HEADER ELECTRON TRANSPORT 16-MAY-01 1J7A TITLE STRUCTURE OF THE ANABAENA FERREDOXIN D68K MUTANT COMPND MOL_ID: 1; COMPND 2 MOLECULE: FERREDOXIN I; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: NOSTOC SP. PCC; SOURCE 3 ORGANISM_TAXID: 103690; SOURCE 4 STRAIN: 7120; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: JM109; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PAN622 KEYWDS ELECTRON TRANSPORT, IRON-SULFUR, FERREDOXIN EXPDTA X-RAY DIFFRACTION AUTHOR J.K.HURLEY,A.M.WEBER-MAIN,M.T.STANKOVICH,M.M.BENNING,J.B.THODEN, AUTHOR 2 J.L.VANHOOKE,H.M.HOLDEN,Y.K.CHAE,B.XIA,H.CHENG,J.L.MARKLEY, AUTHOR 3 M.MARTINEZ-JULVEZ,C.GOMEZ-MORENO,J.L.SCHMEITS,G.TOLLEN REVDAT 7 07-FEB-24 1J7A 1 REMARK REVDAT 6 27-OCT-21 1J7A 1 REMARK SEQADV LINK REVDAT 5 04-OCT-17 1J7A 1 REMARK REVDAT 4 13-JUL-11 1J7A 1 VERSN REVDAT 3 24-FEB-09 1J7A 1 VERSN REVDAT 2 01-APR-03 1J7A 1 JRNL REVDAT 1 23-MAY-01 1J7A 0 SPRSDE 23-MAY-01 1J7A 1QOC JRNL AUTH J.K.HURLEY,A.M.WEBER-MAIN,M.T.STANKOVICH,M.M.BENNING, JRNL AUTH 2 J.B.THODEN,J.L.VANHOOKE,H.M.HOLDEN,Y.K.CHAE,B.XIA,H.CHENG, JRNL AUTH 3 J.L.MARKLEY,M.MARTINEZ-JULVEZ,C.GOMEZ-MORENO,J.L.SCHMEITS, JRNL AUTH 4 G.TOLLIN JRNL TITL STRUCTURE-FUNCTION RELATIONSHIPS IN ANABAENA FERREDOXIN: JRNL TITL 2 CORRELATIONS BETWEEN X-RAY CRYSTAL STRUCTURES, REDUCTION JRNL TITL 3 POTENTIALS, AND RATE CONSTANTS OF ELECTRON TRANSFER TO JRNL TITL 4 FERREDOXIN:NADP+ REDUCTASE FOR SITE-SPECIFIC FERREDOXIN JRNL TITL 5 MUTANTS. JRNL REF BIOCHEMISTRY V. 36 11100 1997 JRNL REFN ISSN 0006-2960 JRNL PMID 9287153 JRNL DOI 10.1021/BI9709001 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 10471 REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.174 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 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.1740 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) : 10471 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 751 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 4 REMARK 3 SOLVENT ATOMS : 100 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : 0.013 ; NULL ; NULL REMARK 3 BOND ANGLES (DEGREES) : 2.340 ; NULL ; NULL REMARK 3 TORSION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES (A) : NULL ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS (A) : NULL ; NULL ; NULL REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : ENGH & HUBER REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1J7A COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-MAY-01. REMARK 100 THE DEPOSITION ID IS D_1000013448. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 12-DEC-96 REMARK 200 TEMPERATURE (KELVIN) : 277 REMARK 200 PH : 5.5 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 : SUPPER MIRRORS REMARK 200 OPTICS : SUPPER MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS HI-STAR REMARK 200 INTENSITY-INTEGRATION SOFTWARE : FRAMBO REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 10479 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 86.0 REMARK 200 DATA REDUNDANCY : 2.800 REMARK 200 R MERGE (I) : 0.03500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 21.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 86.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.10 REMARK 200 R MERGE FOR SHELL (I) : 0.10700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 4.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: TNT REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.26 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.69 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, POTASSIUM SUCCINATE, REMARK 280 2-METHYL-2,4-PENTANEDIOL, PH 5.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 90.80000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 45.40000 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 45.40000 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 90.80000 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: 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 12 CD GLU A 12 OE2 0.078 REMARK 500 GLU A 17 CD GLU A 17 OE2 0.109 REMARK 500 GLU A 72 CD GLU A 72 OE2 0.075 REMARK 500 GLU A 94 CD GLU A 94 OE2 0.070 REMARK 500 GLU A 95 CD GLU A 95 OE2 0.095 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 22 CB - CG - OD1 ANGL. DEV. = 7.2 DEGREES REMARK 500 ASP A 22 CB - CG - OD2 ANGL. DEV. = -5.6 DEGREES REMARK 500 ASP A 23 CB - CG - OD1 ANGL. DEV. = 5.6 DEGREES REMARK 500 ASP A 23 CB - CG - OD2 ANGL. DEV. = -6.5 DEGREES REMARK 500 TYR A 25 CB - CG - CD2 ANGL. DEV. = -3.7 DEGREES REMARK 500 ASP A 36 CB - CG - OD2 ANGL. DEV. = -5.8 DEGREES REMARK 500 ARG A 42 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 ASP A 59 CB - CG - OD1 ANGL. DEV. = 7.3 DEGREES REMARK 500 ASP A 59 CB - CG - OD2 ANGL. DEV. = -6.0 DEGREES REMARK 500 ASP A 96 CB - CG - OD2 ANGL. DEV. = -7.5 DEGREES REMARK 500 TYR A 98 CB - CA - C ANGL. DEV. = 12.1 DEGREES REMARK 500 TYR A 98 N - CA - CB ANGL. DEV. = 11.6 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 40 -77.21 -141.27 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 100 FE1 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 41 SG REMARK 620 2 FES A 100 S1 119.7 REMARK 620 3 FES A 100 S2 101.6 104.4 REMARK 620 4 CYS A 46 SG 106.1 106.8 119.1 REMARK 620 5 HOH A 249 O 161.4 78.8 72.9 63.8 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FES A 100 FE2 REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 49 SG REMARK 620 2 FES A 100 S1 111.9 REMARK 620 3 FES A 100 S2 110.2 103.2 REMARK 620 4 CYS A 79 SG 109.0 118.0 103.8 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 100 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1J7B RELATED DB: PDB REMARK 900 STRUCTURE OF THE ANABAENA FERREDOXIN MUTANT E94K REMARK 900 RELATED ID: 1J7C RELATED DB: PDB REMARK 900 STRUCTURE OF THE ANABAENA FERREDOXIN MUTANT E95K DBREF 1J7A A 1 98 UNP P0A3C7 FER1_ANASP 1 98 SEQADV 1J7A LYS A 68 UNP P0A3C7 ASP 68 ENGINEERED MUTATION SEQRES 1 A 98 ALA THR PHE LYS VAL THR LEU ILE ASN GLU ALA GLU GLY SEQRES 2 A 98 THR LYS HIS GLU ILE GLU VAL PRO ASP ASP GLU TYR ILE SEQRES 3 A 98 LEU ASP ALA ALA GLU GLU GLN GLY TYR ASP LEU PRO PHE SEQRES 4 A 98 SER CYS ARG ALA GLY ALA CYS SER THR CYS ALA GLY LYS SEQRES 5 A 98 LEU VAL SER GLY THR VAL ASP GLN SER ASP GLN SER PHE SEQRES 6 A 98 LEU ASP LYS ASP GLN ILE GLU ALA GLY TYR VAL LEU THR SEQRES 7 A 98 CYS VAL ALA TYR PRO THR SER ASP VAL VAL ILE GLN THR SEQRES 8 A 98 HIS LYS GLU GLU ASP LEU TYR HET FES A 100 4 HETNAM FES FE2/S2 (INORGANIC) CLUSTER FORMUL 2 FES FE2 S2 FORMUL 3 HOH *100(H2 O) HELIX 1 1 TYR A 25 GLN A 33 1 9 HELIX 2 2 ASP A 67 ALA A 73 1 7 HELIX 3 3 CYS A 79 ALA A 81 5 3 HELIX 4 4 LYS A 93 LEU A 97 5 5 SHEET 1 A 5 THR A 14 PRO A 21 0 SHEET 2 A 5 THR A 2 ASN A 9 -1 N PHE A 3 O VAL A 20 SHEET 3 A 5 VAL A 87 GLN A 90 1 O VAL A 87 N THR A 6 SHEET 4 A 5 ALA A 50 SER A 55 -1 O LYS A 52 N GLN A 90 SHEET 5 A 5 TYR A 75 LEU A 77 -1 O VAL A 76 N GLY A 51 SHEET 1 B 2 VAL A 58 ASP A 59 0 SHEET 2 B 2 TYR A 82 PRO A 83 -1 N TYR A 82 O ASP A 59 LINK SG CYS A 41 FE1 FES A 100 1555 1555 2.29 LINK SG CYS A 46 FE1 FES A 100 1555 1555 2.29 LINK SG CYS A 49 FE2 FES A 100 1555 1555 2.34 LINK SG CYS A 79 FE2 FES A 100 1555 1555 2.28 LINK FE1 FES A 100 O HOH A 249 1555 1555 2.84 SITE 1 AC1 9 SER A 40 CYS A 41 ARG A 42 GLY A 44 SITE 2 AC1 9 ALA A 45 CYS A 46 CYS A 49 CYS A 79 SITE 3 AC1 9 HOH A 249 CRYST1 38.300 38.300 136.200 90.00 90.00 120.00 P 32 2 1 6 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 0.026110 0.015074 0.000000 0.00000 SCALE2 0.000000 0.030149 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007342 0.00000