HEADER ELECTRON TRANSFER(IRON-SULFUR PROTEIN) 24-SEP-93 1FRR TITLE CRYSTAL STRUCTURE OF [2FE-2S] FERREDOXIN I FROM EQUISETUM ARVENSE AT TITLE 2 1.8 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: EQUISETUM ARVENSE; SOURCE 3 ORGANISM_COMMON: FIELD HORSETAIL; SOURCE 4 ORGANISM_TAXID: 3258 KEYWDS ELECTRON TRANSFER(IRON-SULFUR PROTEIN) EXPDTA X-RAY DIFFRACTION AUTHOR T.TSUKIHARA REVDAT 3 07-FEB-24 1FRR 1 REMARK LINK REVDAT 2 24-FEB-09 1FRR 1 VERSN REVDAT 1 31-JAN-94 1FRR 0 JRNL AUTH S.IKEMIZU,M.BANDO,T.SATO,Y.MORIMOTO,T.TSUKIHARA,K.FUKUYAMA JRNL TITL STRUCTURE OF [2FE-2S] FERREDOXIN I FROM EQUISETUM ARVENSE AT JRNL TITL 2 1.8 A RESOLUTION. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 50 167 1994 JRNL REFN ISSN 0907-4449 JRNL PMID 15299454 JRNL DOI 10.1107/S0907444993009588 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PROLSQ REMARK 3 AUTHORS : KONNERT,HENDRICKSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 13838 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 + TEST SET) : 0.170 REMARK 3 R VALUE (WORKING SET) : NULL REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL WITH ALL DATA. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1412 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 8 REMARK 3 SOLVENT ATOMS : 183 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) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.014 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.042 ; 0.040 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.046 ; 0.050 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : 0.012 ; 0.020 REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.150 ; 0.150 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.191 ; 0.500 REMARK 3 MULTIPLE TORSION (A) : 0.282 ; 0.500 REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : 0.220 ; 0.500 REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : 2.100 ; 3.000 REMARK 3 STAGGERED (DEGREES) : 19.000; 15.000 REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 3.610 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 4.720 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 6.610 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 8.950 ; 3.000 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1FRR 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_1000173393. 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: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.81 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 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 28.70000 REMARK 290 SMTRY3 2 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 O ALA A 1 OD1 ASP A 16 1.97 REMARK 500 REMARK 500 REMARK: NULL 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 157 O HOH B 137 1645 1.62 REMARK 500 REMARK 500 REMARK: NULL 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 GLU A 81 CD GLU A 81 OE2 -0.070 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 ASP A 16 CB - CA - C ANGL. DEV. = 14.9 DEGREES REMARK 500 ASP A 56 CB - CG - OD2 ANGL. DEV. = -8.4 DEGREES REMARK 500 ASP A 65 CB - CG - OD2 ANGL. DEV. = -7.2 DEGREES REMARK 500 ASP A 83 CB - CG - OD1 ANGL. DEV. = 5.4 DEGREES REMARK 500 LEU A 84 CB - CA - C ANGL. DEV. = -12.0 DEGREES REMARK 500 TYR B 2 CB - CG - CD2 ANGL. DEV. = -4.4 DEGREES REMARK 500 ASP B 56 CB - CG - OD1 ANGL. DEV. = 7.6 DEGREES REMARK 500 ASP B 56 CB - CG - OD2 ANGL. DEV. = -9.0 DEGREES REMARK 500 GLU B 92 CA - CB - CG ANGL. DEV. = 14.2 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 SER A 37 -73.79 -145.03 REMARK 500 GLU A 92 12.44 -62.74 REMARK 500 GLU A 93 93.78 -160.87 REMARK 500 LEU A 94 19.82 100.59 REMARK 500 SER B 37 -83.90 -144.57 REMARK 500 GLU B 92 40.17 -69.10 REMARK 500 GLU B 93 -79.75 -168.03 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 FES A 96 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 38 SG REMARK 620 2 FES A 96 S1 118.4 REMARK 620 3 FES A 96 S2 100.8 104.8 REMARK 620 4 CYS A 43 SG 106.4 110.7 115.8 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FES A 96 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 46 SG REMARK 620 2 FES A 96 S1 113.4 REMARK 620 3 FES A 96 S2 111.4 100.8 REMARK 620 4 CYS A 76 SG 109.7 114.4 106.7 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FES B 96 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 38 SG REMARK 620 2 FES B 96 S1 117.3 REMARK 620 3 FES B 96 S2 103.7 105.4 REMARK 620 4 CYS B 43 SG 105.9 110.0 114.7 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FES B 96 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 46 SG REMARK 620 2 FES B 96 S1 113.9 REMARK 620 3 FES B 96 S2 106.8 101.7 REMARK 620 4 CYS B 76 SG 112.2 115.9 104.9 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 FES A 96 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FES B 96 DBREF 1FRR A 1 95 UNP P00235 FER1_EQUAR 1 95 DBREF 1FRR B 1 95 UNP P00235 FER1_EQUAR 1 95 SEQRES 1 A 95 ALA TYR LYS THR VAL LEU LYS THR PRO SER GLY GLU PHE SEQRES 2 A 95 THR LEU ASP VAL PRO GLU GLY THR THR ILE LEU ASP ALA SEQRES 3 A 95 ALA GLU GLU ALA GLY TYR ASP LEU PRO PHE SER CYS ARG SEQRES 4 A 95 ALA GLY ALA CYS SER SER CYS LEU GLY LYS VAL VAL SER SEQRES 5 A 95 GLY SER VAL ASP GLU SER GLU GLY SER PHE LEU ASP ASP SEQRES 6 A 95 GLY GLN MET GLU GLU GLY PHE VAL LEU THR CYS ILE ALA SEQRES 7 A 95 ILE PRO GLU SER ASP LEU VAL ILE GLU THR HIS LYS GLU SEQRES 8 A 95 GLU GLU LEU PHE SEQRES 1 B 95 ALA TYR LYS THR VAL LEU LYS THR PRO SER GLY GLU PHE SEQRES 2 B 95 THR LEU ASP VAL PRO GLU GLY THR THR ILE LEU ASP ALA SEQRES 3 B 95 ALA GLU GLU ALA GLY TYR ASP LEU PRO PHE SER CYS ARG SEQRES 4 B 95 ALA GLY ALA CYS SER SER CYS LEU GLY LYS VAL VAL SER SEQRES 5 B 95 GLY SER VAL ASP GLU SER GLU GLY SER PHE LEU ASP ASP SEQRES 6 B 95 GLY GLN MET GLU GLU GLY PHE VAL LEU THR CYS ILE ALA SEQRES 7 B 95 ILE PRO GLU SER ASP LEU VAL ILE GLU THR HIS LYS GLU SEQRES 8 B 95 GLU GLU LEU PHE HET FES A 96 4 HET FES B 96 4 HETNAM FES FE2/S2 (INORGANIC) CLUSTER FORMUL 3 FES 2(FE2 S2) FORMUL 5 HOH *183(H2 O) HELIX 1 H1A ILE A 23 ALA A 30 1 8 HELIX 2 H2A ASP A 65 GLU A 70 1 6 HELIX 3 H3A GLU A 91 PHE A 95 1 5 HELIX 4 H4A ILE B 23 ALA B 30 1 8 HELIX 5 H5A ASP B 65 GLU B 70 1 6 HELIX 6 H6A GLU B 91 PHE B 95 1 5 SHEET 1 A 4 GLY A 11 VAL A 17 0 SHEET 2 A 4 TYR A 2 THR A 8 -1 O LEU A 6 N PHE A 13 SHEET 3 A 4 ASP A 83 GLU A 87 1 N ILE A 86 O VAL A 5 SHEET 4 A 4 LYS A 49 VAL A 51 -1 O LYS A 49 N GLU A 87 SHEET 1 B 4 GLY B 11 VAL B 17 0 SHEET 2 B 4 TYR B 2 THR B 8 -1 O LEU B 6 N PHE B 13 SHEET 3 B 4 ASP B 83 GLU B 87 1 N ILE B 86 O VAL B 5 SHEET 4 B 4 LYS B 49 VAL B 51 -1 O LYS B 49 N GLU B 87 LINK SG CYS A 38 FE1 FES A 96 1555 1555 2.34 LINK SG CYS A 43 FE1 FES A 96 1555 1555 2.26 LINK SG CYS A 46 FE2 FES A 96 1555 1555 2.22 LINK SG CYS A 76 FE2 FES A 96 1555 1555 2.26 LINK SG CYS B 38 FE1 FES B 96 1555 1555 2.31 LINK SG CYS B 43 FE1 FES B 96 1555 1555 2.24 LINK SG CYS B 46 FE2 FES B 96 1555 1555 2.26 LINK SG CYS B 76 FE2 FES B 96 1555 1555 2.28 SITE 1 AC1 8 SER A 37 CYS A 38 ARG A 39 GLY A 41 SITE 2 AC1 8 ALA A 42 CYS A 43 CYS A 46 CYS A 76 SITE 1 AC2 8 SER B 37 CYS B 38 ARG B 39 GLY B 41 SITE 2 AC2 8 ALA B 42 CYS B 43 CYS B 46 CYS B 76 CRYST1 30.400 57.400 47.500 90.00 78.70 90.00 P 1 21 1 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 0.032895 0.000000 -0.006573 0.00000 SCALE2 0.000000 0.017422 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021469 0.00000