HEADER ELECTRON TRANSPORT (HEME PROTEIN) 01-JUL-94 2CY3 TITLE CRYSTAL STRUCTURE OF CYTOCHROME C3 FROM DESULFOVIBRIO DESULFURICANS TITLE 2 NORWAY AT 1.7 ANGSTROMS RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME C3; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: DESULFOMICROBIUM NORVEGICUM; SOURCE 3 ORGANISM_TAXID: 52561; SOURCE 4 STRAIN: NORWAY 4 KEYWDS ELECTRON TRANSPORT (HEME PROTEIN) EXPDTA X-RAY DIFFRACTION AUTHOR M.CZJZEK,F.PAYAN,R.HASER REVDAT 4 03-MAR-21 2CY3 1 COMPND REMARK HET HETNAM REVDAT 4 2 1 HETSYN FORMUL LINK SITE REVDAT 4 3 1 ATOM REVDAT 3 29-NOV-17 2CY3 1 HELIX REVDAT 2 24-FEB-09 2CY3 1 VERSN REVDAT 1 15-OCT-94 2CY3 0 SPRSDE 15-OCT-94 2CY3 1CY3 JRNL AUTH M.CZJZEK,F.PAYAN,F.GUERLESQUIN,M.BRUSCHI,R.HASER JRNL TITL CRYSTAL STRUCTURE OF CYTOCHROME C3 FROM DESULFOVIBRIO JRNL TITL 2 DESULFURICANS NORWAY AT 1.7 A RESOLUTION. JRNL REF J.MOL.BIOL. V. 243 653 1994 JRNL REFN ISSN 0022-2836 JRNL PMID 7966289 JRNL DOI 10.1016/0022-2836(94)90039-6 REMARK 2 REMARK 2 RESOLUTION. 1.70 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) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 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) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 11751 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 SET) : 0.198 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 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 : 880 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 172 REMARK 3 SOLVENT ATOMS : 126 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 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) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.800 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2CY3 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_1000177967. 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: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 56.22 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.81 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,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 21.48333 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 42.96667 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 CYS A 66 -132.40 -113.15 REMARK 500 THR A 117 102.66 -56.71 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 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 159 DISTANCE = 6.91 ANGSTROMS REMARK 525 HOH A 170 DISTANCE = 5.89 ANGSTROMS REMARK 525 HOH A 291 DISTANCE = 6.68 ANGSTROMS REMARK 525 HOH A 348 DISTANCE = 12.52 ANGSTROMS REMARK 525 HOH A 361 DISTANCE = 6.71 ANGSTROMS REMARK 525 HOH A 368 DISTANCE = 6.51 ANGSTROMS 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 119 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 36 NE2 REMARK 620 2 HEC A 119 NA 91.8 REMARK 620 3 HEC A 119 NB 91.7 91.7 REMARK 620 4 HEC A 119 NC 85.9 177.1 89.9 REMARK 620 5 HEC A 119 ND 88.5 89.2 179.0 89.1 REMARK 620 6 HIS A 48 NE2 178.2 90.0 88.7 92.4 91.1 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEC A 121 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 39 NE2 REMARK 620 2 HEC A 121 NA 90.3 REMARK 620 3 HEC A 121 NB 92.8 88.0 REMARK 620 4 HEC A 121 NC 89.0 178.7 90.9 REMARK 620 5 HEC A 121 ND 84.9 90.4 177.2 90.7 REMARK 620 6 HIS A 96 NE2 176.5 91.0 90.5 89.7 91.9 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEC A 120 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 49 NE2 REMARK 620 2 HEC A 120 NA 90.1 REMARK 620 3 HEC A 120 NB 90.5 91.7 REMARK 620 4 HEC A 120 NC 88.7 176.9 91.1 REMARK 620 5 HEC A 120 ND 93.6 89.2 175.8 88.0 REMARK 620 6 HIS A 67 NE2 176.5 89.7 86.0 91.7 89.9 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEC A 122 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 89 NE2 REMARK 620 2 HEC A 122 NA 92.3 REMARK 620 3 HEC A 122 NB 83.9 90.5 REMARK 620 4 HEC A 122 NC 90.2 177.5 89.3 REMARK 620 5 HEC A 122 ND 97.8 90.1 178.2 90.0 REMARK 620 6 HIS A 115 NE2 173.4 89.2 89.6 88.3 88.7 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 119 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEC A 120 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEC A 121 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEC A 122 REMARK 999 REMARK 999 SEQUENCE REMARK 999 SEQUENCE ADVISORY NOTICE REMARK 999 DIFFERENCE BETWEEN SWISS-PROT AND PDB SEQUENCE. REMARK 999 REMARK 999 SWISS-PROT ENTRY NAME: CYC3_DESDN REMARK 999 REMARK 999 SWISS-PROT RESIDUE PDB SEQRES REMARK 999 REMARK 999 NAME NUMBER NAME CHAIN SEQ/INSERT CODE REMARK 999 SER 86 ASN 86 REMARK 999 ALA 97 LYS 97 REMARK 999 LEU 98 ALA 98 REMARK 999 LYS 99 LEU 99 REMARK 999 REMARK 999 THE SEQUENCE PRESENTED IN THIS ENTRY IS THE CORRECTED REMARK 999 SEQUENCE OF BRUSCHI, M. LEROY, G. GUERLESQUIN, F. AND REMARK 999 BONICEL, J. (1994) BIOCHIM. BIOPHYS. ACTA, IN THE PRESS. REMARK 999 THESE CORRECTIONS ARE DESCRIBED AND REFERENCED IN THE JRNL REMARK 999 ARTICLE. DBREF 2CY3 A 1 118 UNP P00136 CYC31_DESDN 1 118 SEQRES 1 A 118 ALA ASP ALA PRO GLY ASP ASP TYR VAL ILE SER ALA PRO SEQRES 2 A 118 GLU GLY MET LYS ALA LYS PRO LYS GLY ASP LYS PRO GLY SEQRES 3 A 118 ALA LEU GLN LYS THR VAL PRO PHE PRO HIS THR LYS HIS SEQRES 4 A 118 ALA THR VAL GLU CYS VAL GLN CYS HIS HIS THR LEU GLU SEQRES 5 A 118 ALA ASP GLY GLY ALA VAL LYS LYS CYS THR THR SER GLY SEQRES 6 A 118 CYS HIS ASP SER LEU GLU PHE ARG ASP LYS ALA ASN ALA SEQRES 7 A 118 LYS ASP ILE LYS LEU VAL GLU ASN ALA PHE HIS THR GLN SEQRES 8 A 118 CYS ILE ASP CYS HIS LYS ALA LEU LYS LYS ASP LYS LYS SEQRES 9 A 118 PRO THR GLY PRO THR ALA CYS GLY LYS CYS HIS THR THR SEQRES 10 A 118 ASN HET HEC A 119 43 HET HEC A 120 43 HET HEC A 121 43 HET HEC A 122 43 HETNAM HEC HEME C FORMUL 2 HEC 4(C34 H34 FE N4 O4) FORMUL 6 HOH *126(H2 O) HELIX 1 A CYS A 44 CYS A 47 1HEME ATTACHMENT 4 HELIX 2 B VAL A 84 LYS A 101 1 18 HELIX 3 C CYS A 111 CYS A 114 1HEME ATTACHMENT 4 SHEET 1 S1 2 VAL A 9 ILE A 10 0 SHEET 2 S1 2 VAL A 32 PRO A 33 -1 LINK SG CYS A 44 CAB HEC A 119 1555 1555 1.84 LINK SG CYS A 47 CAC HEC A 119 1555 1555 1.83 LINK SG CYS A 61 CAB HEC A 120 1555 1555 1.84 LINK SG CYS A 66 CAC HEC A 120 1555 1555 1.83 LINK SG CYS A 92 CAB HEC A 121 1555 1555 1.82 LINK SG CYS A 95 CAC HEC A 121 1555 1555 1.83 LINK SG CYS A 111 CAB HEC A 122 1555 1555 1.83 LINK SG CYS A 114 CAC HEC A 122 1555 1555 1.83 LINK NE2 HIS A 36 FE HEC A 119 1555 1555 2.04 LINK NE2 HIS A 39 FE HEC A 121 1555 1555 1.97 LINK NE2 HIS A 48 FE HEC A 119 1555 1555 2.01 LINK NE2 HIS A 49 FE HEC A 120 1555 1555 2.01 LINK NE2 HIS A 67 FE HEC A 120 1555 1555 1.97 LINK NE2 HIS A 89 FE HEC A 122 1555 1555 1.99 LINK NE2 HIS A 96 FE HEC A 121 1555 1555 2.01 LINK NE2 HIS A 115 FE HEC A 122 1555 1555 2.03 SITE 1 AC1 16 ALA A 1 ASP A 2 PRO A 4 TYR A 8 SITE 2 AC1 16 ILE A 10 PHE A 34 HIS A 36 HIS A 39 SITE 3 AC1 16 VAL A 42 CYS A 44 CYS A 47 HIS A 48 SITE 4 AC1 16 LYS A 60 CYS A 61 HEC A 121 HOH A 327 SITE 1 AC2 16 CYS A 47 HIS A 48 HIS A 49 THR A 50 SITE 2 AC2 16 CYS A 61 CYS A 66 HIS A 67 ILE A 81 SITE 3 AC2 16 ALA A 87 THR A 90 GLN A 91 LYS A 100 SITE 4 AC2 16 HOH A 317 HOH A 326 HOH A 335 HOH A 384 SITE 1 AC3 19 VAL A 32 PHE A 34 LYS A 38 HIS A 39 SITE 2 AC3 19 GLN A 46 GLN A 91 CYS A 92 CYS A 95 SITE 3 AC3 19 HIS A 96 LEU A 99 PRO A 105 THR A 106 SITE 4 AC3 19 GLY A 107 PRO A 108 HEC A 119 HOH A 284 SITE 5 AC3 19 HOH A 315 HOH A 321 HOH A 373 SITE 1 AC4 18 ILE A 10 ALA A 12 LEU A 28 GLN A 29 SITE 2 AC4 18 VAL A 45 GLU A 85 PHE A 88 HIS A 89 SITE 3 AC4 18 HIS A 96 PRO A 108 THR A 109 ALA A 110 SITE 4 AC4 18 CYS A 111 CYS A 114 HIS A 115 HOH A 136 SITE 5 AC4 18 HOH A 138 HOH A 319 CRYST1 43.720 43.720 64.450 90.00 90.00 120.00 P 31 3 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 0.022873 0.013206 0.000000 0.00000 SCALE2 0.000000 0.026411 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015516 0.00000