HEADER TRANSFERASE 09-DEC-09 3KZZ TITLE CRYSTAL STRUCTURE OF SNAP-TAG BOUND TO ITS SUBSTRATE BENZYLGUANINE COMPND MOL_ID: 1; COMPND 2 MOLECULE: SNAP-TAG; COMPND 3 CHAIN: A; COMPND 4 EC: 2.1.1.63; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_TAXID: 9606; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3); SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PRSET KEYWDS PROTEIN TAG, PROTEIN ENGINEERING, BENZYLGUANINE, SUBSTRATE BINDING, KEYWDS 2 TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR S.SCHMITT,F.POJER,M.SCHILTZ,K.JOHNSSON REVDAT 2 01-NOV-23 3KZZ 1 REMARK LINK REVDAT 1 15-DEC-10 3KZZ 0 JRNL AUTH S.SCHMITT,B.MOLLWITZ,F.POJER,M.BANNWARTH,M.SCHILTZ, JRNL AUTH 2 K.JOHNSSON JRNL TITL SNAP-TAG STRUCTURE JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.89 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0102 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) : 1.89 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 38.58 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 15293 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) : 0.189 REMARK 3 R VALUE (WORKING SET) : 0.187 REMARK 3 FREE R VALUE : 0.222 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 805 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) : 1.89 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.94 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1082 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 100.0 REMARK 3 BIN R VALUE (WORKING SET) : 0.2160 REMARK 3 BIN FREE R VALUE SET COUNT : 57 REMARK 3 BIN FREE R VALUE : 0.2270 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1215 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 19 REMARK 3 SOLVENT ATOMS : 114 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 29.64 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.84 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 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): 0.134 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.128 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.082 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.679 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.952 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.931 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1279 ; 0.015 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1742 ; 1.483 ; 1.983 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 160 ; 5.969 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 53 ;38.978 ;24.340 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 203 ;13.180 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 5 ;23.877 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 190 ; 0.097 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 979 ; 0.008 ; 0.021 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): 790 ; 0.902 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1266 ; 1.576 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 489 ; 2.295 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 474 ; 3.689 ; 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 : NULL 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: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 3KZZ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 24-DEC-09. REMARK 100 THE DEPOSITION ID IS D_1000056659. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 29-JAN-09 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 : ESRF REMARK 200 BEAMLINE : BM30A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.979653 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL MONOCHROMATOR REMARK 200 (WITH EITHER SI (111) OR SI (311) REMARK 200 ) BETWEEN TWO CYLINDRICAL REMARK 200 PARABOLIC MIRRORS. REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MAR CCD 165 MM REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 16100 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.890 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 200 DATA REDUNDANCY : 9.200 REMARK 200 R MERGE (I) : 0.06100 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 32.1700 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.89 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.01 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.7 REMARK 200 DATA REDUNDANCY IN SHELL : 9.20 REMARK 200 R MERGE FOR SHELL (I) : 0.27800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 6.110 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CCP4 PHASER REMARK 200 STARTING MODEL: PDB ENTRY 3KZY REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.51 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.49 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 32% PEG3350, 100 MM BISTRIS PH 6.5, REMARK 280 400 MM NACL , VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 2 2 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 -Y,X,Z+3/4 REMARK 290 4555 Y,-X,Z+1/4 REMARK 290 5555 -X,Y,-Z REMARK 290 6555 X,-Y,-Z+1/2 REMARK 290 7555 Y,X,-Z+1/4 REMARK 290 8555 -Y,-X,-Z+3/4 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 32.40500 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 48.60750 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 16.20250 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 0.00000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 32.40500 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 16.20250 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 48.60750 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 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 -2 REMARK 465 PRO A -1 REMARK 465 GLY A 0 REMARK 465 SER A 1 REMARK 465 ASP A 2 REMARK 465 LYS A 3 REMARK 465 LYS A 36 REMARK 465 GLY A 37 REMARK 465 THR A 38 REMARK 465 SER A 39 REMARK 465 ALA A 40 REMARK 465 ALA A 41 REMARK 465 ASP A 42 REMARK 465 ALA A 43 REMARK 465 VAL A 44 REMARK 465 GLU A 45 REMARK 465 VAL A 46 REMARK 465 PRO A 47 REMARK 465 ALA A 48 REMARK 465 PRO A 49 REMARK 465 ALA A 50 REMARK 465 ALA A 51 REMARK 465 VAL A 52 REMARK 465 LEU A 53 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 ASN A 67 CA CB CG OD1 ND2 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 5 132.99 84.88 REMARK 500 ALA A 125 -6.00 80.28 REMARK 500 ILE A 141 -62.02 68.39 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 180 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 5 SG REMARK 620 2 CYS A 24 SG 117.6 REMARK 620 3 HIS A 29 NE2 106.9 111.8 REMARK 620 4 HIS A 85 ND1 103.3 105.6 111.3 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 180 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OBG A 181 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3KZY RELATED DB: PDB REMARK 900 SNAP-TAG REMARK 900 RELATED ID: 3L00 RELATED DB: PDB REMARK 900 BENZYLATED SNAP-TAG REMARK 999 REMARK 999 SEQUENCE REMARK 999 1. THE SEQUENCE HAS BEEN DEPOSITED TO EMBL WITH ACCESSION NUMBER REMARK 999 FR727225. 2. RESIDUE CYS145ALA IS A MUTATION. DBREF 3KZZ A -2 179 PDB 3KZZ 3KZZ -2 179 SEQRES 1 A 182 GLY PRO GLY SER ASP LYS ASP CYS GLU MET LYS ARG THR SEQRES 2 A 182 THR LEU ASP SER PRO LEU GLY LYS LEU GLU LEU SER GLY SEQRES 3 A 182 CYS GLU GLN GLY LEU HIS GLU ILE ILE PHE LEU GLY LYS SEQRES 4 A 182 GLY THR SER ALA ALA ASP ALA VAL GLU VAL PRO ALA PRO SEQRES 5 A 182 ALA ALA VAL LEU GLY GLY PRO GLU PRO LEU MET GLN ALA SEQRES 6 A 182 THR ALA TRP LEU ASN ALA TYR PHE HIS GLN PRO GLU ALA SEQRES 7 A 182 ILE GLU GLU PHE PRO VAL PRO ALA LEU HIS HIS PRO VAL SEQRES 8 A 182 PHE GLN GLN GLU SER PHE THR ARG GLN VAL LEU TRP LYS SEQRES 9 A 182 LEU LEU LYS VAL VAL LYS PHE GLY GLU VAL ILE SER TYR SEQRES 10 A 182 SER HIS LEU ALA ALA LEU ALA GLY ASN PRO ALA ALA THR SEQRES 11 A 182 ALA ALA VAL LYS THR ALA LEU SER GLY ASN PRO VAL PRO SEQRES 12 A 182 ILE LEU ILE PRO ALA HIS ARG VAL VAL GLN GLY ASP LEU SEQRES 13 A 182 ASP VAL GLY GLY TYR GLU GLY GLY LEU ALA VAL LYS GLU SEQRES 14 A 182 TRP LEU LEU ALA HIS GLU GLY HIS ARG LEU GLY LYS ARG HET ZN A 180 1 HET OBG A 181 18 HETNAM ZN ZINC ION HETNAM OBG 6-(BENZYLOXY)-9H-PURIN-2-AMINE HETSYN OBG O6-BENZYLGUANINE FORMUL 2 ZN ZN 2+ FORMUL 3 OBG C12 H11 N5 O FORMUL 4 HOH *114(H2 O) HELIX 1 1 GLU A 57 GLN A 72 1 16 HELIX 2 2 PRO A 73 PHE A 79 5 7 HELIX 3 3 HIS A 86 GLN A 91 1 6 HELIX 4 4 SER A 93 VAL A 106 1 14 HELIX 5 5 TYR A 114 ALA A 121 1 8 HELIX 6 6 ALA A 126 GLY A 136 1 11 HELIX 7 7 PRO A 144 HIS A 146 5 3 HELIX 8 8 GLY A 161 GLU A 172 1 12 SHEET 1 A 3 LYS A 8 LEU A 12 0 SHEET 2 A 3 LYS A 18 CYS A 24 -1 O LEU A 19 N LEU A 12 SHEET 3 A 3 GLY A 27 GLY A 35 -1 O ILE A 32 N GLU A 20 SHEET 1 B 2 ILE A 112 SER A 113 0 SHEET 2 B 2 VAL A 148 VAL A 149 1 O VAL A 149 N ILE A 112 LINK SG CYS A 5 ZN ZN A 180 1555 1555 2.35 LINK SG CYS A 24 ZN ZN A 180 1555 1555 2.31 LINK NE2 HIS A 29 ZN ZN A 180 1555 1555 2.10 LINK ND1 HIS A 85 ZN ZN A 180 1555 1555 1.98 SITE 1 AC1 4 CYS A 5 CYS A 24 HIS A 29 HIS A 85 SITE 1 AC2 10 TYR A 114 LEU A 134 ASN A 137 ALA A 145 SITE 2 AC2 10 VAL A 148 GLY A 157 TYR A 158 GLU A 159 SITE 3 AC2 10 LYS A 165 HOH A 248 CRYST1 77.160 77.160 64.810 90.00 90.00 90.00 P 43 2 2 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 0.012960 0.000000 0.000000 0.00000 SCALE2 0.000000 0.012960 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015430 0.00000