HEADER ELECTRON TRANSPORT 14-NOV-94 1FXR TITLE CRYSTAL STRUCTURE OF THE FERREDOXIN I FROM DESULFOVIBRIO AFRICANUS AT TITLE 2 2.3 ANGSTROMS RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: FERREDOXIN I; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: DESULFOVIBRIO AFRICANUS; SOURCE 3 ORGANISM_TAXID: 873 KEYWDS ELECTRON TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR M.FREY,M.ROTH REVDAT 4 07-FEB-24 1FXR 1 REMARK REVDAT 3 24-MAR-09 1FXR 1 ATOM CONECT REVDAT 2 24-FEB-09 1FXR 1 VERSN REVDAT 1 26-JAN-95 1FXR 0 JRNL AUTH A.SERY,D.HOUSSET,L.SERRE,J.BONICEL,C.HATCHIKIAN,M.FREY, JRNL AUTH 2 M.ROTH JRNL TITL CRYSTAL STRUCTURE OF THE FERREDOXIN I FROM DESULFOVIBRIO JRNL TITL 2 AFRICANUS AT 2.3 A RESOLUTION. JRNL REF BIOCHEMISTRY V. 33 15408 1994 JRNL REFN ISSN 0006-2960 JRNL PMID 7803404 JRNL DOI 10.1021/BI00255A022 REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 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 : 4815 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) : 0.182 REMARK 3 FREE R VALUE : 0.227 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 : 1000 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 21 REMARK 3 SOLVENT ATOMS : 70 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) : 0.22 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) : 0.013 REMARK 3 BOND ANGLES (DEGREES) : 2.930 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: NULL REMARK 4 REMARK 4 1FXR 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_1000173460. 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: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.93 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.01 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -X+1/2,Y+1/2,-Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 48.30000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 29.05000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 48.30000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 29.05000 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: 1630 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 7000 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -60.0 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 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 GLU A 64 OXT REMARK 480 GLU B 64 OXT REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 HIS A 60 NE2 HIS A 60 CD2 -0.076 REMARK 500 HIS B 60 NE2 HIS B 60 CD2 -0.073 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 TRP A 61 CD1 - CG - CD2 ANGL. DEV. = 6.3 DEGREES REMARK 500 TRP A 61 CB - CG - CD1 ANGL. DEV. = -8.3 DEGREES REMARK 500 TRP A 61 CE2 - CD2 - CG ANGL. DEV. = -5.8 DEGREES REMARK 500 TRP A 61 CG - CD2 - CE3 ANGL. DEV. = 6.1 DEGREES REMARK 500 ARG B 2 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 TRP B 61 CD1 - CG - CD2 ANGL. DEV. = 7.7 DEGREES REMARK 500 TRP B 61 CG - CD1 - NE1 ANGL. DEV. = -6.1 DEGREES REMARK 500 TRP B 61 CE2 - CD2 - CG ANGL. DEV. = -6.5 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 ALA A 13 24.02 45.22 REMARK 500 ALA B 13 23.28 44.72 REMARK 500 ASP B 38 111.74 -165.92 REMARK 500 ASP B 63 -5.24 114.52 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 SF4 A 65 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 11 SG REMARK 620 2 SF4 A 65 S2 119.6 REMARK 620 3 SF4 A 65 S3 112.8 106.8 REMARK 620 4 SF4 A 65 S4 109.0 100.4 107.0 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 65 FE3 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 14 SG REMARK 620 2 SF4 A 65 S1 104.4 REMARK 620 3 SF4 A 65 S2 118.4 109.2 REMARK 620 4 SF4 A 65 S4 117.2 104.9 102.0 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 65 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 17 SG REMARK 620 2 SF4 A 65 S1 110.8 REMARK 620 3 SF4 A 65 S3 121.0 104.3 REMARK 620 4 SF4 A 65 S4 110.6 103.0 105.5 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 65 FE4 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 54 SG REMARK 620 2 SF4 A 65 S1 109.1 REMARK 620 3 SF4 A 65 S2 108.0 107.9 REMARK 620 4 SF4 A 65 S3 122.7 103.0 105.3 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 B 66 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 11 SG REMARK 620 2 SF4 B 66 S2 117.2 REMARK 620 3 SF4 B 66 S3 117.8 105.1 REMARK 620 4 SF4 B 66 S4 107.1 101.3 106.6 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 B 66 FE3 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 14 SG REMARK 620 2 SF4 B 66 S1 99.9 REMARK 620 3 SF4 B 66 S2 116.4 110.1 REMARK 620 4 SF4 B 66 S4 124.3 103.6 101.5 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 B 66 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 17 SG REMARK 620 2 SF4 B 66 S1 107.2 REMARK 620 3 SF4 B 66 S3 121.5 106.2 REMARK 620 4 SF4 B 66 S4 111.6 102.5 106.1 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 B 66 FE4 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 54 SG REMARK 620 2 SF4 B 66 S1 112.4 REMARK 620 3 SF4 B 66 S2 112.0 107.9 REMARK 620 4 SF4 B 66 S3 116.0 104.2 103.6 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 65 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SF4 A 65 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SF4 B 66 DBREF 1FXR A 1 64 UNP P00210 FER1_DESAF 1 64 DBREF 1FXR B 1 64 UNP P00210 FER1_DESAF 1 64 SEQRES 1 A 64 ALA ARG LYS PHE TYR VAL ASP GLN ASP GLU CYS ILE ALA SEQRES 2 A 64 CYS GLU SER CYS VAL GLU ILE ALA PRO GLY ALA PHE ALA SEQRES 3 A 64 MET ASP PRO GLU ILE GLU LYS ALA TYR VAL LYS ASP VAL SEQRES 4 A 64 GLU GLY ALA SER GLN GLU GLU VAL GLU GLU ALA MET ASP SEQRES 5 A 64 THR CYS PRO VAL GLN CYS ILE HIS TRP GLU ASP GLU SEQRES 1 B 64 ALA ARG LYS PHE TYR VAL ASP GLN ASP GLU CYS ILE ALA SEQRES 2 B 64 CYS GLU SER CYS VAL GLU ILE ALA PRO GLY ALA PHE ALA SEQRES 3 B 64 MET ASP PRO GLU ILE GLU LYS ALA TYR VAL LYS ASP VAL SEQRES 4 B 64 GLU GLY ALA SER GLN GLU GLU VAL GLU GLU ALA MET ASP SEQRES 5 B 64 THR CYS PRO VAL GLN CYS ILE HIS TRP GLU ASP GLU HET SF4 A 65 8 HET SO4 B 65 5 HET SF4 B 66 8 HETNAM SF4 IRON/SULFUR CLUSTER HETNAM SO4 SULFATE ION FORMUL 3 SF4 2(FE4 S4) FORMUL 4 SO4 O4 S 2- FORMUL 6 HOH *70(H2 O) HELIX 1 1 GLU A 15 ALA A 21 1 7 HELIX 2 2 SER A 43 CYS A 54 1 12 HELIX 3 3 GLU B 15 ALA B 21 1 7 HELIX 4 4 SER B 43 CYS B 54 1 12 SHEET 1 A 2 LYS A 3 VAL A 6 0 SHEET 2 A 2 ILE A 59 GLU A 62 -1 N HIS A 60 O TYR A 5 SHEET 1 B 2 PHE A 25 MET A 27 0 SHEET 2 B 2 ALA A 34 VAL A 36 -1 N TYR A 35 O ALA A 26 SHEET 1 C 2 PHE B 4 VAL B 6 0 SHEET 2 C 2 ILE B 59 TRP B 61 -1 N HIS B 60 O TYR B 5 SHEET 1 D 2 PHE B 25 MET B 27 0 SHEET 2 D 2 ALA B 34 VAL B 36 -1 O TYR B 35 N ALA B 26 LINK SG CYS A 11 FE1 SF4 A 65 1555 1555 2.31 LINK SG CYS A 14 FE3 SF4 A 65 1555 1555 2.01 LINK SG CYS A 17 FE2 SF4 A 65 1555 1555 2.23 LINK SG CYS A 54 FE4 SF4 A 65 1555 1555 2.14 LINK SG CYS B 11 FE1 SF4 B 66 1555 1555 2.14 LINK SG CYS B 14 FE3 SF4 B 66 1555 1555 2.14 LINK SG CYS B 17 FE2 SF4 B 66 1555 1555 2.00 LINK SG CYS B 54 FE4 SF4 B 66 1555 1555 2.19 SITE 1 AC1 7 SER A 43 GLN A 44 ARG B 2 SER B 43 SITE 2 AC1 7 GLN B 44 HOH B 67 HOH B 77 SITE 1 AC2 8 CYS A 11 ILE A 12 CYS A 14 GLU A 15 SITE 2 AC2 8 CYS A 17 CYS A 54 VAL A 56 CYS A 58 SITE 1 AC3 9 VAL B 6 CYS B 11 ILE B 12 CYS B 14 SITE 2 AC3 9 GLU B 15 CYS B 17 CYS B 54 VAL B 56 SITE 3 AC3 9 CYS B 58 CRYST1 96.600 58.100 20.700 90.00 90.00 90.00 P 21 21 2 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 0.010352 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017212 0.000000 0.00000 SCALE3 0.000000 0.000000 0.048309 0.00000 MTRIX1 1 -0.999092 0.042575 0.001410 -21.23436 1 MTRIX2 1 0.042595 0.998872 0.020999 0.23631 1 MTRIX3 1 -0.000514 0.021040 -0.999779 20.56958 1