HEADER OXYGEN STORAGE 08-JUL-10 2XKG TITLE C.LACTEUS MINI-HB LEU86ALA MUTANT COMPND MOL_ID: 1; COMPND 2 MOLECULE: NEURAL HEMOGLOBIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: NRHB, MINI-HEMOGLOBIN; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CEREBRATULUS LACTEUS; SOURCE 3 ORGANISM_COMMON: MILKY RIBBON-WORM; SOURCE 4 ORGANISM_TAXID: 6221; SOURCE 5 TISSUE: NERVE TISSUE; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS OXYGEN STORAGE, METAL-BINDING EXPDTA X-RAY DIFFRACTION AUTHOR A.PESCE,M.NARDINI,S.DEWILDE,L.CAPECE,M.A.MARTI,S.CONGIA,M.D.SALTER, AUTHOR 2 G.C.BLOUIN,D.A.ESTRIN,P.ASCENZI,L.MOENS,M.BOLOGNESI,J.S.OLSON REVDAT 5 20-DEC-23 2XKG 1 REMARK REVDAT 4 15-MAY-19 2XKG 1 REMARK REVDAT 3 13-JUL-11 2XKG 1 JRNL REVDAT 2 29-DEC-10 2XKG 1 JRNL REVDAT 1 08-DEC-10 2XKG 0 JRNL AUTH A.PESCE,M.NARDINI,S.DEWILDE,L.CAPECE,M.A.MARTI,S.CONGIA, JRNL AUTH 2 M.D.SALTER,G.C.BLOUIN,D.A.ESTRIN,P.ASCENZI,L.MOENS, JRNL AUTH 3 M.BOLOGNESI,J.S.OLSON JRNL TITL LIGAND MIGRATION IN THE APOLAR TUNNEL OF CEREBRATULUS JRNL TITL 2 LACTEUS MINI-HEMOGLOBIN. JRNL REF J.BIOL.CHEM. V. 286 5347 2011 JRNL REFN ISSN 0021-9258 JRNL PMID 21147768 JRNL DOI 10.1074/JBC.M110.169045 REMARK 2 REMARK 2 RESOLUTION. 1.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0072 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) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 21.25 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 3 NUMBER OF REFLECTIONS : 14252 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) : 0.155 REMARK 3 R VALUE (WORKING SET) : 0.154 REMARK 3 FREE R VALUE : 0.186 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 759 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) : 1.60 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.64 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1029 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 100.0 REMARK 3 BIN R VALUE (WORKING SET) : 0.1750 REMARK 3 BIN FREE R VALUE SET COUNT : 55 REMARK 3 BIN FREE R VALUE : 0.1970 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 811 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 65 REMARK 3 SOLVENT ATOMS : 140 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 11.25 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 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): 0.080 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.082 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.043 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.177 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.959 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.948 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 918 ; 0.011 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1258 ; 1.172 ; 2.087 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 113 ; 4.555 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 39 ;31.712 ;24.615 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 129 ;11.493 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 2 ;26.183 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 119 ; 0.085 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 709 ; 0.018 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL 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): 546 ; 1.625 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 854 ; 2.465 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 372 ; 3.601 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 402 ; 5.262 ; 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 : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 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 2XKG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 08-JUL-10. REMARK 100 THE DEPOSITION ID IS D_1290044556. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID14-1 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 : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15045 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 34.900 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 200 DATA REDUNDANCY : 3.900 REMARK 200 R MERGE (I) : 0.04000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 24.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.69 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 4.00 REMARK 200 R MERGE FOR SHELL (I) : 0.10000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 12.70 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: PDB ENTRY 1KR7 REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.50 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 60 % AMMONIUM SULFATE AND 50 MM SODIUM REMARK 280 ACETATE BUFFER, PH 6, AT 4C, 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 21.32500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 29.72150 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 21.67350 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 29.72150 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 21.32500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 21.67350 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 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 400 REMARK 400 COMPOUND REMARK 400 ENGINEERED RESIDUE IN CHAIN A, LEU 87 TO ALA 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 O HOH A 2101 O HOH A 2112 3745 2.16 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 144 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 69 NE2 REMARK 620 2 HEM A 144 NA 89.2 REMARK 620 3 HEM A 144 NB 93.5 90.5 REMARK 620 4 HEM A 144 NC 89.4 178.6 89.8 REMARK 620 5 HEM A 144 ND 86.8 89.9 179.5 89.9 REMARK 620 6 OXY A 150 O2 158.3 105.8 71.2 75.6 108.4 REMARK 620 7 OXY A 150 O1 175.5 89.5 90.8 91.9 88.8 25.8 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 144 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OXY A 150 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 152 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 153 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 154 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 155 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2VYZ RELATED DB: PDB REMARK 900 MUTANT ALA55PHE OF CEREBRATULUS LACTEUS MINI- HEMOGLOBIN REMARK 900 RELATED ID: 1V07 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THRE11VAL MUTANT OF THE NERVE TISSUE MINI- REMARK 900 HEMOGLOBIN FROM THE NEMERTEAN WORM CEREBRATULUS LACTEUS REMARK 900 RELATED ID: 2VYY RELATED DB: PDB REMARK 900 MUTANT ALA55TRP OF CEREBRATULS LACTEUS MINI- HEMOGLOBIN REMARK 900 RELATED ID: 1KR7 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE NERVE TISSUE MINI- HEMOGLOBIN FROMTHE REMARK 900 NEMERTEAN WORM CEREBRATULUS LACTEUS REMARK 900 RELATED ID: 2XKH RELATED DB: PDB REMARK 900 XE DERIVATIVE OF C.LACTEUS MINI-HB LEU86ALA MUTANT REMARK 900 RELATED ID: 2XKI RELATED DB: PDB REMARK 900 AQUO-MET STRUCTURE OF C.LACTEUS MINI-HB DBREF 2XKG A 0 109 UNP O76242 GLBN_CERLA 1 110 SEQADV 2XKG ALA A 86 UNP O76242 LEU 87 ENGINEERED MUTATION SEQRES 1 A 110 MET VAL ASN TRP ALA ALA VAL VAL ASP ASP PHE TYR GLN SEQRES 2 A 110 GLU LEU PHE LYS ALA HIS PRO GLU TYR GLN ASN LYS PHE SEQRES 3 A 110 GLY PHE LYS GLY VAL ALA LEU GLY SER LEU LYS GLY ASN SEQRES 4 A 110 ALA ALA TYR LYS THR GLN ALA GLY LYS THR VAL ASP TYR SEQRES 5 A 110 ILE ASN ALA ALA ILE GLY GLY SER ALA ASP ALA ALA GLY SEQRES 6 A 110 LEU ALA SER ARG HIS LYS GLY ARG ASN VAL GLY SER ALA SEQRES 7 A 110 GLU PHE HIS ASN ALA LYS ALA CYS ALA ALA LYS ALA CYS SEQRES 8 A 110 SER ALA HIS GLY ALA PRO ASP LEU GLY HIS ALA ILE ASP SEQRES 9 A 110 ASP ILE LEU SER HIS LEU HET HEM A 144 43 HET OXY A 150 2 HET SO4 A 152 10 HET SO4 A 153 5 HET SO4 A 154 5 HET SO4 A 155 5 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM OXY OXYGEN MOLECULE HETNAM SO4 SULFATE ION HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 OXY O2 FORMUL 4 SO4 4(O4 S 2-) FORMUL 8 HOH *140(H2 O) HELIX 1 1 ASN A 2 HIS A 18 1 17 HELIX 2 2 PRO A 19 PHE A 25 5 7 HELIX 3 3 ALA A 31 GLY A 37 5 7 HELIX 4 4 ASN A 38 GLY A 57 1 20 HELIX 5 5 ASP A 61 GLY A 71 1 11 HELIX 6 6 GLY A 75 HIS A 93 1 19 HELIX 7 7 LEU A 98 SER A 107 1 10 LINK NE2 HIS A 69 FE HEM A 144 1555 1555 2.06 LINK FE HEM A 144 O2 OXY A 150 1555 1555 2.65 LINK FE HEM A 144 O1 OXY A 150 1555 1555 1.97 SITE 1 AC1 18 TYR A 21 LYS A 24 PHE A 25 GLN A 44 SITE 2 AC1 18 LYS A 47 LEU A 65 ARG A 68 HIS A 69 SITE 3 AC1 18 ARG A 72 VAL A 74 PHE A 79 OXY A 150 SITE 4 AC1 18 SO4 A 152 HOH A2045 HOH A2129 HOH A2131 SITE 5 AC1 18 HOH A2132 HOH A2133 SITE 1 AC2 4 TYR A 11 PHE A 25 GLN A 44 HEM A 144 SITE 1 AC3 11 MET A 0 VAL A 1 TRP A 3 ALA A 31 SITE 2 AC3 11 ARG A 68 HEM A 144 HOH A2075 HOH A2134 SITE 3 AC3 11 HOH A2135 HOH A2136 HOH A2137 SITE 1 AC4 7 HIS A 18 GLU A 20 ALA A 39 HOH A2109 SITE 2 AC4 7 HOH A2118 HOH A2138 HOH A2139 SITE 1 AC5 2 HIS A 80 LYS A 83 SITE 1 AC6 4 ASN A 2 HIS A 93 HOH A2113 HOH A2140 CRYST1 42.650 43.347 59.443 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 0.023447 0.000000 0.000000 0.00000 SCALE2 0.000000 0.023070 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016823 0.00000