HEADER ELECTRON TRANSPORT 05-MAR-01 1H98 TITLE NEW INSIGHTS INTO THERMOSTABILITY OF BACTERIAL FERREDOXINS: HIGH TITLE 2 RESOLUTION CRYSTAL STRUCTURE OF THE SEVEN-IRON FERREDOXIN FROM TITLE 3 THERMUS THERMOPHILUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: FERREDOXIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: [3FE-4S][4FE-4S] FERREDOXIN, SEVEN-IRON FERREDOXIN SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: THERMUS AQUATICUS; SOURCE 3 ORGANISM_TAXID: 271 KEYWDS ELECTRON TRANSPORT, THERMOPHILIC, IRON-SULFUR, AZOTOBACTER, HYDROGEN KEYWDS 2 BONDS, STABILITY, HIGH RESOLUTION EXPDTA X-RAY DIFFRACTION AUTHOR S.MACEDO-RIBEIRO,B.M.MARTINS,P.J.B.PEREIRA,G.BUSE,R.HUBER,T.SOULIMANE REVDAT 3 13-DEC-23 1H98 1 REMARK LINK REVDAT 2 24-FEB-09 1H98 1 VERSN REVDAT 1 27-NOV-01 1H98 0 JRNL AUTH S.MACEDO-RIBEIRO,B.M.MARTINS,P.J.B.PEREIRA,G.BUSE,R.HUBER, JRNL AUTH 2 T.SOULIMANE JRNL TITL NEW INSIGHTS INTO THE THERMOSTABILITY OF BACTERIAL JRNL TITL 2 FERREDOXINS: HIGH-RESOLUTION CRYSTAL STRUCTURE OF THE JRNL TITL 3 SEVEN-IRON FERREDOXIN FROM THERMUS THERMOPHILUS JRNL REF J.BIOL.INORG.CHEM. V. 6 663 2001 JRNL REFN ISSN 0949-8257 JRNL PMID 11681700 JRNL DOI 10.1007/S007750100243 REMARK 2 REMARK 2 RESOLUTION. 1.64 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) : 1.64 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 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) (%) : 96.3 REMARK 3 NUMBER OF REFLECTIONS : 183792 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.159 REMARK 3 FREE R VALUE : 0.189 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 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 : 595 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 15 REMARK 3 SOLVENT ATOMS : 58 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.60 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 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) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.874 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.17 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.435 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 : PARAM19X.PRO REMARK 3 PARAMETER FILE 2 : PARAM19.SOL REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : TOPH19.SOL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1H98 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 05-MAR-01. REMARK 100 THE DEPOSITION ID IS D_1290005974. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 293.0 REMARK 200 PH : 5.40 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NI FILTER REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 9579 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.640 REMARK 200 RESOLUTION RANGE LOW (A) : 13.400 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.3 REMARK 200 DATA REDUNDANCY : 19.20 REMARK 200 R MERGE (I) : 0.09200 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 5.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.64 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.73 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.8 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.23400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: 6FD1 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.27 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 2.2 M AMMONIUM SULFATE, 0.1 M SODIUM REMARK 280 ACETATE PH 5.0-5.4, 5-10% GLYCEROL, PH 5.40 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 14.85000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 31.49500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 21.06000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 31.49500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 14.85000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 21.06000 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: PQS 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 TRANSFER ELECTRONS IN A WIDE VARIETY OF METABOLIC REACTIONS 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 GLU A 78 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 18 CD OE1 OE2 REMARK 480 GLU A 62 CD OE1 OE2 REMARK 480 LYS A 73 CE NZ 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 VAL A 11 -59.83 -120.86 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 108 FE3 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 8 SG REMARK 620 2 F3S A 108 S1 110.2 REMARK 620 3 F3S A 108 S3 117.7 102.3 REMARK 620 4 F3S A 108 S4 113.1 108.8 103.9 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 F3S A 108 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 16 SG REMARK 620 2 F3S A 108 S1 110.8 REMARK 620 3 F3S A 108 S2 110.5 109.7 REMARK 620 4 F3S A 108 S3 117.7 102.6 105.0 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 107 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 20 SG REMARK 620 2 SF4 A 107 S1 111.2 REMARK 620 3 SF4 A 107 S3 113.0 105.7 REMARK 620 4 SF4 A 107 S4 117.1 104.8 104.1 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 107 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 39 SG REMARK 620 2 SF4 A 107 S2 103.8 REMARK 620 3 SF4 A 107 S3 119.4 105.0 REMARK 620 4 SF4 A 107 S4 118.3 104.6 104.1 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 107 FE4 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 42 SG REMARK 620 2 SF4 A 107 S1 98.2 REMARK 620 3 SF4 A 107 S2 124.3 104.1 REMARK 620 4 SF4 A 107 S3 117.9 106.1 103.8 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 SF4 A 107 FE3 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 45 SG REMARK 620 2 SF4 A 107 S1 110.2 REMARK 620 3 SF4 A 107 S2 110.7 106.1 REMARK 620 4 SF4 A 107 S4 120.3 104.2 104.2 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 F3S A 108 FE4 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 49 SG REMARK 620 2 F3S A 108 S2 113.7 REMARK 620 3 F3S A 108 S3 109.8 104.0 REMARK 620 4 F3S A 108 S4 116.1 108.0 104.3 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 SF4 A 107 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE F3S A 108 REMARK 999 REMARK 999 SEQUENCE REMARK 999 LEU 69 A GLY 97 ARE COVALENTLY LINKED. THE RESIDUES 70 TO 96 REMARK 999 FROM SWISSPROT ENTRY P03942 ARE NOT PRESENT IN THE SEQUENCE REMARK 999 THE PRESENT CRYSTAL STRUCTURE, TOGETHER WITH AMINOACID REMARK 999 SEQUENCING (MACEDO-RIBEIRO ET AL, JBIC IN PRESS)AND GEL REMARK 999 FILTRATION CLEARLY SHOW THAT FDTT HAS ONLY 78 AMINOACIDS REMARK 999 AND THAT THE AMINOACID AT POSITION 6 IS A GLU INSTEAD OF GLN DBREF 1H98 A 1 69 UNP P03942 FER_THETH 1 69 DBREF 1H98 A 70 78 UNP P03942 FER_THETH 97 105 SEQADV 1H98 GLU A 6 UNP P03942 GLN 6 CONFLICT SEQRES 1 A 78 PRO HIS VAL ILE CYS GLU PRO CYS ILE GLY VAL LYS ASP SEQRES 2 A 78 GLN SER CYS VAL GLU VAL CYS PRO VAL GLU CYS ILE TYR SEQRES 3 A 78 ASP GLY GLY ASP GLN PHE TYR ILE HIS PRO GLU GLU CYS SEQRES 4 A 78 ILE ASP CYS GLY ALA CYS VAL PRO ALA CYS PRO VAL ASN SEQRES 5 A 78 ALA ILE TYR PRO GLU GLU ASP VAL PRO GLU GLN TRP LYS SEQRES 6 A 78 SER TYR ILE GLU LYS ASN ARG LYS LEU ALA GLY LEU GLU HET SF4 A 107 8 HET F3S A 108 7 HETNAM SF4 IRON/SULFUR CLUSTER HETNAM F3S FE3-S4 CLUSTER FORMUL 2 SF4 FE4 S4 FORMUL 3 F3S FE3 S4 FORMUL 4 HOH *58(H2 O) HELIX 1 1 GLU A 6 ILE A 9 5 4 HELIX 2 2 GLN A 14 CYS A 20 1 7 HELIX 3 3 ALA A 44 CYS A 49 1 6 HELIX 4 4 GLU A 58 VAL A 60 5 3 HELIX 5 5 PRO A 61 TRP A 64 5 4 HELIX 6 6 LYS A 65 ALA A 75 1 11 SHEET 1 AA 2 HIS A 2 ILE A 4 0 SHEET 2 AA 2 ILE A 54 PRO A 56 -1 O TYR A 55 N VAL A 3 SHEET 1 AB 2 ILE A 25 ASP A 27 0 SHEET 2 AB 2 PHE A 32 ILE A 34 -1 O TYR A 33 N TYR A 26 LINK SG CYS A 8 FE3 F3S A 108 1555 1555 2.21 LINK SG CYS A 16 FE1 F3S A 108 1555 1555 2.20 LINK SG CYS A 20 FE2 SF4 A 107 1555 1555 2.29 LINK SG CYS A 39 FE1 SF4 A 107 1555 1555 2.27 LINK SG CYS A 42 FE4 SF4 A 107 1555 1555 2.36 LINK SG CYS A 45 FE3 SF4 A 107 1555 1555 2.21 LINK SG CYS A 49 FE4 F3S A 108 1555 1555 2.28 SITE 1 AC1 10 HIS A 2 CYS A 20 VAL A 22 CYS A 24 SITE 2 AC1 10 ILE A 34 CYS A 39 ILE A 40 CYS A 42 SITE 3 AC1 10 GLY A 43 CYS A 45 SITE 1 AC2 7 CYS A 8 ASP A 13 GLN A 14 SER A 15 SITE 2 AC2 7 CYS A 16 CYS A 49 VAL A 51 CRYST1 29.700 42.120 62.990 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 0.033670 0.000000 0.000000 0.00000 SCALE2 0.000000 0.023742 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015876 0.00000