HEADER DNA BINDING PROTEIN 07-AUG-09 3ILE TITLE CRYSTAL STRUCTURE OF ORF157-E86A OF ACIDIANUS FILAMENTOUS VIRUS 1 COMPND MOL_ID: 1; COMPND 2 MOLECULE: PUTATIVE UNCHARACTERIZED PROTEIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ORF157; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ACIDIANUS FILAMENTOUS VIRUS 1; SOURCE 3 ORGANISM_COMMON: AFV-1; SOURCE 4 ORGANISM_TAXID: 235266; SOURCE 5 GENE: AFV1 ORF157; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: ROSETTA(DE3)PLYSS; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PDEST17 KEYWDS VIRUS, ARCHAEA, NUCLEASE, DNA BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR A.GOULET,J.LICHIERE,D.PRANGISHVILI,H.VAN TILBEURGH,C.CAMBILLAU, AUTHOR 2 V.CAMPANACCI REVDAT 5 01-NOV-23 3ILE 1 REMARK REVDAT 4 10-NOV-21 3ILE 1 REMARK SEQADV REVDAT 3 05-FEB-14 3ILE 1 JRNL REVDAT 2 13-JUL-11 3ILE 1 VERSN REVDAT 1 23-MAR-10 3ILE 0 JRNL AUTH A.GOULET,M.PINA,P.REDDER,D.PRANGISHVILI,L.VERA,J.LICHIERE, JRNL AUTH 2 N.LEULLIOT,H.VAN TILBEURGH,M.ORTIZ-LOMBARDIA,V.CAMPANACCI, JRNL AUTH 3 C.CAMBILLAU JRNL TITL ORF157 FROM THE ARCHAEAL VIRUS ACIDIANUS FILAMENTOUS VIRUS 1 JRNL TITL 2 DEFINES A NEW CLASS OF NUCLEASE JRNL REF J.VIROL. V. 84 5025 2010 JRNL REFN ISSN 0022-538X JRNL PMID 20200253 JRNL DOI 10.1128/JVI.01664-09 REMARK 2 REMARK 2 RESOLUTION. 3.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0088 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 3.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 32.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 3088 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 + TEST SET) : 0.258 REMARK 3 R VALUE (WORKING SET) : 0.255 REMARK 3 FREE R VALUE : 0.313 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.500 REMARK 3 FREE R VALUE TEST SET COUNT : 180 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 3.30 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 3.38 REMARK 3 REFLECTION IN BIN (WORKING SET) : 221 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.33 REMARK 3 BIN R VALUE (WORKING SET) : 0.2740 REMARK 3 BIN FREE R VALUE SET COUNT : 14 REMARK 3 BIN FREE R VALUE : 0.3140 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1275 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 0 REMARK 3 REMARK 3 B VALUES. REMARK 3 B VALUE TYPE : LIKELY RESIDUAL REMARK 3 FROM WILSON PLOT (A**2) : 74.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 45.86 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 25.44000 REMARK 3 B22 (A**2) : 25.44000 REMARK 3 B33 (A**2) : -50.88000 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): 0.144 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.728 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 107.618 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.903 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.854 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1324 ; 0.013 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1790 ; 1.427 ; 1.933 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 150 ; 6.965 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 68 ;37.671 ;23.382 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 244 ;19.212 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 8 ;21.548 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 187 ; 0.092 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 998 ; 0.007 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 747 ; 0.451 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1218 ; 0.862 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 577 ; 1.152 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 571 ; 2.070 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 6 A 154 REMARK 3 ORIGIN FOR THE GROUP (A): -37.4990 15.1692 5.4412 REMARK 3 T TENSOR REMARK 3 T11: 0.2686 T22: 0.4354 REMARK 3 T33: 0.2537 T12: 0.2587 REMARK 3 T13: 0.0982 T23: 0.2556 REMARK 3 L TENSOR REMARK 3 L11: 10.3725 L22: 8.8064 REMARK 3 L33: 9.0770 L12: -1.6938 REMARK 3 L13: -3.7017 L23: 2.3576 REMARK 3 S TENSOR REMARK 3 S11: -1.0762 S12: -1.5890 S13: -1.3592 REMARK 3 S21: 0.1783 S22: 0.6770 S23: 0.5727 REMARK 3 S31: 0.3054 S32: 0.9964 S33: 0.3992 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 3ILE COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 11-AUG-09. REMARK 100 THE DEPOSITION ID IS D_1000054556. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-MAR-09 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID14-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.93 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 3286 REMARK 200 RESOLUTION RANGE HIGH (A) : 3.300 REMARK 200 RESOLUTION RANGE LOW (A) : 45.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 10.30 REMARK 200 R MERGE (I) : 0.08600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 21.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 3.48 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 10.70 REMARK 200 R MERGE FOR SHELL (I) : 0.40700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 5.400 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: PDB ENTRY 3II2 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 53.99 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.67 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1M LICL2, 0.01M NICL2, 0.1M TRIS, PH REMARK 280 8.5, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1 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 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+2/3 REMARK 290 6555 -X,-X+Y,-Z+1/3 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 28.45067 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 56.90133 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 56.90133 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 28.45067 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 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 NI NI A 158 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 GLY A 1 REMARK 465 SER A 2 REMARK 465 GLU A 3 REMARK 465 MET A 4 REMARK 465 SER A 5 REMARK 465 ALA A 155 REMARK 465 SER A 156 REMARK 465 ASP A 157 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 158 NI REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 77 NE2 REMARK 620 2 ASP A 79 OD1 68.3 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 NI A 158 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3II2 RELATED DB: PDB REMARK 900 STRUCTURE OF WILD TYPE ORF157 AT 2.0 A OF RESOLUTION REMARK 900 RELATED ID: 3II3 RELATED DB: PDB REMARK 900 STRUCTURE OF WILD TYPE ORF157 AT 2.7 A OF RESOLUTION REMARK 900 RELATED ID: 3ILD RELATED DB: PDB REMARK 900 STRUCTURE OF ORF157-K57A DBREF 3ILE A 2 157 UNP Q70LE6 Q70LE6_AFV1 2 157 SEQADV 3ILE GLY A 1 UNP Q70LE6 EXPRESSION TAG SEQADV 3ILE ALA A 86 UNP Q70LE6 GLU 86 ENGINEERED MUTATION SEQRES 1 A 157 GLY SER GLU MET SER VAL VAL GLU TYR GLU VAL VAL SER SEQRES 2 A 157 LYS ASN LEU THR SER LYS MET SER HIS GLU LEU LEU PHE SEQRES 3 A 157 SER VAL LYS LYS ARG TRP PHE VAL LYS PRO PHE ARG HIS SEQRES 4 A 157 ASP ARG GLN LEU GLY LYS LEU HIS TYR LYS LEU LEU PRO SEQRES 5 A 157 GLY ASN TYR ILE LYS PHE GLY LEU TYR VAL LEU LYS ASN SEQRES 6 A 157 GLN ASP TYR ALA ARG PHE GLU ILE ALA TRP VAL HIS VAL SEQRES 7 A 157 ASP LYS ASP GLY LYS ILE GLU ALA ARG THR VAL TYR SER SEQRES 8 A 157 ILE GLU THR TYR TRP HIS ILE PHE ILE ASP ILE GLU ASN SEQRES 9 A 157 ASP LEU ASN CYS PRO TYR VAL LEU ALA LYS PHE ILE GLU SEQRES 10 A 157 MET ARG PRO GLU PHE HIS LYS THR ALA TRP VAL GLU GLU SEQRES 11 A 157 SER ASN TYR SER ILE ALA GLU ASP ASP ILE GLN MET VAL SEQRES 12 A 157 GLU SER ILE LYS ARG TYR LEU GLU ARG LYS ILE ALA SER SEQRES 13 A 157 ASP HET NI A 158 1 HETNAM NI NICKEL (II) ION FORMUL 2 NI NI 2+ HELIX 1 1 TRP A 96 GLU A 103 1 8 HELIX 2 2 PRO A 109 MET A 118 1 10 HELIX 3 3 ASP A 138 ILE A 154 1 17 SHEET 1 A 5 TRP A 32 PHE A 33 0 SHEET 2 A 5 LYS A 19 SER A 27 -1 N SER A 27 O TRP A 32 SHEET 3 A 5 GLU A 8 ASN A 15 -1 N LYS A 14 O SER A 21 SHEET 4 A 5 LYS A 45 LYS A 49 -1 O LEU A 46 N VAL A 11 SHEET 5 A 5 ARG A 38 ASP A 40 -1 N ASP A 40 O LYS A 45 SHEET 1 B 5 TRP A 32 PHE A 33 0 SHEET 2 B 5 LYS A 19 SER A 27 -1 N SER A 27 O TRP A 32 SHEET 3 B 5 ASN A 54 LEU A 63 -1 O ILE A 56 N PHE A 26 SHEET 4 B 5 TYR A 68 VAL A 78 -1 O VAL A 76 N TYR A 55 SHEET 5 B 5 ILE A 84 TYR A 95 -1 O ARG A 87 N TRP A 75 LINK NE2 HIS A 77 NI NI A 158 1555 1555 2.31 LINK OD1 ASP A 79 NI NI A 158 1555 1555 2.61 SITE 1 AC1 2 HIS A 77 ASP A 79 CRYST1 63.876 63.876 85.352 90.00 90.00 120.00 P 31 2 1 6 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 0.015655 0.009039 0.000000 0.00000 SCALE2 0.000000 0.018077 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011716 0.00000