HEADER RNA 03-MAY-02 1LNT TITLE CRYSTAL STRUCTURE OF THE HIGHLY CONSERVED RNA INTERNAL LOOP OF SRP COMPND MOL_ID: 1; COMPND 2 MOLECULE: 5'-R(*GP*CP*GP*UP*CP*AP*GP*GP*UP*CP*(CBV)P*G)-3'; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: 5'-R(*CP*GP*GP*AP*AP*GP*CP*AP*GP*(CBV)P*GP*C)-3'; COMPND 7 CHAIN: B; COMPND 8 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 MOL_ID: 2; SOURCE 4 SYNTHETIC: YES KEYWDS SRP, INTERNAL LOOP, MISPAIR, RNA EXPDTA X-RAY DIFFRACTION AUTHOR J.DENG,Y.XIONG,B.PAN,M.SUNDARALINGAM REVDAT 4 14-FEB-24 1LNT 1 REMARK LINK REVDAT 3 02-NOV-11 1LNT 1 HET VERSN REVDAT 2 24-FEB-09 1LNT 1 VERSN REVDAT 1 03-JUN-03 1LNT 0 JRNL AUTH J.DENG,Y.XIONG,B.PAN,M.SUNDARALINGAM JRNL TITL STRUCTURE OF AN RNA DODECAMER CONTAINING A FRAGMENT FROM SRP JRNL TITL 2 DOMAIN IV OF ESCHERICHIA COLI. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 59 1004 2003 JRNL REFN ISSN 0907-4449 JRNL PMID 12777762 JRNL DOI 10.1107/S0907444903006747 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 17827 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.200 REMARK 3 FREE R VALUE : 0.225 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 1677 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 : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL 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 : 0 REMARK 3 NUCLEIC ACID ATOMS : 512 REMARK 3 HETEROGEN ATOMS : 7 REMARK 3 SOLVENT ATOMS : 107 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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) : 0.012 REMARK 3 BOND ANGLES (DEGREES) : 1.645 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL 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 1LNT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-MAY-02. REMARK 100 THE DEPOSITION ID IS D_1000016117. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-MAY-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 14-BM-D REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9196, 0.9193, 0.8985 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 : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 18086 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL 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: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.29 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.69 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: MPD, CACODYLATE BUFFER, MGCL2, CACL2, REMARK 280 SPERMIDINE, PH 7.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 298K 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 66.98000 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 100.47000 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 33.49000 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 66.98000 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 33.49000 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 100.47000 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: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 MG MG A 102 LIES ON A SPECIAL POSITION. REMARK 375 CA CA A 113 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 286 LIES ON A SPECIAL POSITION. REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 CBV A 11 O2' REMARK 470 CBV B 22 O2' 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 CBV A 11 O3' G A 12 P 0.145 REMARK 500 CBV B 22 O3' G B 23 P 0.166 REMARK 500 REMARK 500 REMARK: NULL REMARK 615 REMARK 615 ZERO OCCUPANCY ATOM REMARK 615 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 615 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 615 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 615 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 615 M RES C SSEQI REMARK 615 HOH A 262 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 CA A 112 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 G A 7 OP2 REMARK 620 2 HOH A 236 O 100.4 REMARK 620 3 HOH A 240 O 70.3 78.4 REMARK 620 4 HOH A 242 O 138.8 84.2 70.7 REMARK 620 5 HOH A 247 O 71.7 139.7 61.6 78.6 REMARK 620 6 HOH A 261 O 75.9 144.7 129.9 122.0 73.4 REMARK 620 7 HOH A 262 O 131.4 97.0 158.3 87.8 118.2 64.2 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 102 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 208 O REMARK 620 2 HOH A 208 O 153.5 REMARK 620 3 HOH A 280 O 72.9 101.2 REMARK 620 4 HOH A 280 O 101.3 72.7 154.7 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 103 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 270 O REMARK 620 2 HOH B 260 O 77.6 REMARK 620 3 HOH B 271 O 163.2 85.5 REMARK 620 4 HOH B 308 O 106.2 81.0 71.1 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 104 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 220 O REMARK 620 2 HOH A 234 O 89.1 REMARK 620 3 HOH A 243 O 81.4 149.2 REMARK 620 4 HOH A 245 O 92.4 89.9 119.5 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 113 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 214 O REMARK 620 2 HOH A 214 O 179.6 REMARK 620 3 HOH A 233 O 100.6 79.1 REMARK 620 4 HOH A 233 O 79.1 100.6 75.4 REMARK 620 5 HOH A 234 O 90.1 90.2 98.2 166.0 REMARK 620 6 HOH A 234 O 90.2 90.1 166.0 98.2 90.5 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 101 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH B 250 O REMARK 620 2 HOH B 255 O 70.9 REMARK 620 3 HOH B 269 O 97.4 108.9 REMARK 620 4 HOH B 272 O 104.2 107.9 141.8 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B 111 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH B 213 O REMARK 620 2 HOH B 218 O 90.5 REMARK 620 3 HOH B 219 O 86.5 177.0 REMARK 620 4 HOH B 222 O 175.6 89.4 93.6 REMARK 620 5 HOH B 263 O 90.4 85.0 94.4 94.0 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 MG B 101 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 102 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 103 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 104 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 111 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 112 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 113 DBREF 1LNT A 1 12 PDB 1LNT 1LNT 1 12 DBREF 1LNT B 13 24 PDB 1LNT 1LNT 13 24 SEQRES 1 A 12 G C G U C A G G U C CBV G SEQRES 1 B 12 C G G A A G C A G CBV G C MODRES 1LNT CBV A 11 C MODRES 1LNT CBV B 22 C HET CBV A 11 20 HET CBV B 22 20 HET MG A 102 1 HET MG A 103 1 HET MG A 104 1 HET CA A 112 1 HET CA A 113 1 HET MG B 101 1 HET CA B 111 1 HETNAM CBV 5-BROMOCYTIDINE 5'-(DIHYDROGEN PHOSPHATE) HETNAM MG MAGNESIUM ION HETNAM CA CALCIUM ION FORMUL 1 CBV 2(C9 H13 BR N3 O8 P) FORMUL 3 MG 4(MG 2+) FORMUL 6 CA 3(CA 2+) FORMUL 10 HOH *107(H2 O) LINK O3' C A 10 P CBV A 11 1555 1555 1.64 LINK O3' CBV A 11 P G A 12 1555 1555 1.75 LINK O3' G B 21 P CBV B 22 1555 1555 1.61 LINK O3' CBV B 22 P G B 23 1555 1555 1.77 LINK OP2 G A 7 CA CA A 112 1555 1555 2.61 LINK MG MG A 102 O HOH A 208 1555 1555 2.01 LINK MG MG A 102 O HOH A 208 1555 7555 2.02 LINK MG MG A 102 O HOH A 280 1555 1555 1.87 LINK MG MG A 102 O HOH A 280 1555 7555 1.87 LINK MG MG A 103 O HOH A 270 1555 1555 2.08 LINK MG MG A 103 O HOH B 260 1555 1555 2.63 LINK MG MG A 103 O HOH B 271 1555 1555 2.33 LINK MG MG A 103 O HOH B 308 1555 1555 2.45 LINK MG MG A 104 O HOH A 220 1555 1555 1.97 LINK MG MG A 104 O HOH A 234 1555 1555 2.21 LINK MG MG A 104 O HOH A 243 1555 1555 2.23 LINK MG MG A 104 O HOH A 245 1555 1555 2.46 LINK CA CA A 112 O HOH A 236 1555 1555 1.89 LINK CA CA A 112 O HOH A 240 1555 1555 2.41 LINK CA CA A 112 O HOH A 242 1555 1555 2.25 LINK CA CA A 112 O HOH A 247 1555 1555 2.64 LINK CA CA A 112 O HOH A 261 1555 1555 2.08 LINK CA CA A 112 O HOH A 262 1555 1555 2.27 LINK CA CA A 113 O HOH A 214 1555 1555 2.30 LINK CA CA A 113 O HOH A 214 1555 7555 2.30 LINK CA CA A 113 O HOH A 233 1555 1555 2.49 LINK CA CA A 113 O HOH A 233 1555 7555 2.49 LINK CA CA A 113 O HOH A 234 1555 1555 2.07 LINK CA CA A 113 O HOH A 234 1555 7555 2.07 LINK MG MG B 101 O HOH B 250 1555 1555 2.14 LINK MG MG B 101 O HOH B 255 1555 1555 2.00 LINK MG MG B 101 O HOH B 269 1555 1555 1.86 LINK MG MG B 101 O HOH B 272 1555 1555 2.64 LINK CA CA B 111 O HOH B 213 1555 1555 2.18 LINK CA CA B 111 O HOH B 218 1555 1555 2.10 LINK CA CA B 111 O HOH B 219 1555 1555 2.03 LINK CA CA B 111 O HOH B 222 1555 1555 2.29 LINK CA CA B 111 O HOH B 263 1555 1555 1.74 SITE 1 AC1 4 HOH B 250 HOH B 255 HOH B 269 HOH B 272 SITE 1 AC2 2 HOH A 208 HOH A 280 SITE 1 AC3 4 HOH A 270 HOH B 260 HOH B 271 HOH B 308 SITE 1 AC4 4 HOH A 220 HOH A 234 HOH A 243 HOH A 245 SITE 1 AC5 5 HOH B 213 HOH B 218 HOH B 219 HOH B 222 SITE 2 AC5 5 HOH B 263 SITE 1 AC6 6 G A 7 HOH A 236 HOH A 240 HOH A 242 SITE 2 AC6 6 HOH A 247 HOH A 261 SITE 1 AC7 3 HOH A 214 HOH A 233 HOH A 234 CRYST1 35.610 35.610 133.960 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 0.028082 0.000000 0.000000 0.00000 SCALE2 0.000000 0.028082 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007465 0.00000