HEADER ELECTRON TRANSPORT 13-JUN-00 1F5B TITLE CRYSTAL STRUCTURE OF F2H FERREDOXIN 1 MUTANT FROM AZOTOBACTER TITLE 2 VINELANDII AT 1.75 ANGSTROM RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: FERREDOXIN 1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: FDI; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: AZOTOBACTER VINELANDII; SOURCE 3 ORGANISM_TAXID: 354; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PKT230 KEYWDS BETA-SHEET, PROTEIN MONOMER, IRON SULFUR PROTEIN, FERREDOXIN, KEYWDS 2 ELECTRON TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR K.CHEN,C.A.BONAGURA,G.J.TILLEY,Y.S.JUNG,F.A.ARMSTRONG,C.D.STOUT, AUTHOR 2 B.K.BURGESS REVDAT 7 07-FEB-24 1F5B 1 REMARK REVDAT 6 03-NOV-21 1F5B 1 REMARK SEQADV LINK REVDAT 5 04-OCT-17 1F5B 1 REMARK REVDAT 4 24-FEB-09 1F5B 1 VERSN REVDAT 3 01-APR-03 1F5B 1 JRNL REVDAT 2 12-MAR-02 1F5B 1 JRNL REMARK CONECT REVDAT 1 28-JUN-00 1F5B 0 JRNL AUTH K.CHEN,C.A.BONAGURA,G.J.TILLEY,J.P.MCEVOY,Y.S.JUNG, JRNL AUTH 2 F.A.ARMSTRONG,C.D.STOUT,B.K.BURGESS JRNL TITL CRYSTAL STRUCTURES OF FERREDOXIN VARIANTS EXHIBITING LARGE JRNL TITL 2 CHANGES IN [FE-S] REDUCTION POTENTIAL. JRNL REF NAT.STRUCT.BIOL. V. 9 188 2002 JRNL REFN ISSN 1072-8368 JRNL PMID 11875515 REMARK 2 REMARK 2 RESOLUTION. 1.62 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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 AND HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.62 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 39.16 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 372801.630 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 97.2 REMARK 3 NUMBER OF REFLECTIONS : 18542 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 SET) : 0.207 REMARK 3 FREE R VALUE : 0.244 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.800 REMARK 3 FREE R VALUE TEST SET COUNT : 899 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.008 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.62 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.72 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 91.70 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2716 REMARK 3 BIN R VALUE (WORKING SET) : 0.3430 REMARK 3 BIN FREE R VALUE : 0.3640 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.80 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 136 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.031 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 840 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 15 REMARK 3 SOLVENT ATOMS : 176 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 24.30 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.55000 REMARK 3 B22 (A**2) : -0.55000 REMARK 3 B33 (A**2) : 1.10000 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.20 REMARK 3 ESD FROM SIGMAA (A) : 0.16 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.24 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.18 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.800 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 23.40 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.900 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED 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 : FLAT MODEL REMARK 3 KSOL : 0.35 REMARK 3 BSOL : 40.92 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : PARAM19X.FS REMARK 3 PARAMETER FILE 4 : SO4.PAR REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : TOPH19.FS REMARK 3 TOPOLOGY FILE 4 : SO4.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: USED MAXIMUM LIKELIHOOD (F) REMARK 4 REMARK 4 1F5B COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-JUN-00. REMARK 100 THE DEPOSITION ID IS D_1000011260. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 05-NOV-99 REMARK 200 TEMPERATURE (KELVIN) : 115 REMARK 200 PH : 7.4 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5408 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19082 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.620 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 11.83 REMARK 200 R MERGE (I) : 0.07200 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 9.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.62 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.65 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 10.00 REMARK 200 R MERGE FOR SHELL (I) : 0.64200 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: DIFFERENCE FOURIER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 58.30 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.95 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: TRIZMA BASE, AMMONIUM SULFATE, REMARK 280 POTASSIUM PHOSPHATE, PH 7.4, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 277.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+3/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+3/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 46.39000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 27.69050 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 27.69050 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 23.19500 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 27.69050 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 27.69050 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 69.58500 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 27.69050 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 27.69050 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 23.19500 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 27.69050 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 27.69050 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 69.58500 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 46.39000 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 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 THR A 5 -169.15 -109.69 REMARK 500 ASN A 30 33.79 -141.57 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 F3S A 200 FE3 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 8 SG REMARK 620 2 F3S A 200 S1 112.2 REMARK 620 3 F3S A 200 S3 117.2 103.9 REMARK 620 4 F3S A 200 S4 106.8 110.0 106.6 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 F3S A 200 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 16 SG REMARK 620 2 F3S A 200 S1 115.1 REMARK 620 3 F3S A 200 S2 106.6 111.3 REMARK 620 4 F3S A 200 S3 115.3 103.1 105.2 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 201 FE4 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 20 SG REMARK 620 2 SF4 A 201 S1 110.5 REMARK 620 3 SF4 A 201 S2 118.5 103.8 REMARK 620 4 SF4 A 201 S3 112.7 105.3 105.0 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 201 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 39 SG REMARK 620 2 SF4 A 201 S2 118.1 REMARK 620 3 SF4 A 201 S3 116.0 105.5 REMARK 620 4 SF4 A 201 S4 106.4 105.2 104.3 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 201 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 42 SG REMARK 620 2 SF4 A 201 S1 98.8 REMARK 620 3 SF4 A 201 S3 118.0 105.0 REMARK 620 4 SF4 A 201 S4 122.6 106.4 104.1 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 201 FE3 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 45 SG REMARK 620 2 SF4 A 201 S1 107.1 REMARK 620 3 SF4 A 201 S2 119.0 103.9 REMARK 620 4 SF4 A 201 S4 112.7 107.3 105.9 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 F3S A 200 FE4 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 49 SG REMARK 620 2 F3S A 200 S2 111.9 REMARK 620 3 F3S A 200 S3 110.4 105.5 REMARK 620 4 F3S A 200 S4 111.9 110.5 106.4 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 F3S A 200 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SF4 A 201 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 6FDR RELATED DB: PDB REMARK 900 X-RAY CRYSTAL STRUCTURE OF DITHIONITE REDUCED FERREDOXIN 1 WILDTYPE REMARK 900 FROM AZOTOBACTER VINELANDII AT 1.4 ANGSTROM RESOLUTION REMARK 900 RELATED ID: 7FDR RELATED DB: PDB REMARK 900 X-RAY CRYSTAL STRUCTURE OF THE OXIDIZED FORM OF FERREDOXIN 1 REMARK 900 WILDTYPE FROM AZOTOBACTER VINELANDII AT 1.4 ANGSTROM RESOLUTION REMARK 900 RELATED ID: 1D3W RELATED DB: PDB REMARK 900 X-RAY CRYSTAL STRUCTURE OF FERREDOXIN 1 D15E MUTANT FROM REMARK 900 AZOTOBACTER VINELANDII AT 1.7 ANGSTROM RESOLUTION REMARK 900 RELATED ID: 1FDD RELATED DB: PDB REMARK 900 X-RAY CRYSTAL STRUCTURE OF FERREDOXIN 1 D15N MUTANT FROM REMARK 900 AZOTOBACTER VINELANDII AT 1.9 ANGSTROM RESOLUTION REMARK 900 RELATED ID: 1F5C RELATED DB: PDB DBREF 1F5B A 1 106 UNP P00214 FER1_AZOVI 1 106 SEQADV 1F5B HIS A 2 UNP P00214 PHE 2 ENGINEERED MUTATION SEQRES 1 A 106 ALA HIS VAL VAL THR ASP ASN CYS ILE LYS CYS LYS TYR SEQRES 2 A 106 THR ASP CYS VAL GLU VAL CYS PRO VAL ASP CYS PHE TYR SEQRES 3 A 106 GLU GLY PRO ASN PHE LEU VAL ILE HIS PRO ASP GLU CYS SEQRES 4 A 106 ILE ASP CYS ALA LEU CYS GLU PRO GLU CYS PRO ALA GLN SEQRES 5 A 106 ALA ILE PHE SER GLU ASP GLU VAL PRO GLU ASP MET GLN SEQRES 6 A 106 GLU PHE ILE GLN LEU ASN ALA GLU LEU ALA GLU VAL TRP SEQRES 7 A 106 PRO ASN ILE THR GLU LYS LYS ASP PRO LEU PRO ASP ALA SEQRES 8 A 106 GLU ASP TRP ASP GLY VAL LYS GLY LYS LEU GLN HIS LEU SEQRES 9 A 106 GLU ARG HET F3S A 200 7 HET SF4 A 201 8 HETNAM F3S FE3-S4 CLUSTER HETNAM SF4 IRON/SULFUR CLUSTER FORMUL 2 F3S FE3 S4 FORMUL 3 SF4 FE4 S4 FORMUL 4 HOH *176(H2 O) HELIX 1 1 ASP A 6 ILE A 9 5 4 HELIX 2 2 THR A 14 CYS A 20 5 7 HELIX 3 3 CYS A 45 CYS A 49 5 5 HELIX 4 4 ASP A 58 VAL A 60 5 3 HELIX 5 5 PRO A 61 MET A 64 5 4 HELIX 6 6 GLN A 65 ALA A 75 1 11 HELIX 7 7 ASP A 90 ASP A 95 1 6 HELIX 8 8 GLY A 99 LEU A 104 5 6 SHEET 1 A 2 HIS A 2 VAL A 4 0 SHEET 2 A 2 ILE A 54 SER A 56 -1 O PHE A 55 N VAL A 3 SHEET 1 B 2 PHE A 25 GLU A 27 0 SHEET 2 B 2 LEU A 32 ILE A 34 -1 O VAL A 33 N TYR A 26 LINK SG CYS A 8 FE3 F3S A 200 1555 1555 2.28 LINK SG CYS A 16 FE1 F3S A 200 1555 1555 2.28 LINK SG CYS A 20 FE4 SF4 A 201 1555 1555 2.29 LINK SG CYS A 39 FE1 SF4 A 201 1555 1555 2.29 LINK SG CYS A 42 FE2 SF4 A 201 1555 1555 2.30 LINK SG CYS A 45 FE3 SF4 A 201 1555 1555 2.28 LINK SG CYS A 49 FE4 F3S A 200 1555 1555 2.28 SITE 1 AC1 8 CYS A 8 LYS A 12 TYR A 13 THR A 14 SITE 2 AC1 8 ASP A 15 CYS A 16 LEU A 32 CYS A 49 SITE 1 AC2 11 HIS A 2 CYS A 20 VAL A 22 CYS A 24 SITE 2 AC2 11 PHE A 25 ILE A 34 CYS A 39 ILE A 40 SITE 3 AC2 11 CYS A 42 ALA A 43 CYS A 45 CRYST1 55.381 55.381 92.780 90.00 90.00 90.00 P 41 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 0.018057 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018057 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010778 0.00000