HEADER HYDROLASE 03-OCT-04 1XMK TITLE THE CRYSTAL STRUCTURE OF THE ZB DOMAIN FROM THE RNA EDITING ENZYME TITLE 2 ADAR1 COMPND MOL_ID: 1; COMPND 2 MOLECULE: DOUBLE-STRANDED RNA-SPECIFIC ADENOSINE DEAMINASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: DRADA, 136 KDA DOUBLE-STRANDED RNA BINDING PROTEIN, P136, COMPND 5 K88DSRBP, INTERFERON-INDUCIBLE PROTEIN 4, IFI-4 PROTEIN, ADAR1; COMPND 6 EC: 3.5.4.-; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: ADAR, ADAR1, DSRAD, IFI4; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET28 KEYWDS WINGED HELIX-TURN-HELIX, RNA EDITING, INTERFERON, ADAR1, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR A.ATHANASIADIS,D.PLACIDO,S.MAAS,B.A.BROWN II,K.LOWENHAUPT,A.RICH REVDAT 4 14-FEB-24 1XMK 1 REMARK SEQADV LINK REVDAT 3 24-JAN-18 1XMK 1 JRNL REVDAT 2 24-FEB-09 1XMK 1 VERSN REVDAT 1 02-AUG-05 1XMK 0 JRNL AUTH A.ATHANASIADIS,D.PLACIDO,S.MAAS,B.A.BROWN II,K.LOWENHAUPT, JRNL AUTH 2 A.RICH JRNL TITL THE CRYSTAL STRUCTURE OF THE Z[BETA] DOMAIN OF THE JRNL TITL 2 RNA-EDITING ENZYME ADAR1 REVEALS DISTINCT CONSERVED SURFACES JRNL TITL 3 AMONG Z-DOMAINS. JRNL REF J.MOL.BIOL. V. 351 496 2005 JRNL REFN ISSN 0022-2836 JRNL PMID 16023667 JRNL DOI 10.1016/J.JMB.2005.06.028 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH T.SCHWARTZ,J.BEHLKE,K.LOWENHAUPT,U.HEINEMANN,A.RICH REMARK 1 TITL STRUCTURE OF THE DLM-1-Z-DNA COMPLEX REVEALS A CONSERVED REMARK 1 TITL 2 FAMILY OF Z-DNA-BINDING PROTEINS REMARK 1 REF NAT.STRUCT.MOL.BIOL. V. 8 761 2001 REMARK 1 REFN ISSN 1545-9993 REMARK 1 PMID 11524677 REMARK 1 DOI 10.1038/NSB0901-761 REMARK 1 REFERENCE 2 REMARK 1 AUTH T.SCHWARTZ,M.A.ROULD,K.LOWENHAUPT,A.HERBERT,A.RICH REMARK 1 TITL CRYSTAL STRUCTURE OF THE ZALPHA DOMAIN OF THE HUMAN EDITING REMARK 1 TITL 2 ENZYME ADAR1 BOUND TO LEFT-HANDED Z-DNA REMARK 1 REF SCIENCE V. 284 1841 1999 REMARK 1 REFN ISSN 0036-8075 REMARK 1 PMID 10364558 REMARK 1 DOI 10.1126/SCIENCE.284.5421.1841 REMARK 2 REMARK 2 RESOLUTION. 0.97 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELX REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 0.97 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.8 REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT WITH THE REMARK 3 EXCEPTION OF THE LAST TWO REMARK 3 REFINEMENT CYCLES REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.145 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.145 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.183 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 4051 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 42408 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.122 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.119 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.162 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 2601 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 25889 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 627 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 5 REMARK 3 SOLVENT ATOMS : 125 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : NULL REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : NULL REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 4 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : NULL REMARK 3 NUMBER OF RESTRAINTS : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.018 REMARK 3 ANGLE DISTANCES (A) : 0.035 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.062 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.028 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.063 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.111 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.016 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.104 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: MOEWS & KRETSINGER, J.MOL.BIOL.91(1973)201-228 REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH & HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: CNS WAS USED IN EARLY REFINEMENT STAGES REMARK 4 REMARK 4 1XMK COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-OCT-04. REMARK 100 THE DEPOSITION ID IS D_1000030518. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-JAN-02 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 9.00 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X8C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9 REMARK 200 MONOCHROMATOR : MONOCHROMATOR REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 41638 REMARK 200 RESOLUTION RANGE HIGH (A) : 0.970 REMARK 200 RESOLUTION RANGE LOW (A) : 27.920 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 200 DATA REDUNDANCY : 4.100 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07500 REMARK 200 FOR THE DATA SET : 5.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 0.97 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.02 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.7 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: MIR REMARK 200 SOFTWARE USED: SHARP REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 27.50 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.70 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG1000, CADMIUM CHLORIDE, NICKEL REMARK 280 CHLORIDE, TRIS, PH 9.0, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 312K, PH 9.00 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 17.77850 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 22.73550 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 21.76300 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 22.73550 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 17.77850 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 21.76300 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 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: 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 ASP A 295 CB - CG - OD2 ANGL. DEV. = -9.7 DEGREES REMARK 500 GLU A 298 OE1 - CD - OE2 ANGL. DEV. = -8.0 DEGREES REMARK 500 SER A 311 N - CA - CB ANGL. DEV. = 9.8 DEGREES REMARK 500 ARG A 328 CG - CD - NE ANGL. DEV. = 16.9 DEGREES REMARK 500 ARG A 328 CD - NE - CZ ANGL. DEV. = 13.2 DEGREES REMARK 500 ARG A 328 NH1 - CZ - NH2 ANGL. DEV. = -8.1 DEGREES REMARK 500 ARG A 328 NE - CZ - NH1 ANGL. DEV. = 14.2 DEGREES REMARK 500 ARG A 328 NE - CZ - NH2 ANGL. DEV. = -6.1 DEGREES REMARK 500 ARG A 339 NE - CZ - NH1 ANGL. DEV. = -3.8 DEGREES REMARK 500 ARG A 339 NE - CZ - NH2 ANGL. DEV. = 4.4 DEGREES REMARK 500 ARG A 345 NE - CZ - NH2 ANGL. DEV. = -4.0 DEGREES REMARK 500 ASP A 357 CB - CG - OD2 ANGL. DEV. = 6.1 DEGREES REMARK 500 ARG A 360 NE - CZ - NH1 ANGL. DEV. = 4.8 DEGREES REMARK 500 ARG A 360 NE - CZ - NH2 ANGL. DEV. = -5.2 DEGREES REMARK 500 ARG A 362 CD - NE - CZ ANGL. DEV. = 29.3 DEGREES REMARK 500 ARG A 362 NH1 - CZ - NH2 ANGL. DEV. = 7.1 DEGREES REMARK 500 ARG A 362 NE - CZ - NH2 ANGL. DEV. = -8.6 DEGREES REMARK 500 LYS A 366 CA - C - O ANGL. DEV. = -16.0 DEGREES 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 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 SER A 289 -11.74 -160.91 REMARK 500 HIS A 290 54.97 -91.52 REMARK 500 VAL A 310 -78.63 -107.64 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 NI A 398 NI REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 288 N REMARK 620 2 SER A 289 N 82.4 REMARK 620 3 HIS A 290 N 172.2 90.1 REMARK 620 4 HIS A 290 ND1 94.4 175.5 93.1 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD A 397 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 301 OE2 REMARK 620 2 GLU A 301 OE1 52.9 REMARK 620 3 CYS A 304 SG 90.4 104.7 REMARK 620 4 ASP A 312 OD1 100.5 151.6 82.9 REMARK 620 5 HIS A 354 NE2 84.8 87.1 160.9 79.8 REMARK 620 6 CL A 400 CL 153.1 100.4 100.9 105.1 91.5 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD A 396 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 304 SG REMARK 620 2 ASP A 312 OD1 83.3 REMARK 620 3 ASP A 312 OD2 127.1 52.1 REMARK 620 4 LYS A 359 NZ 112.5 108.4 108.2 REMARK 620 5 CL A 399 CL 108.3 146.9 99.6 95.9 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD A 396 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD A 397 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI A 398 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 399 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 400 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1QBJ RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE ZALPHA Z-DNA COMPLEX REMARK 900 RELATED ID: 1QGP RELATED DB: PDB REMARK 900 NMR STRUCTURE OF THE Z-ALPHA DOMAIN OF ADAR1 REMARK 900 RELATED ID: 1OYI RELATED DB: PDB REMARK 900 SOLUTION STRUCTURE OF THE Z-DNA BINDING DOMAIN OF THE VACCINIA REMARK 900 VIRUS GENE E3L DBREF 1XMK A 294 366 UNP P55265 DSRAD_HUMAN 294 366 SEQADV 1XMK GLY A 288 UNP P55265 CLONING ARTIFACT SEQADV 1XMK SER A 289 UNP P55265 CLONING ARTIFACT SEQADV 1XMK HIS A 290 UNP P55265 CLONING ARTIFACT SEQADV 1XMK MET A 291 UNP P55265 CLONING ARTIFACT SEQADV 1XMK ALA A 292 UNP P55265 CLONING ARTIFACT SEQADV 1XMK SER A 293 UNP P55265 CLONING ARTIFACT SEQRES 1 A 79 GLY SER HIS MET ALA SER LEU ASP MET ALA GLU ILE LYS SEQRES 2 A 79 GLU LYS ILE CYS ASP TYR LEU PHE ASN VAL SER ASP SER SEQRES 3 A 79 SER ALA LEU ASN LEU ALA LYS ASN ILE GLY LEU THR LYS SEQRES 4 A 79 ALA ARG ASP ILE ASN ALA VAL LEU ILE ASP MET GLU ARG SEQRES 5 A 79 GLN GLY ASP VAL TYR ARG GLN GLY THR THR PRO PRO ILE SEQRES 6 A 79 TRP HIS LEU THR ASP LYS LYS ARG GLU ARG MET GLN ILE SEQRES 7 A 79 LYS HET CD A 396 1 HET CD A 397 1 HET NI A 398 1 HET CL A 399 1 HET CL A 400 1 HETNAM CD CADMIUM ION HETNAM NI NICKEL (II) ION HETNAM CL CHLORIDE ION FORMUL 2 CD 2(CD 2+) FORMUL 4 NI NI 2+ FORMUL 5 CL 2(CL 1-) FORMUL 7 HOH *125(H2 O) HELIX 1 1 SER A 293 VAL A 310 1 18 HELIX 2 2 ALA A 315 GLY A 323 1 9 HELIX 3 3 LYS A 326 GLN A 340 1 15 HELIX 4 4 THR A 356 GLU A 361 1 6 SHEET 1 A 3 SER A 313 SER A 314 0 SHEET 2 A 3 ILE A 352 LEU A 355 -1 O TRP A 353 N SER A 313 SHEET 3 A 3 VAL A 343 GLN A 346 -1 N TYR A 344 O HIS A 354 LINK N GLY A 288 NI NI A 398 1555 1555 1.89 LINK N SER A 289 NI NI A 398 1555 1555 1.80 LINK N HIS A 290 NI NI A 398 1555 1555 1.84 LINK ND1 HIS A 290 NI NI A 398 1555 1555 1.93 LINK OE2 GLU A 301 CD CD A 397 1555 1555 2.54 LINK OE1 GLU A 301 CD CD A 397 1555 1555 2.29 LINK SG CYS A 304 CD CD A 396 1555 1555 2.51 LINK SG CYS A 304 CD CD A 397 1555 1555 2.61 LINK OD1 ASP A 312 CD CD A 396 4557 1555 2.69 LINK OD2 ASP A 312 CD CD A 396 4557 1555 2.19 LINK OD1 ASP A 312 CD CD A 397 4557 1555 2.61 LINK NE2 HIS A 354 CD CD A 397 4557 1555 2.31 LINK NZ LYS A 359 CD CD A 396 1555 1555 2.21 LINK CD CD A 396 CL CL A 399 1555 1555 2.45 LINK CD CD A 397 CL CL A 400 1555 1555 2.55 CISPEP 1 THR A 349 PRO A 350 0 -6.78 SITE 1 AC1 5 CYS A 304 ASP A 312 LYS A 359 CD A 397 SITE 2 AC1 5 CL A 399 SITE 1 AC2 7 GLU A 301 CYS A 304 ASP A 312 ARG A 328 SITE 2 AC2 7 HIS A 354 CD A 396 CL A 400 SITE 1 AC3 3 GLY A 288 SER A 289 HIS A 290 SITE 1 AC4 5 LYS A 300 CYS A 304 ASP A 312 LYS A 359 SITE 2 AC4 5 CD A 396 SITE 1 AC5 3 ARG A 328 HIS A 354 CD A 397 CRYST1 35.557 43.526 45.471 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 0.028124 0.000000 0.000000 0.00000 SCALE2 0.000000 0.022975 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021992 0.00000