PDB Short entry for 1Q05 HEADER TRANSCRIPTION 15-JUL-03 1Q05 TITLE CRYSTAL STRUCTURE OF THE CU(I) FORM OF E. COLI CUER, A TITLE 2 COPPER EFFLUX REGULATOR COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRANSCRIPTIONAL REGULATOR CUER; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: COPPER EFFLUX REGULATOR, COPPER EXPORT REGULATOR; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: CUER; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET24A KEYWDS MERR FAMILY TRANSCRIPTIONAL REGULATOR, COPPER EFFLUX KEYWDS 2 REGULATOR EXPDTA X-RAY DIFFRACTION AUTHOR A.CHANGELA,K.CHEN,Y.XUE,J.HOLSCHEN,C.E.OUTTEN, AUTHOR 2 T.V.O'HALLORAN,A.MONDRAGON REVDAT 2 24-FEB-09 1Q05 1 VERSN REVDAT 1 16-SEP-03 1Q05 0 JRNL AUTH A.CHANGELA,K.CHEN,Y.XUE,J.HOLSCHEN,C.E.OUTTEN, JRNL AUTH 2 T.V.O'HALLORAN,A.MONDRAGON JRNL TITL MOLECULAR BASIS OF METAL-ION SELECTIVITY AND JRNL TITL 2 ZEPTOMOLAR SENSITIVITY BY CUER JRNL REF SCIENCE V. 301 1383 2003 JRNL REFN ISSN 0036-8075 JRNL PMID 12958362 JRNL DOI 10.1126/SCIENCE.1085950 REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 2.20 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 : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 23.92 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1342997.830 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 92.0 REMARK 3 NUMBER OF REFLECTIONS : 15854 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) : 0.208 REMARK 3 FREE R VALUE : 0.253 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 6.700 REMARK 3 FREE R VALUE TEST SET COUNT : 1923 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 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) : 2.20 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.34 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 93.80 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 4566 REMARK 3 BIN R VALUE (WORKING SET) : 0.2590 REMARK 3 BIN FREE R VALUE : 0.2910 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 7.10 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 347 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.016 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1976 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 143 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 23.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 37.40 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.70000 REMARK 3 B22 (A**2) : 2.48000 REMARK 3 B33 (A**2) : -5.18000 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) : 0.25 REMARK 3 ESD FROM SIGMAA (A) : 0.24 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) : 0.33 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.27 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.00 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 18.30 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.69 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) : 1.440 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.250 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.500 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.770 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.38 REMARK 3 BSOL : 47.65 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 : ION.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : ION.TOP REMARK 3 TOPOLOGY FILE 3 : WATER.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1Q05 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-JUL-03. REMARK 100 THE RCSB ID CODE IS RCSB019749. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-DEC-02 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 5ID-B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.000 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD 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 : 28832 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 24.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.8 REMARK 200 DATA REDUNDANCY : 5.200 REMARK 200 R MERGE (I) : 0.06600 REMARK 200 R SYM (I) : 0.05500 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 10.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.26 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.2 REMARK 200 DATA REDUNDANCY IN SHELL : 4.70 REMARK 200 R MERGE FOR SHELL (I) : 0.31200 REMARK 200 R SYM FOR SHELL (I) : 0.25400 REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: AU(I)-CUER REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.87 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.61 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM CITRATE, SODIUM CACODYLATE, REMARK 280 PH 6.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K 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 29.58000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 40.64500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.13000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 40.64500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 29.58000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 33.13000 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 4160 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13640 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -65.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 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 ASP A 115 REMARK 465 ASP A 116 REMARK 465 SER A 117 REMARK 465 ALA A 118 REMARK 465 ASP A 119 REMARK 465 GLY A 128 REMARK 465 CYS A 129 REMARK 465 CYS A 130 REMARK 465 HIS A 131 REMARK 465 HIS A 132 REMARK 465 ARG A 133 REMARK 465 ALA A 134 REMARK 465 GLY A 135 REMARK 465 ARG B 75 REMARK 465 CYS B 129 REMARK 465 CYS B 130 REMARK 465 HIS B 131 REMARK 465 HIS B 132 REMARK 465 ARG B 133 REMARK 465 ALA B 134 REMARK 465 GLY B 135 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 ASN A 59 -169.65 -71.85 REMARK 500 ASP B 115 -157.46 -132.92 REMARK 500 SER B 127 -150.25 -113.97 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 CU1 A 302 CU REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 112 SG REMARK 620 2 CYS A 120 SG 175.3 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CU1 B 301 CU REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 112 SG REMARK 620 2 CYS B 120 SG 175.4 REMARK 620 N 1 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CU1 B 301 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CU1 A 302 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1Q06 RELATED DB: PDB REMARK 900 THE AG(I) FORM OF E. COLI CUER REMARK 900 RELATED ID: 1Q07 RELATED DB: PDB REMARK 900 THE AU(I) FORM OF E. COLI CUER DBREF 1Q05 A 1 135 UNP P0A9G4 CUER_ECOLI 1 135 DBREF 1Q05 B 1 135 UNP P0A9G4 CUER_ECOLI 1 135 SEQRES 1 A 135 MET ASN ILE SER ASP VAL ALA LYS ILE THR GLY LEU THR SEQRES 2 A 135 SER LYS ALA ILE ARG PHE TYR GLU GLU LYS GLY LEU VAL SEQRES 3 A 135 THR PRO PRO MET ARG SER GLU ASN GLY TYR ARG THR TYR SEQRES 4 A 135 THR GLN GLN HIS LEU ASN GLU LEU THR LEU LEU ARG GLN SEQRES 5 A 135 ALA ARG GLN VAL GLY PHE ASN LEU GLU GLU SER GLY GLU SEQRES 6 A 135 LEU VAL ASN LEU PHE ASN ASP PRO GLN ARG HIS SER ALA SEQRES 7 A 135 ASP VAL LYS ARG ARG THR LEU GLU LYS VAL ALA GLU ILE SEQRES 8 A 135 GLU ARG HIS ILE GLU GLU LEU GLN SER MET ARG ASP GLN SEQRES 9 A 135 LEU LEU ALA LEU ALA ASN ALA CYS PRO GLY ASP ASP SER SEQRES 10 A 135 ALA ASP CYS PRO ILE ILE GLU ASN LEU SER GLY CYS CYS SEQRES 11 A 135 HIS HIS ARG ALA GLY SEQRES 1 B 135 MET ASN ILE SER ASP VAL ALA LYS ILE THR GLY LEU THR SEQRES 2 B 135 SER LYS ALA ILE ARG PHE TYR GLU GLU LYS GLY LEU VAL SEQRES 3 B 135 THR PRO PRO MET ARG SER GLU ASN GLY TYR ARG THR TYR SEQRES 4 B 135 THR GLN GLN HIS LEU ASN GLU LEU THR LEU LEU ARG GLN SEQRES 5 B 135 ALA ARG GLN VAL GLY PHE ASN LEU GLU GLU SER GLY GLU SEQRES 6 B 135 LEU VAL ASN LEU PHE ASN ASP PRO GLN ARG HIS SER ALA SEQRES 7 B 135 ASP VAL LYS ARG ARG THR LEU GLU LYS VAL ALA GLU ILE SEQRES 8 B 135 GLU ARG HIS ILE GLU GLU LEU GLN SER MET ARG ASP GLN SEQRES 9 B 135 LEU LEU ALA LEU ALA ASN ALA CYS PRO GLY ASP ASP SER SEQRES 10 B 135 ALA ASP CYS PRO ILE ILE GLU ASN LEU SER GLY CYS CYS SEQRES 11 B 135 HIS HIS ARG ALA GLY HET CU1 B 301 1 HET CU1 A 302 1 HETNAM CU1 COPPER (I) ION FORMUL 3 CU1 2(CU 1+) FORMUL 5 HOH *143(H2 O) HELIX 1 1 ASN A 2 GLY A 11 1 10 HELIX 2 2 THR A 13 LYS A 23 1 11 HELIX 3 3 THR A 40 VAL A 56 1 17 HELIX 4 4 ASN A 59 ASP A 72 1 14 HELIX 5 5 HIS A 76 ALA A 111 1 36 HELIX 6 6 CYS A 120 SER A 127 1 8 HELIX 7 7 ASN B 2 GLY B 11 1 10 HELIX 8 8 THR B 13 LYS B 23 1 11 HELIX 9 9 THR B 40 VAL B 56 1 17 HELIX 10 10 ASN B 59 ASP B 72 1 14 HELIX 11 11 HIS B 76 CYS B 112 1 37 HELIX 12 12 CYS B 120 SER B 127 1 8 SHEET 1 A 2 MET A 30 ARG A 31 0 SHEET 2 A 2 ARG A 37 THR A 38 -1 O THR A 38 N MET A 30 SHEET 1 B 2 MET B 30 ARG B 31 0 SHEET 2 B 2 ARG B 37 THR B 38 -1 O THR B 38 N MET B 30 LINK SG CYS A 112 CU CU1 A 302 1555 1555 2.25 LINK SG CYS A 120 CU CU1 A 302 1555 1555 2.21 LINK SG CYS B 112 CU CU1 B 301 1555 1555 2.14 LINK SG CYS B 120 CU CU1 B 301 1555 1555 2.14 SITE 1 AC1 4 SER A 77 CYS B 112 CYS B 120 ILE B 122 SITE 1 AC2 5 CYS A 112 CYS A 120 PRO A 121 ILE A 122 SITE 2 AC2 5 SER B 77 CRYST1 59.160 66.260 81.290 90.00 90.00 90.00 P 21 21 21 8 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 0.016903 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015092 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012302 0.00000