HEADER HYDROLASE/RNA/DNA 10-SEP-07 2R7Y TITLE SELENIUM DERIVATIZED RNA/DNA HYBRID IN COMPLEX WITH RNASE H CATALYTIC TITLE 2 DOMAIN MUTANT D132N COMPND MOL_ID: 1; COMPND 2 MOLECULE: RNA (5'-R(*UP*CP*GP*AP*CP*A)-3'); COMPND 3 CHAIN: B; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: DNA (5'-D(*DAP*DTP*(SDG)P*DTP*DCP*(SDG))-3'); COMPND 7 CHAIN: C; COMPND 8 ENGINEERED: YES; COMPND 9 MOL_ID: 3; COMPND 10 MOLECULE: RIBONUCLEASE H; COMPND 11 CHAIN: A; COMPND 12 SYNONYM: RNASE H; COMPND 13 EC: 3.1.26.4; COMPND 14 ENGINEERED: YES; COMPND 15 MUTATION: 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: BACILLUS HALODURANS; SOURCE 7 ORGANISM_TAXID: 86665; SOURCE 8 GENE: RNHA; SOURCE 9 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 10 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 11 EXPRESSION_SYSTEM_STRAIN: BL21 PLYSS; SOURCE 12 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 13 EXPRESSION_SYSTEM_PLASMID: PET15B KEYWDS SELENIUM-DNA/RNA, RNASE H, RIBONUCLEASE H RNA-DNA COMPLEX, CYTOPLASM, KEYWDS 2 ENDONUCLEASE, HYDROLASE, MAGNESIUM, MANGANESE, METAL-BINDING, KEYWDS 3 HYDROLASE-RNA-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR J.-S.JIANG,O.GERLITS,Z.HUANG REVDAT 4 21-FEB-24 2R7Y 1 REMARK REVDAT 3 20-OCT-21 2R7Y 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 2R7Y 1 VERSN REVDAT 1 06-MAY-08 2R7Y 0 JRNL AUTH J.-S.JIANG,O.GERLITS,Z.HUANG JRNL TITL SELENIUM DERIVATIZED RNA/DNA HYBRID IN COMPLEX WITH RNASE H JRNL TITL 2 CATALYTIC DOMAIN MUTANT D132N JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.2 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) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 23.45 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 873417.700 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 92.8 REMARK 3 NUMBER OF REFLECTIONS : 16187 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) : 0.185 REMARK 3 FREE R VALUE : 0.231 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 7.300 REMARK 3 FREE R VALUE TEST SET COUNT : 1187 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.007 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) : 1.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.91 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 76.10 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2043 REMARK 3 BIN R VALUE (WORKING SET) : 0.2000 REMARK 3 BIN FREE R VALUE : 0.2250 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 7.00 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 153 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.018 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1077 REMARK 3 NUCLEIC ACID ATOMS : 245 REMARK 3 HETEROGEN ATOMS : 6 REMARK 3 SOLVENT ATOMS : 178 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.10 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 3.24000 REMARK 3 B22 (A**2) : 0.48000 REMARK 3 B33 (A**2) : -3.72000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.96000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.18 REMARK 3 ESD FROM SIGMAA (A) : 0.06 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) : 0.24 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.05 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 20.20 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.190 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) : 1.340 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.960 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.140 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.100 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.40 REMARK 3 BSOL : 58.14 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 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : DNA-RNA_UMS.PAR REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 PARAMETER FILE 6 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : DNA-RNA.TOP REMARK 3 TOPOLOGY FILE 3 : WATER.TOP REMARK 3 TOPOLOGY FILE 4 : ION.TOP REMARK 3 TOPOLOGY FILE 5 : UMS.TOP REMARK 3 TOPOLOGY FILE 6 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: BULK SOLVENT MODEL USED REMARK 4 REMARK 4 2R7Y COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-DEC-07. REMARK 100 THE DEPOSITION ID IS D_1000044537. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 12-AUG-06 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 2 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X12C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9797,0.9800,0.9795 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 17227 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 40.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.6 REMARK 200 DATA REDUNDANCY : 7.300 REMARK 200 R MERGE (I) : 0.06000 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 15.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.6 REMARK 200 DATA REDUNDANCY IN SHELL : 6.50 REMARK 200 R MERGE FOR SHELL (I) : 0.27800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 10.50 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.85 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.50 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M MES, 12% PEG 20000, PH 6.5, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 40.33000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 18.90950 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 40.33000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 18.90950 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: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA 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 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 GLU A 154 CG CD OE1 OE2 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 C 2 C4 DT C 2 C5 0.060 REMARK 500 DT C 2 C5 DT C 2 C6 0.044 REMARK 500 DT C 4 C4 DT C 4 C5 0.068 REMARK 500 DT C 4 C5 DT C 4 C6 0.048 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 G B 3 O4' - C1' - N9 ANGL. DEV. = -6.5 DEGREES REMARK 500 DT C 2 O4' - C1' - N1 ANGL. DEV. = -8.8 DEGREES REMARK 500 DT C 4 O4' - C1' - N1 ANGL. DEV. = -7.5 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 MG A 402 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 C B 5 OP1 REMARK 620 2 ASP A 71 OD2 93.2 REMARK 620 3 ASP A 192 OD1 164.5 100.3 REMARK 620 4 HOH A 403 O 99.9 81.1 89.7 REMARK 620 5 HOH A 405 O 89.4 166.1 79.3 85.0 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 401 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 71 OD1 REMARK 620 2 GLU A 109 OE2 123.2 REMARK 620 3 ASN A 132 OD1 127.6 97.2 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 C 7 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 402 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2G8U RELATED DB: PDB REMARK 900 B. HALODURANS RNASE H CATALYTIC DOMAIN D132N MUTANT IN COMPLEX WITH REMARK 900 MG2+ AND RNA/DNA HYBRID REMARK 900 RELATED ID: 1ZBI RELATED DB: PDB REMARK 900 BACILLUS HALODURANS RNASE H CATALYTIC DOMAIN MUTANT D132N IN REMARK 900 COMPLEX WITH 12-MER RNA/DNA HYBRID DBREF 2R7Y A 62 193 UNP Q9KEI9 RNH1_BACHD 62 193 DBREF 2R7Y B 1 6 PDB 2R7Y 2R7Y 1 6 DBREF 2R7Y C 1 6 PDB 2R7Y 2R7Y 1 6 SEQADV 2R7Y ASN A 132 UNP Q9KEI9 ASP 132 ENGINEERED MUTATION SEQRES 1 B 6 U C G A C A SEQRES 1 C 6 DA DT SDG DT DC SDG SEQRES 1 A 132 GLU ILE ILE TRP GLU SER LEU SER VAL ASP VAL GLY SER SEQRES 2 A 132 GLN GLY ASN PRO GLY ILE VAL GLU TYR LYS GLY VAL ASP SEQRES 3 A 132 THR LYS THR GLY GLU VAL LEU PHE GLU ARG GLU PRO ILE SEQRES 4 A 132 PRO ILE GLY THR ASN ASN MET GLY GLU PHE LEU ALA ILE SEQRES 5 A 132 VAL HIS GLY LEU ARG TYR LEU LYS GLU ARG ASN SER ARG SEQRES 6 A 132 LYS PRO ILE TYR SER ASN SER GLN THR ALA ILE LYS TRP SEQRES 7 A 132 VAL LYS ASP LYS LYS ALA LYS SER THR LEU VAL ARG ASN SEQRES 8 A 132 GLU GLU THR ALA LEU ILE TRP LYS LEU VAL ASP GLU ALA SEQRES 9 A 132 GLU GLU TRP LEU ASN THR HIS THR TYR GLU THR PRO ILE SEQRES 10 A 132 LEU LYS TRP GLN THR ASP LYS TRP GLY GLU ILE LYS ALA SEQRES 11 A 132 ASP TYR MODRES 2R7Y SDG C 3 DG MODRES 2R7Y SDG C 6 DG HET SDG C 3 22 HET SDG C 6 22 HET PO4 C 7 4 HET MG A 401 1 HET MG A 402 1 HETNAM SDG 2-AMINO-9-(2-DEOXY-5-O-PHOSPHONO-BETA-D-ERYTHRO- HETNAM 2 SDG PENTOFURANOSYL)-9H-PURINE-6-SELENOL HETNAM PO4 PHOSPHATE ION HETNAM MG MAGNESIUM ION FORMUL 2 SDG 2(C10 H14 N5 O6 P SE) FORMUL 4 PO4 O4 P 3- FORMUL 5 MG 2(MG 2+) FORMUL 7 HOH *178(H2 O) HELIX 1 1 THR A 104 ARG A 123 1 20 HELIX 2 2 SER A 133 LYS A 143 1 11 HELIX 3 3 THR A 155 ASN A 170 1 16 HELIX 4 4 GLN A 182 GLY A 187 1 6 SHEET 1 A 5 VAL A 93 GLY A 103 0 SHEET 2 A 5 GLY A 79 ASP A 87 -1 N VAL A 81 O ILE A 100 SHEET 3 A 5 LEU A 68 GLN A 75 -1 N SER A 69 O VAL A 86 SHEET 4 A 5 ILE A 129 SER A 131 1 O TYR A 130 N LEU A 68 SHEET 5 A 5 ILE A 178 LYS A 180 1 O LEU A 179 N ILE A 129 LINK O3' DT C 2 P SDG C 3 1555 1555 1.61 LINK O3' SDG C 3 P DT C 4 1555 1555 1.61 LINK O3' DC C 5 P SDG C 6 1555 1555 1.61 LINK O3' SDG C 6 P PO4 C 7 1555 1555 1.61 LINK OP1 C B 5 MG MG A 402 1555 1555 2.24 LINK OD1 ASP A 71 MG MG A 401 1555 1555 2.20 LINK OD2 ASP A 71 MG MG A 402 1555 1555 2.32 LINK OE2 GLU A 109 MG MG A 401 1555 1555 2.16 LINK OD1 ASN A 132 MG MG A 401 1555 1555 2.36 LINK OD1 ASP A 192 MG MG A 402 1555 1555 2.29 LINK MG MG A 402 O HOH A 403 1555 1555 2.35 LINK MG MG A 402 O HOH A 405 1555 1555 2.42 CISPEP 1 ASN A 77 PRO A 78 0 -0.03 SITE 1 AC1 6 TRP A 139 LYS A 146 DA C 1 HOH C 50 SITE 2 AC1 6 HOH C 134 HOH C 148 SITE 1 AC2 4 ASP A 71 GLU A 109 ASN A 132 HOH A 412 SITE 1 AC3 5 ASP A 71 ASP A 192 HOH A 403 HOH A 404 SITE 2 AC3 5 HOH A 405 CRYST1 80.660 37.819 61.937 90.00 96.60 90.00 C 1 2 1 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 0.012398 0.000000 0.001434 0.00000 SCALE2 0.000000 0.026442 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016253 0.00000