PDB Short entry for 1AAY HEADER TRANSCRIPTION/DNA 18-JAN-97 1AAY TITLE ZIF268 ZINC FINGER-DNA COMPLEX COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA (5'-D(*AP*GP*CP*GP*TP*GP*GP*GP*CP*GP*T)-3'); COMPND 3 CHAIN: B; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: DNA (5'-D(*TP*AP*CP*GP*CP*CP*CP*AP*CP*GP*C)-3'); COMPND 7 CHAIN: C; COMPND 8 ENGINEERED: YES; COMPND 9 MOL_ID: 3; COMPND 10 MOLECULE: PROTEIN (ZIF268 ZINC FINGER PEPTIDE); COMPND 11 CHAIN: A; COMPND 12 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 MOL_ID: 2; SOURCE 4 SYNTHETIC: YES; SOURCE 5 MOL_ID: 3; SOURCE 6 ORGANISM_SCIENTIFIC: MUS MUSCULUS; SOURCE 7 ORGANISM_COMMON: HOUSE MOUSE; SOURCE 8 ORGANISM_TAXID: 10090; SOURCE 9 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 10 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 11 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3); SOURCE 12 EXPRESSION_SYSTEM_PLASMID: PZIF89 KEYWDS ZINC FINGER, DNA-BINDING PROTEIN, COMPLEX (ZINC FINGER-DNA), KEYWDS 2 TRANSCRIPTION-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR M.ELROD-ERICKSON,M.A.ROULD,C.O.PABO REVDAT 3 02-AUG-23 1AAY 1 REMARK LINK REVDAT 2 24-FEB-09 1AAY 1 VERSN REVDAT 1 21-APR-97 1AAY 0 JRNL AUTH M.ELROD-ERICKSON,M.A.ROULD,L.NEKLUDOVA,C.O.PABO JRNL TITL ZIF268 PROTEIN-DNA COMPLEX REFINED AT 1.6 A: A MODEL SYSTEM JRNL TITL 2 FOR UNDERSTANDING ZINC FINGER-DNA INTERACTIONS. JRNL REF STRUCTURE V. 4 1171 1996 JRNL REFN ISSN 0969-2126 JRNL PMID 8939742 JRNL DOI 10.1016/S0969-2126(96)00125-6 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH N.P.PAVLETICH,C.O.PABO REMARK 1 TITL ZINC FINGER-DNA RECOGNITION: CRYSTAL STRUCTURE OF A REMARK 1 TITL 2 ZIF268-DNA COMPLEX AT 2.1 A REMARK 1 REF SCIENCE V. 252 809 1991 REMARK 1 REFN ISSN 0036-8075 REMARK 2 REMARK 2 RESOLUTION. 1.60 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) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 100000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0100 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 87.0 REMARK 3 NUMBER OF REFLECTIONS : 19207 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.195 REMARK 3 FREE R VALUE : 0.242 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 12.000 REMARK 3 FREE R VALUE TEST SET COUNT : 2312 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 : 8 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.60 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.67 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 70.10 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1674 REMARK 3 BIN R VALUE (WORKING SET) : 0.2660 REMARK 3 BIN FREE R VALUE : 0.2860 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 12.60 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 242 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 : 712 REMARK 3 NUCLEIC ACID ATOMS : 445 REMARK 3 HETEROGEN ATOMS : 3 REMARK 3 SOLVENT ATOMS : 148 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 30.00 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) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.290 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.80 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.230 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED INDIVIDUAL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.460 ; 1.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.380 ; 1.500 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.030 ; 1.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.300 ; 1.500 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 1AAY COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY NDB. REMARK 100 THE DEPOSITION ID IS D_1000170604. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-AUG-94 REMARK 200 TEMPERATURE (KELVIN) : 295.00 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : 3 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) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : YALE MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 22749 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.6 REMARK 200 DATA REDUNDANCY : 6.500 REMARK 200 R MERGE (I) : 0.06200 REMARK 200 R SYM (I) : 0.02500 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 34.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.66 REMARK 200 COMPLETENESS FOR SHELL (%) : 92.8 REMARK 200 DATA REDUNDANCY IN SHELL : 4.00 REMARK 200 R MERGE FOR SHELL (I) : 0.53400 REMARK 200 R SYM FOR SHELL (I) : 0.22300 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: PDB ENTRY 1ZAA, WITHOUT WATERS REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.30 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.40 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 2.5-5% PEG 400; 500-700MM NACL; 25MM REMARK 280 BIS-TRIS PROPANE, PH 8.0, VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 65.40000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 65.40000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 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 22.70000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 28.10000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 22.70000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 28.10000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 65.40000 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 22.70000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 28.10000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 65.40000 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 22.70000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 28.10000 REMARK 290 SMTRY3 8 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: TRIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, C, 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 302 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 347 LIES ON A SPECIAL POSITION. 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 MET A 101 REMARK 465 GLU A 102 REMARK 465 GLN A 188 REMARK 465 LYS A 189 REMARK 465 ASP A 190 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 DT B 5 C5 DT B 5 C7 0.040 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 DC B 3 O4' - C1' - N1 ANGL. DEV. = 3.3 DEGREES REMARK 500 DT B 5 O4' - C1' - C2' ANGL. DEV. = -4.9 DEGREES REMARK 500 DT B 5 O4' - C1' - N1 ANGL. DEV. = 2.8 DEGREES REMARK 500 DC B 9 O4' - C1' - N1 ANGL. DEV. = 2.9 DEGREES REMARK 500 DT B 11 O4' - C1' - N1 ANGL. DEV. = 2.1 DEGREES REMARK 500 DA C 52 O4' - C1' - N9 ANGL. DEV. = 3.4 DEGREES REMARK 500 DG C 54 O4' - C1' - C2' ANGL. DEV. = -4.8 DEGREES REMARK 500 DC C 56 O4' - C1' - N1 ANGL. DEV. = 2.0 DEGREES REMARK 500 DC C 56 N1 - C2 - O2 ANGL. DEV. = 4.2 DEGREES REMARK 500 DC C 57 O4' - C1' - N1 ANGL. DEV. = 3.9 DEGREES REMARK 500 DA C 58 C1' - O4' - C4' ANGL. DEV. = -7.6 DEGREES REMARK 500 DC C 59 O4' - C1' - N1 ANGL. DEV. = 2.1 DEGREES 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 ZN A 201 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 107 SG REMARK 620 2 CYS A 112 SG 114.8 REMARK 620 3 HIS A 125 NE2 106.9 109.6 REMARK 620 4 HIS A 129 NE2 107.9 111.5 105.7 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 202 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 137 SG REMARK 620 2 CYS A 140 SG 115.7 REMARK 620 3 HIS A 153 NE2 108.5 110.7 REMARK 620 4 HIS A 157 NE2 111.0 114.2 94.8 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 203 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 165 SG REMARK 620 2 CYS A 168 SG 116.9 REMARK 620 3 HIS A 181 NE2 103.3 104.7 REMARK 620 4 HIS A 185 NE2 103.9 118.2 108.7 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 ZN A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 203 DBREF 1AAY A 102 190 UNP P08046 EGR1_MOUSE 308 396 DBREF 1AAY B 1 11 PDB 1AAY 1AAY 1 11 DBREF 1AAY C 51 61 PDB 1AAY 1AAY 51 61 SEQRES 1 B 11 DA DG DC DG DT DG DG DG DC DG DT SEQRES 1 C 11 DT DA DC DG DC DC DC DA DC DG DC SEQRES 1 A 90 MET GLU ARG PRO TYR ALA CYS PRO VAL GLU SER CYS ASP SEQRES 2 A 90 ARG ARG PHE SER ARG SER ASP GLU LEU THR ARG HIS ILE SEQRES 3 A 90 ARG ILE HIS THR GLY GLN LYS PRO PHE GLN CYS ARG ILE SEQRES 4 A 90 CYS MET ARG ASN PHE SER ARG SER ASP HIS LEU THR THR SEQRES 5 A 90 HIS ILE ARG THR HIS THR GLY GLU LYS PRO PHE ALA CYS SEQRES 6 A 90 ASP ILE CYS GLY ARG LYS PHE ALA ARG SER ASP GLU ARG SEQRES 7 A 90 LYS ARG HIS THR LYS ILE HIS LEU ARG GLN LYS ASP HET ZN A 201 1 HET ZN A 202 1 HET ZN A 203 1 HETNAM ZN ZINC ION FORMUL 4 ZN 3(ZN 2+) FORMUL 7 HOH *148(H2 O) HELIX 1 1 SER A 119 THR A 130 1 12 HELIX 2 2 SER A 147 THR A 158 1 12 HELIX 3 3 SER A 175 HIS A 185 1 11 SHEET 1 A 2 TYR A 105 ALA A 106 0 SHEET 2 A 2 ARG A 115 PHE A 116 -1 N PHE A 116 O TYR A 105 SHEET 1 B 2 PHE A 135 GLN A 136 0 SHEET 2 B 2 ASN A 143 PHE A 144 -1 N PHE A 144 O PHE A 135 SHEET 1 C 2 PHE A 163 ALA A 164 0 SHEET 2 C 2 LYS A 171 PHE A 172 -1 N PHE A 172 O PHE A 163 LINK SG CYS A 107 ZN ZN A 201 1555 1555 2.22 LINK SG CYS A 112 ZN ZN A 201 1555 1555 2.38 LINK NE2 HIS A 125 ZN ZN A 201 1555 1555 2.08 LINK NE2 HIS A 129 ZN ZN A 201 1555 1555 1.94 LINK SG CYS A 137 ZN ZN A 202 1555 1555 2.28 LINK SG CYS A 140 ZN ZN A 202 1555 1555 2.25 LINK NE2 HIS A 153 ZN ZN A 202 1555 1555 2.06 LINK NE2 HIS A 157 ZN ZN A 202 1555 1555 2.07 LINK SG CYS A 165 ZN ZN A 203 1555 1555 2.25 LINK SG CYS A 168 ZN ZN A 203 1555 1555 2.15 LINK NE2 HIS A 181 ZN ZN A 203 1555 1555 2.04 LINK NE2 HIS A 185 ZN ZN A 203 1555 1555 2.08 SITE 1 AC1 4 CYS A 107 CYS A 112 HIS A 125 HIS A 129 SITE 1 AC2 4 CYS A 137 CYS A 140 HIS A 153 HIS A 157 SITE 1 AC3 4 CYS A 165 CYS A 168 HIS A 181 HIS A 185 CRYST1 45.400 56.200 130.800 90.00 90.00 90.00 C 2 2 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 0.022026 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017794 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007645 0.00000