HEADER ELECTRON TRANSPORT 21-DEC-00 1HH5 TITLE CYTOCHROME C7 FROM DESULFUROMONAS ACETOXIDANS COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME C7; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CYTOCHROME C3 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: DESULFUROMONAS ACETOXIDANS; SOURCE 3 ORGANISM_TAXID: 891; SOURCE 4 CELLULAR_LOCATION: PERIPLASMIC KEYWDS MULTIHEME CYTOCHROME, ELECTRON TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR M.CZJZEK,R.HASER,P.ARNOUX,W.SHEPARD REVDAT 2 24-FEB-09 1HH5 1 VERSN REVDAT 1 03-MAY-01 1HH5 0 JRNL AUTH M.CZJZEK,P.ARNOUX,R.HASER,W.SHEPARD JRNL TITL STRUCTURE OF CYTOCHROME C7 FROM DESULFUROMONAS JRNL TITL 2 ACETOXIDANS AT 1.9A RESOLUTIO N JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 57 670 2001 JRNL REFN ISSN 0907-4449 JRNL PMID 11320307 JRNL DOI 10.1107/S0907444901003481 REMARK 2 REMARK 2 RESOLUTION. 1.9 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.5 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 14.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.01 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 92.7 REMARK 3 NUMBER OF REFLECTIONS : 5213 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) : 0.194 REMARK 3 FREE R VALUE : 0.242 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.0 REMARK 3 FREE R VALUE TEST SET COUNT : 542 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 : 10 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.97 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 72.5 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 435 REMARK 3 BIN R VALUE (WORKING SET) : 0.212 REMARK 3 BIN FREE R VALUE : 0.240 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 39 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 : 525 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 129 REMARK 3 SOLVENT ATOMS : 116 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 24.12 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) : 0.21 REMARK 3 ESD FROM SIGMAA (A) : 0.11 REMARK 3 LOW RESOLUTION CUTOFF (A) : 6.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.26 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.17 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.008 REMARK 3 BOND ANGLES (DEGREES) : 4.12 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 26.3 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.69 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 : .30017 REMARK 3 BSOL : 37.0162 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 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 2 : PARAM19X.HEME REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : TOP19X.HEME REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THREE RESIDUES HAVE MULTIPLE REMARK 3 CONFORMERS REMARK 4 REMARK 4 1HH5 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 22-DEC-00. REMARK 100 THE PDBE ID CODE IS EBI-5719. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-OCT-97 REMARK 200 TEMPERATURE (KELVIN) : 287.0 REMARK 200 PH : 7.60 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) : 1.5418 REMARK 200 MONOCHROMATOR : NI-FILTER REMARK 200 OPTICS : MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGEING PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 5213 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 14.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.010 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.7 REMARK 200 DATA REDUNDANCY : 3.200 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05700 REMARK 200 FOR THE DATA SET : 5.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 81.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.20 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.14400 REMARK 200 FOR SHELL : 2.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER REMARK 200 SOFTWARE USED: SHARP, AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1NEW REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 39.4 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.03 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20-22% PEG 1000, REMARK 280 0.1 M TRIS PH 7.6 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 18.59500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 22.40000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 21.91500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 22.40000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 18.59500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 21.91500 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 GENERATING THE BIOMOLECULE 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 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 CATALYSES PHOSPHORYLATION IN SULFATE RESPIRATION BY REMARK 400 TRANSFERRING ELECTRONS FROM THE ENZYME DEHYDROGENASE REMARK 400 TO FERREDOXIN. 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 HOH A 2036 - O HOH A 2068 0.78 REMARK 500 O HOH A 2039 - O HOH A 2072 2.04 REMARK 500 O HOH A 2083 - O HOH A 2093 1.67 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 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 ASP A 27 1.70 -69.29 REMARK 500 LYS A 46 -129.80 -125.18 REMARK 500 CYS A 49 -67.74 -138.14 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): 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 HEC A 69 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HEC A 69 NA REMARK 620 2 HIS A 30 NE2 89.3 REMARK 620 3 HEC A 69 ND 88.8 86.7 REMARK 620 4 HIS A 17 NE2 91.8 176.4 90.0 REMARK 620 5 HEC A 69 NB 90.3 93.7 179.0 89.6 REMARK 620 6 HEC A 69 NC 177.2 87.9 91.4 90.9 89.5 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEC A 70 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 20 NE2 REMARK 620 2 HEC A 70 NC 92.1 REMARK 620 3 HIS A 53 NE2 176.5 86.0 REMARK 620 4 HEC A 70 NA 90.5 177.3 91.5 REMARK 620 5 HEC A 70 NB 89.2 90.7 87.9 88.3 REMARK 620 6 HEC A 70 ND 90.5 90.0 92.4 91.0 179.2 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEC A 71 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HEC A 71 NA REMARK 620 2 HIS A 45 NE2 90.8 REMARK 620 3 HIS A 66 NE2 91.0 175.7 REMARK 620 4 HEC A 71 NB 90.6 88.5 87.7 REMARK 620 5 HEC A 71 NC 178.6 90.5 87.6 89.0 REMARK 620 6 HEC A 71 ND 91.2 93.8 89.9 177.1 89.2 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEC A 69 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEC A 70 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEC A 71 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1EHJ RELATED DB: PDB REMARK 900 A PROTON-NMR INVESTIGATION OF THE FULLY REDUCED REMARK 900 CYTOCHROME C7 FROM DESULFUROMONAS ACETOXIDANS REMARK 900 RELATED ID: 1F22 RELATED DB: PDB REMARK 900 A PROTON-NMR INVESTIGATION OF THE FULLY REDUCED REMARK 900 CYTOCHROME C7 FROM DESULFUROMONAS ACETOXIDANS. REMARK 900 COMPARISON BETWEEN THE REDUCED AND THE OXIDIZED FORMS. REMARK 900 RELATED ID: 1NEW RELATED DB: PDB REMARK 900 CYTOCHROME C551.5, NMR, STRUCTURES 1 - 18 OF 35 REMARK 900 RELATED ID: 2NEW RELATED DB: PDB REMARK 900 CYTOCHROME C551.5, NMR, STRUCTURES 19 - 35 OF 35 DBREF 1HH5 A 1 68 UNP P00137 CYC3_DESAC 1 68 SEQRES 1 A 68 ALA ASP VAL VAL THR TYR GLU ASN LYS LYS GLY ASN VAL SEQRES 2 A 68 THR PHE ASP HIS LYS ALA HIS ALA GLU LYS LEU GLY CYS SEQRES 3 A 68 ASP ALA CYS HIS GLU GLY THR PRO ALA LYS ILE ALA ILE SEQRES 4 A 68 ASP LYS LYS SER ALA HIS LYS ASP ALA CYS LYS THR CYS SEQRES 5 A 68 HIS LYS SER ASN ASN GLY PRO THR LYS CYS GLY GLY CYS SEQRES 6 A 68 HIS ILE LYS HET HEC A 69 43 HET HEC A 70 43 HET HEC A 71 43 HETNAM HEC HEME C FORMUL 2 HEC 3(C34 H34 FE N4 O4) FORMUL 5 HOH *116(H2 O1) HELIX 1 1 HIS A 17 GLY A 25 1 9 HELIX 2 2 CYS A 26 CYS A 29 5 4 HELIX 3 3 ASP A 40 HIS A 45 1 6 HELIX 4 4 CYS A 49 LYS A 54 1 6 HELIX 5 5 LYS A 61 HIS A 66 1 6 SHEET 1 AA 2 VAL A 3 TYR A 6 0 SHEET 2 AA 2 VAL A 13 ASP A 16 -1 O VAL A 13 N TYR A 6 LINK NE2 HIS A 17 FE HEC A 69 1555 1555 2.00 LINK NE2 HIS A 20 FE HEC A 70 1555 1555 1.98 LINK SG CYS A 26 CAB HEC A 69 1555 1555 1.83 LINK SG CYS A 29 CAC HEC A 69 1555 1555 1.83 LINK NE2 HIS A 30 FE HEC A 69 1555 1555 1.99 LINK NE2 HIS A 45 FE HEC A 71 1555 1555 1.98 LINK SG CYS A 49 CAB HEC A 70 1555 1555 1.83 LINK SG CYS A 52 CAC HEC A 70 1555 1555 1.84 LINK NE2 HIS A 53 FE HEC A 70 1555 1555 1.98 LINK SG CYS A 62 CAB HEC A 71 1555 1555 1.83 LINK SG CYS A 65 CAC HEC A 71 1555 1555 1.83 LINK NE2 HIS A 66 FE HEC A 71 1555 1555 1.98 SITE 1 AC1 19 ALA A 1 TYR A 6 PHE A 15 HIS A 17 SITE 2 AC1 19 HIS A 20 ALA A 21 GLY A 25 CYS A 26 SITE 3 AC1 19 CYS A 29 HIS A 30 PRO A 34 ALA A 35 SITE 4 AC1 19 LYS A 36 ILE A 37 HEC A 70 HOH A2104 SITE 5 AC1 19 HOH A2105 HOH A2106 HOH A2107 SITE 1 AC2 19 VAL A 13 PHE A 15 HIS A 20 LYS A 23 SITE 2 AC2 19 LEU A 24 ALA A 48 CYS A 49 CYS A 52 SITE 3 AC2 19 HIS A 53 ASN A 56 ASN A 57 PRO A 59 SITE 4 AC2 19 HEC A 69 HOH A2014 HOH A2040 HOH A2108 SITE 5 AC2 19 HOH A2109 HOH A2110 HOH A2111 SITE 1 AC3 12 TYR A 6 LYS A 9 ALA A 44 HIS A 45 SITE 2 AC3 12 HIS A 53 THR A 60 CYS A 62 CYS A 65 SITE 3 AC3 12 HIS A 66 HOH A2009 HOH A2113 HOH A2116 CRYST1 37.190 43.830 44.800 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 0.026889 0.000000 0.000000 0.00000 SCALE2 0.000000 0.022815 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022321 0.00000 MASTER 324 0 3 5 2 0 13 6 0 0 0 6 END