HEADER ELECTRON TRANSPORT 26-APR-07 2YXC TITLE THE H25M MUTANT OF TETRAHEME CYTOCHROME C3 FROM DESULFOVIBRIO VULGARIS TITLE 2 MIYAZAKI F COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME C3; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: DESULFOVIBRIO VULGARIS STR. 'MIYAZAKI F'; SOURCE 3 ORGANISM_TAXID: 883; SOURCE 4 STRAIN: MIYAZAKI F; SOURCE 5 EXPRESSION_SYSTEM: SHEWANELLA ONEIDENSIS; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 70863; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: TSP-C; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PKF19K KEYWDS ELECTRON TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR Y.HIGUCHI,H.KOMORI REVDAT 5 25-OCT-23 2YXC 1 REMARK REVDAT 4 10-NOV-21 2YXC 1 REMARK SEQADV LINK REVDAT 3 26-JAN-10 2YXC 1 JRNL REVDAT 2 24-FEB-09 2YXC 1 VERSN REVDAT 1 29-APR-08 2YXC 0 JRNL AUTH Y.TAKAYAMA,N.D.WERBECK,H.KOMORI,K.MORITA,K.OZAWA,Y.HIGUCHI, JRNL AUTH 2 H.AKUTSU JRNL TITL STRATEGIC ROLES OF AXIAL HISTIDINES IN STRUCTURE FORMATION JRNL TITL 2 AND REDOX REGULATION OF TETRAHEME CYTOCHROME C3. JRNL REF BIOCHEMISTRY V. 47 9405 2008 JRNL REFN ISSN 0006-2960 JRNL PMID 18702516 JRNL DOI 10.1021/BI8005708 REMARK 2 REMARK 2 RESOLUTION. 1.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 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) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 12.23 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 780091.660 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.7 REMARK 3 NUMBER OF REFLECTIONS : 18745 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) : 0.178 REMARK 3 FREE R VALUE : 0.195 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 6.900 REMARK 3 FREE R VALUE TEST SET COUNT : 1286 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.005 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.50 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.59 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 89.80 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2714 REMARK 3 BIN R VALUE (WORKING SET) : 0.2580 REMARK 3 BIN FREE R VALUE : 0.2630 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 7.10 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 207 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.018 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 799 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 172 REMARK 3 SOLVENT ATOMS : 208 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 14.80 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 12.10 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.74000 REMARK 3 B22 (A**2) : 1.49000 REMARK 3 B33 (A**2) : 0.25000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.15 REMARK 3 ESD FROM SIGMAA (A) : -0.0 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.17 REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.015 REMARK 3 BOND ANGLES (DEGREES) : 4.500 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.90 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.810 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) : 0.820 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.180 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.490 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.070 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.38 REMARK 3 BSOL : 48.69 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : 19X_MOD.HEME.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : H19.HEM.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2YXC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 01-MAY-07. REMARK 100 THE DEPOSITION ID IS D_1000027252. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 26-APR-05 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 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 : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 18745 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 12.230 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: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: 1J0O REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.86 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.61 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.0, VAPOR DIFFUSION, TEMPERATURE REMARK 280 277K 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 25.97100 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 17.28700 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.57800 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 17.28700 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.97100 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 33.57800 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: PISA 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 51 -122.85 -96.74 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 HEM A1001 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 22 NE2 REMARK 620 2 HEM A1001 NA 92.2 REMARK 620 3 HEM A1001 NB 89.7 90.6 REMARK 620 4 HEM A1001 NC 90.8 177.0 89.8 REMARK 620 5 HEM A1001 ND 90.9 89.6 179.4 89.9 REMARK 620 6 HIS A 34 NE2 178.0 86.9 88.5 90.2 90.9 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A1003 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 MET A 25 SD REMARK 620 2 HEM A1003 NA 94.4 REMARK 620 3 HEM A1003 NB 86.6 89.0 REMARK 620 4 HEM A1003 NC 85.1 179.3 90.5 REMARK 620 5 HEM A1003 ND 93.0 90.9 179.6 89.5 REMARK 620 6 HIS A 83 NE2 176.9 88.6 92.8 91.9 87.7 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A1002 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 35 NE2 REMARK 620 2 HEM A1002 NA 89.5 REMARK 620 3 HEM A1002 NB 92.9 89.9 REMARK 620 4 HEM A1002 NC 91.3 179.1 89.6 REMARK 620 5 HEM A1002 ND 89.8 90.8 177.2 89.7 REMARK 620 6 HIS A 52 NE2 175.6 86.3 88.3 92.9 89.0 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A1004 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 70 NE2 REMARK 620 2 HEM A1004 NA 93.6 REMARK 620 3 HEM A1004 NB 87.5 91.2 REMARK 620 4 HEM A1004 NC 90.4 175.9 89.4 REMARK 620 5 HEM A1004 ND 86.1 89.9 173.5 89.9 REMARK 620 6 HIS A 106 NE2 175.3 89.9 95.6 86.1 90.8 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 HEM A 1004 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 1002 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 1001 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 1003 DBREF 2YXC A 1 107 UNP P00132 CYC3_DESVM 24 130 SEQADV 2YXC MET A 25 UNP P00132 HIS 48 ENGINEERED MUTATION SEQRES 1 A 107 ALA PRO LYS ALA PRO ALA ASP GLY LEU LYS MET ASP LYS SEQRES 2 A 107 THR LYS GLN PRO VAL VAL PHE ASN HIS SER THR MET LYS SEQRES 3 A 107 ALA VAL LYS CYS GLY ASP CYS HIS HIS PRO VAL ASN GLY SEQRES 4 A 107 LYS GLU ASP TYR GLN LYS CYS ALA THR ALA GLY CYS HIS SEQRES 5 A 107 ASP ASN MET ASP LYS LYS ASP LYS SER ALA LYS GLY TYR SEQRES 6 A 107 TYR HIS ALA MET HIS ASP LYS GLY THR LYS PHE LYS SER SEQRES 7 A 107 CYS VAL GLY CYS HIS LEU GLU THR ALA GLY ALA ASP ALA SEQRES 8 A 107 ALA LYS LYS LYS GLU LEU THR GLY CYS LYS GLY SER LYS SEQRES 9 A 107 CYS HIS SER HET HEM A1004 43 HET HEM A1002 43 HET HEM A1001 43 HET HEM A1003 43 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 2 HEM 4(C34 H32 FE N4 O4) FORMUL 6 HOH *208(H2 O) HELIX 1 1 ASN A 21 LYS A 26 5 6 HELIX 2 2 LYS A 29 HIS A 34 1 6 HELIX 3 3 GLY A 64 ASP A 71 1 8 HELIX 4 4 SER A 78 GLY A 88 1 11 HELIX 5 5 ASP A 90 GLY A 99 1 10 SHEET 1 A 2 LEU A 9 MET A 11 0 SHEET 2 A 2 VAL A 18 PHE A 20 -1 O PHE A 20 N LEU A 9 SHEET 1 B 2 PRO A 36 VAL A 37 0 SHEET 2 B 2 LYS A 40 GLU A 41 -1 O LYS A 40 N VAL A 37 LINK SG CYS A 30 CAB HEM A1001 1555 1555 1.84 LINK SG CYS A 33 CAC HEM A1001 1555 1555 1.84 LINK SG CYS A 46 CAB HEM A1002 1555 1555 1.84 LINK SG CYS A 51 CAC HEM A1002 1555 1555 1.84 LINK SG CYS A 79 CAB HEM A1003 1555 1555 1.84 LINK SG CYS A 82 CAC HEM A1003 1555 1555 1.83 LINK SG CYS A 100 CAB HEM A1004 1555 1555 1.83 LINK SG CYS A 105 CAC HEM A1004 1555 1555 1.84 LINK NE2 HIS A 22 FE HEM A1001 1555 1555 1.99 LINK SD MET A 25 FE HEM A1003 1555 1555 2.34 LINK NE2 HIS A 34 FE HEM A1001 1555 1555 1.97 LINK NE2 HIS A 35 FE HEM A1002 1555 1555 1.97 LINK NE2 HIS A 52 FE HEM A1002 1555 1555 1.97 LINK NE2 HIS A 70 FE HEM A1004 1555 1555 1.98 LINK NE2 HIS A 83 FE HEM A1003 1555 1555 2.00 LINK NE2 HIS A 106 FE HEM A1004 1555 1555 1.99 SITE 1 AC1 21 MET A 11 ASP A 12 LYS A 13 THR A 14 SITE 2 AC1 21 GLN A 16 PRO A 17 GLY A 39 TYR A 65 SITE 3 AC1 21 TYR A 66 HIS A 70 HIS A 83 LEU A 97 SITE 4 AC1 21 THR A 98 GLY A 99 CYS A 100 CYS A 105 SITE 5 AC1 21 HIS A 106 HOH A1040 HOH A1047 HOH A1077 SITE 6 AC1 21 HOH A1099 SITE 1 AC2 17 HIS A 35 ASP A 42 GLN A 44 LYS A 45 SITE 2 AC2 17 CYS A 46 CYS A 51 HIS A 52 HIS A 67 SITE 3 AC2 17 ALA A 68 THR A 74 LYS A 75 PHE A 76 SITE 4 AC2 17 HOH A1023 HOH A1029 HOH A1036 HOH A1079 SITE 5 AC2 17 HOH A1085 SITE 1 AC3 17 PRO A 2 LYS A 3 ALA A 4 PRO A 5 SITE 2 AC3 17 MET A 11 PHE A 20 HIS A 22 CYS A 30 SITE 3 AC3 17 CYS A 33 HIS A 34 LYS A 45 CYS A 46 SITE 4 AC3 17 HOH A1012 HOH A1041 HOH A1086 HOH A1132 SITE 5 AC3 17 HOH A1146 SITE 1 AC4 14 ASN A 21 THR A 24 MET A 25 LYS A 77 SITE 2 AC4 14 CYS A 79 CYS A 82 HIS A 83 LYS A 93 SITE 3 AC4 14 LYS A 104 HOH A1016 HOH A1044 HOH A1076 SITE 4 AC4 14 HOH A1083 HOH A1170 CRYST1 51.942 67.156 34.574 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 0.019252 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014891 0.000000 0.00000 SCALE3 0.000000 0.000000 0.028923 0.00000