A2154 43 HET SO4 A2155 5 HET SO4 A2157 5 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM SO4 SULFATE ION HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 SO4 2(O4 S 2-) FORMUL 5 HOH *243(H2 O) HELIX 1 1 SER A 2003 GLU A 2018 1 16 HELIX 2 2 ASP A 2020 HIS A 2036 1 17 HELIX 3 3 PRO A 2037 PHE A 2043 5 7 HELIX 4 4 THR A 2051 SER A 2058 1 8 HELIX 5 5 SER A 2058 LYS A 2078 1 21 HELIX 6 6 HIS A 2082 LYS A 2096 1 15 HELIX 7 7 PRO A 2100 HIS A 2119 1 20 HELIX 8 8 GLY A 2124 GLY A 2150 1 27 LINK NE2 HIS A2093 FE HEM A2154 1555 1555 2.09 LINK FE HEM A2154 O HOH A4001 1555 1555 2.08 SITE 1 AC1 18 LYS A2042 PHE A2043 ARG A2045 HIS A2064 SITE 2 AC1 18 VAL A2068 LEU A2089 SER A2092 HIS A2093 SITE 3 AC1 18 HIS A2097 ILE A2099 TYR A2103 HOH A4001 SITE 4 AC1 18 HOH A4067 HOH A4089 HOH A4206 HOH A4208 SITE 5 AC1 18 HOH A4209 HOH A4210 SITE 1 AC2 6 GLY A2124 ALA A2125 ASP A2126 HOH A4211 SITE 2 AC2 6 HOH A4213 HOH A4214 SITE 1 AC3 8 SER A2003 GLU A2004 LYS A2034 THR A2051 SITE 2 AC3 8 GLU A2052 ALA A2053 HOH A4016 HOH A4250 CRYST1 90.439 90.439 45.247 90.00 90.00 120.00 P 6 6 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 0.011057 0.006384 0.000000 0.00000 SCALE2 0.000000 0.012768 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022101 0.00000