HEADER OXYGEN STORAGE/TRANSPORT 02-SEP-05 2AWY TITLE MET-DCRH-HR COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEMERYTHRIN-LIKE DOMAIN PROTEIN DCRH; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: DESULFOVIBRIO VULGARIS; SOURCE 3 ORGANISM_TAXID: 881; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 5 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PDVHR KEYWDS HEMERYTHRIN-LIKE OXYGEN SENSOR, OXYGEN STORAGE-TRANSPORT COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR C.E.ISAZA,R.SILAGHI-DUMITRESCU,R.B.IYER,D.M.KURTZ,M.K.CHAN REVDAT 4 14-FEB-24 2AWY 1 REMARK LINK REVDAT 3 11-OCT-17 2AWY 1 REMARK REVDAT 2 24-FEB-09 2AWY 1 VERSN REVDAT 1 15-AUG-06 2AWY 0 JRNL AUTH C.E.ISAZA,R.SILAGHI-DUMITRESCU,R.B.IYER,D.M.KURTZ,M.K.CHAN JRNL TITL STRUCTURAL BASIS FOR O(2) SENSING BY THE HEMERYTHRIN-LIKE JRNL TITL 2 DOMAIN OF A BACTERIAL CHEMOTAXIS PROTEIN: SUBSTRATE TUNNEL JRNL TITL 3 AND FLUXIONAL N TERMINUS JRNL REF BIOCHEMISTRY V. 45 9023 2006 JRNL REFN ISSN 0006-2960 JRNL PMID 16866347 JRNL DOI 10.1021/BI0607812 REMARK 2 REMARK 2 RESOLUTION. 2.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 92.0 REMARK 3 NUMBER OF REFLECTIONS : 28546 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.221 REMARK 3 FREE R VALUE : 0.280 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 8.800 REMARK 3 FREE R VALUE TEST SET COUNT : 2741 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 : 2246 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 9 REMARK 3 SOLVENT ATOMS : 149 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 35.23 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.62000 REMARK 3 B22 (A**2) : 13.45900 REMARK 3 B33 (A**2) : -11.84000 REMARK 3 B12 (A**2) : 4.95000 REMARK 3 B13 (A**2) : 0.32400 REMARK 3 B23 (A**2) : 3.86400 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) : NULL REMARK 3 BOND ANGLES (DEGREES) : NULL 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 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : 48.94 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 : CNS_TOPPAR:PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : ION3_SWAP.PARAM REMARK 3 PARAMETER FILE 3 : CNS_TOPPAR:WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2AWY COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-SEP-05. REMARK 100 THE DEPOSITION ID IS D_1000034412. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 07-MAY-02; NULL; NULL REMARK 200 TEMPERATURE (KELVIN) : 100; NULL; NULL REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y; Y; Y REMARK 200 RADIATION SOURCE : SSRL; SSRL; SSRL REMARK 200 BEAMLINE : BL9-2; BL9-2; BL9-2 REMARK 200 X-RAY GENERATOR MODEL : NULL; NULL; NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M; M; M REMARK 200 WAVELENGTH OR RANGE (A) : 1.7403; 1.24; 1.7370 REMARK 200 MONOCHROMATOR : 16 POLE WIGGLER; 16 POLE REMARK 200 WIGGLER; 16 POLE WIGGLER REMARK 200 OPTICS : NULL; NULL; NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD; NULL; NULL REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4; NULL; NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO, HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK 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: MAD; MAD; MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.70 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.15 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG4000, CACL2, ISOPROPANOL, TRIS-HCL, REMARK 280 PH 8.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,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 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 GLY A 1 REMARK 465 ASP A 2 REMARK 465 ALA A 3 REMARK 465 GLY B 1 REMARK 465 ASP B 2 REMARK 465 ALA B 3 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 15 -146.91 -147.14 REMARK 500 ASN B 15 -148.80 -155.61 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 FEO A 201 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 23 NE2 REMARK 620 2 FEO A 201 O 170.3 REMARK 620 3 HIS A 59 NE2 82.2 105.6 REMARK 620 4 GLU A 63 OE2 102.3 84.7 81.1 REMARK 620 5 ASP A 123 OD2 82.1 90.9 162.3 94.2 REMARK 620 6 CL A 202 CL 84.8 89.3 91.0 168.4 95.8 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FEO A 201 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 63 OE1 REMARK 620 2 FEO A 201 O 88.1 REMARK 620 3 HIS A 78 NE2 95.0 175.6 REMARK 620 4 HIS A 82 NE2 95.6 99.9 82.9 REMARK 620 5 HIS A 118 NE2 172.1 88.4 88.1 92.1 REMARK 620 6 ASP A 123 OD1 87.6 87.7 89.4 171.8 85.2 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 205 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 87 OE2 REMARK 620 2 HOH A 244 O 85.3 REMARK 620 3 ASP B 50 OD2 110.8 163.8 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FEO B 203 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 23 NE2 REMARK 620 2 FEO B 203 O 170.9 REMARK 620 3 HIS B 59 NE2 83.1 104.3 REMARK 620 4 GLU B 63 OE2 105.4 81.5 78.9 REMARK 620 5 ASP B 123 OD2 82.9 91.0 160.9 92.4 REMARK 620 6 CL B 204 CL 85.6 88.6 94.0 165.9 97.8 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FEO B 203 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU B 63 OE1 REMARK 620 2 FEO B 203 O 89.8 REMARK 620 3 HIS B 78 NE2 92.1 178.1 REMARK 620 4 HIS B 82 NE2 91.6 101.5 78.7 REMARK 620 5 HIS B 118 NE2 171.4 97.5 80.6 91.5 REMARK 620 6 ASP B 123 OD1 87.6 91.3 88.5 167.1 87.6 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 CL A 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 204 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 205 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FEO A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FEO B 203 DBREF 2AWY A 1 136 UNP Q9REU3 Q9REU3_DESVU 1 136 DBREF 2AWY B 1 136 UNP Q9REU3 Q9REU3_DESVU 1 136 SEQRES 1 A 136 GLY ASP ALA ASP VAL LEU VAL LYS TRP SER GLU ASP LEU SEQRES 2 A 136 ALA ASN LEU PRO SER ILE ASP THR GLN HIS LYS ARG LEU SEQRES 3 A 136 VAL ASP TYR ILE ASN ASP LEU TYR ARG ALA ALA ARG ARG SEQRES 4 A 136 ARG ASP MET ASP LYS ALA ARG GLU VAL PHE ASP ALA LEU SEQRES 5 A 136 LYS ASN TYR ALA VAL GLU HIS PHE GLY TYR GLU GLU ARG SEQRES 6 A 136 LEU PHE ALA ASP TYR ALA TYR PRO GLU ALA THR ARG HIS SEQRES 7 A 136 LYS GLU ILE HIS ARG ARG PHE VAL GLU THR VAL LEU LYS SEQRES 8 A 136 TRP GLU LYS GLN LEU ALA ALA GLY ASP PRO GLU VAL VAL SEQRES 9 A 136 MET THR THR LEU ARG GLY LEU VAL ASP TRP LEU VAL ASN SEQRES 10 A 136 HIS ILE MET LYS GLU ASP LYS LYS TYR GLU ALA TYR LEU SEQRES 11 A 136 ARG GLU ARG GLY VAL SER SEQRES 1 B 136 GLY ASP ALA ASP VAL LEU VAL LYS TRP SER GLU ASP LEU SEQRES 2 B 136 ALA ASN LEU PRO SER ILE ASP THR GLN HIS LYS ARG LEU SEQRES 3 B 136 VAL ASP TYR ILE ASN ASP LEU TYR ARG ALA ALA ARG ARG SEQRES 4 B 136 ARG ASP MET ASP LYS ALA ARG GLU VAL PHE ASP ALA LEU SEQRES 5 B 136 LYS ASN TYR ALA VAL GLU HIS PHE GLY TYR GLU GLU ARG SEQRES 6 B 136 LEU PHE ALA ASP TYR ALA TYR PRO GLU ALA THR ARG HIS SEQRES 7 B 136 LYS GLU ILE HIS ARG ARG PHE VAL GLU THR VAL LEU LYS SEQRES 8 B 136 TRP GLU LYS GLN LEU ALA ALA GLY ASP PRO GLU VAL VAL SEQRES 9 B 136 MET THR THR LEU ARG GLY LEU VAL ASP TRP LEU VAL ASN SEQRES 10 B 136 HIS ILE MET LYS GLU ASP LYS LYS TYR GLU ALA TYR LEU SEQRES 11 B 136 ARG GLU ARG GLY VAL SER HET CL A 202 1 HET CA A 205 1 HET FEO A 201 3 HET CL B 204 1 HET FEO B 203 3 HETNAM CL CHLORIDE ION HETNAM CA CALCIUM ION HETNAM FEO MU-OXO-DIIRON FORMUL 3 CL 2(CL 1-) FORMUL 4 CA CA 2+ FORMUL 5 FEO 2(FE2 O) FORMUL 8 HOH *149(H2 O) HELIX 1 1 SER A 10 ALA A 14 5 5 HELIX 2 2 LEU A 16 ARG A 39 1 24 HELIX 3 3 ASP A 41 TYR A 70 1 30 HELIX 4 4 GLU A 74 LEU A 96 1 23 HELIX 5 5 ASP A 100 GLU A 122 1 23 HELIX 6 6 ASP A 123 LYS A 125 5 3 HELIX 7 7 TYR A 126 GLU A 132 1 7 HELIX 8 8 SER B 10 ALA B 14 5 5 HELIX 9 9 LEU B 16 ARG B 39 1 24 HELIX 10 10 ASP B 41 TYR B 70 1 30 HELIX 11 11 GLU B 74 ALA B 97 1 24 HELIX 12 12 ASP B 100 GLU B 122 1 23 HELIX 13 13 ASP B 123 GLU B 132 1 10 LINK NE2 HIS A 23 FE2 FEO A 201 1555 1555 2.20 LINK NE2 HIS A 59 FE2 FEO A 201 1555 1555 2.17 LINK OE1 GLU A 63 FE1 FEO A 201 1555 1555 2.16 LINK OE2 GLU A 63 FE2 FEO A 201 1555 1555 2.14 LINK NE2 HIS A 78 FE1 FEO A 201 1555 1555 2.18 LINK NE2 HIS A 82 FE1 FEO A 201 1555 1555 2.14 LINK OE2 GLU A 87 CA CA A 205 1555 1555 2.49 LINK NE2 HIS A 118 FE1 FEO A 201 1555 1555 2.21 LINK OD1 ASP A 123 FE1 FEO A 201 1555 1555 2.13 LINK OD2 ASP A 123 FE2 FEO A 201 1555 1555 2.14 LINK FE2 FEO A 201 CL CL A 202 1555 1555 2.33 LINK CA CA A 205 O HOH A 244 1555 1555 2.56 LINK CA CA A 205 OD2 ASP B 50 1555 1555 2.42 LINK NE2 HIS B 23 FE2 FEO B 203 1555 1555 2.17 LINK NE2 HIS B 59 FE2 FEO B 203 1555 1555 2.18 LINK OE1 GLU B 63 FE1 FEO B 203 1555 1555 2.14 LINK OE2 GLU B 63 FE2 FEO B 203 1555 1555 2.14 LINK NE2 HIS B 78 FE1 FEO B 203 1555 1555 2.19 LINK NE2 HIS B 82 FE1 FEO B 203 1555 1555 2.14 LINK NE2 HIS B 118 FE1 FEO B 203 1555 1555 2.17 LINK OD1 ASP B 123 FE1 FEO B 203 1555 1555 2.13 LINK OD2 ASP B 123 FE2 FEO B 203 1555 1555 2.13 LINK FE2 FEO B 203 CL CL B 204 1555 1555 2.42 SITE 1 AC1 4 HIS A 23 HIS A 59 ASP A 123 FEO A 201 SITE 1 AC2 5 HIS B 23 HIS B 59 LEU B 115 ASP B 123 SITE 2 AC2 5 FEO B 203 SITE 1 AC3 4 GLU A 87 HOH A 244 ASP B 50 LYS B 53 SITE 1 AC4 8 HIS A 23 HIS A 59 GLU A 63 HIS A 78 SITE 2 AC4 8 HIS A 82 HIS A 118 ASP A 123 CL A 202 SITE 1 AC5 8 HIS B 23 HIS B 59 GLU B 63 HIS B 78 SITE 2 AC5 8 HIS B 82 HIS B 118 ASP B 123 CL B 204 CRYST1 33.160 44.846 47.538 92.76 103.49 90.00 P 1 2 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 0.030157 0.000000 0.007243 0.00000 SCALE2 0.000000 0.022299 0.001106 0.00000 SCALE3 0.000000 0.000000 0.021659 0.00000