HEADER RNA 12-SEP-14 4RBQ TITLE 32 BASE PAIR OLIGO(U) RNA COMPND MOL_ID: 1; COMPND 2 MOLECULE: U-HELIX RNA FROM TRYPANOSOME EDITING; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 4 ORGANISM_TAXID: 32630 KEYWDS DOUBLE HELIX, OLIGOU, 3' U-TAIL, ATOMIC RESOLUTION, A-FORM RNA, KEYWDS 2 TRYPANOSOME RNA EDITING SUBSTRATE, MITOCHONDRION, RNA EXPDTA X-RAY DIFFRACTION AUTHOR B.H.M.MOOERS REVDAT 4 03-APR-24 4RBQ 1 REMARK REVDAT 3 28-FEB-24 4RBQ 1 REMARK LINK REVDAT 2 22-NOV-17 4RBQ 1 REMARK REVDAT 1 11-NOV-15 4RBQ 0 JRNL AUTH B.H.M.MOOERS JRNL TITL STRUCTURE OF THE TRYPANOSOME RNA EDITING U-HELIX WITH 16 JRNL TITL 2 CONTIGUOUS US JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH B.H.MOOERS REMARK 1 TITL FUSION RNAS IN CRYSTALLOGRAPHIC STUDIES OF DOUBLE-STRANDED REMARK 1 TITL 2 RNA FROM TRYPANOSOME RNA EDITING. REMARK 1 REF METHODS MOL.BIOL. V.1240 191 2015 REMARK 1 REFN ISSN 1064-3745 REMARK 1 PMID 25352146 REMARK 1 DOI 10.1007/978-1-4939-1896-6_14 REMARK 2 REMARK 2 RESOLUTION. 1.05 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.7.3_927) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.05 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 36.79 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 0.230 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 3 NUMBER OF REFLECTIONS : 44972 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.131 REMARK 3 R VALUE (WORKING SET) : 0.131 REMARK 3 FREE R VALUE : 0.154 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 2.050 REMARK 3 FREE R VALUE TEST SET COUNT : 921 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 36.8122 - 2.4037 0.97 6804 138 0.1251 0.1486 REMARK 3 2 2.4037 - 1.9079 0.97 6769 160 0.1288 0.1607 REMARK 3 3 1.9079 - 1.6667 1.00 6950 153 0.1141 0.1320 REMARK 3 4 1.6667 - 1.5143 1.00 6963 144 0.1196 0.1250 REMARK 3 5 1.5143 - 1.4058 1.00 7007 148 0.1221 0.1526 REMARK 3 6 1.4058 - 1.3229 1.00 6953 154 0.1305 0.1616 REMARK 3 7 1.3229 - 1.2567 1.00 6922 140 0.1367 0.1657 REMARK 3 8 1.2567 - 1.2020 1.00 6994 164 0.1328 0.1778 REMARK 3 9 1.2020 - 1.1557 1.00 6928 138 0.1447 0.1575 REMARK 3 10 1.1557 - 1.1158 1.00 6999 124 0.1643 0.2251 REMARK 3 11 1.1158 - 1.0809 1.00 6998 117 0.2016 0.2098 REMARK 3 12 1.0809 - 1.0500 0.99 6876 163 0.2776 0.2600 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.100 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 16.190 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 9.50 REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.00070 REMARK 3 B22 (A**2) : 1.00070 REMARK 3 B33 (A**2) : -2.00130 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.004 754 REMARK 3 ANGLE : 0.898 1172 REMARK 3 CHIRALITY : 0.034 159 REMARK 3 PLANARITY : 0.012 32 REMARK 3 DIHEDRAL : 5.895 380 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4RBQ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 18-SEP-14. REMARK 100 THE DEPOSITION ID IS D_1000087147. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 10-MAY-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 : SSRL REMARK 200 BEAMLINE : BL7-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97946 REMARK 200 MONOCHROMATOR : SIDE SCATTERING I-BEAM BENT REMARK 200 SINGLE CRYSTAL, ASYMMETRIC CUT REMARK 200 4.965 DEGREES REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : MOLREP REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 45101 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.050 REMARK 200 RESOLUTION RANGE LOW (A) : 36.800 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 4.000 REMARK 200 R MERGE (I) : 0.05700 REMARK 200 R SYM (I) : 0.05700 REMARK 200 FOR THE DATA SET : 20.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.05 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: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: IDEAL A-FORM RNA REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.81 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.31 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 50 MM SODIUM CACODYLATE, PH 6.5, 200 REMARK 280 MM POTASSIUM CHLORIDE, 75 MM MAGNESIUM ACETATE, 900 MM LITHIUM REMARK 280 SULFATE, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 295K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z REMARK 290 6555 -X,-X+Y,-Z REMARK 290 7555 X+2/3,Y+1/3,Z+1/3 REMARK 290 8555 -Y+2/3,X-Y+1/3,Z+1/3 REMARK 290 9555 -X+Y+2/3,-X+1/3,Z+1/3 REMARK 290 10555 Y+2/3,X+1/3,-Z+1/3 REMARK 290 11555 X-Y+2/3,-Y+1/3,-Z+1/3 REMARK 290 12555 -X+2/3,-X+Y+1/3,-Z+1/3 REMARK 290 13555 X+1/3,Y+2/3,Z+2/3 REMARK 290 14555 -Y+1/3,X-Y+2/3,Z+2/3 REMARK 290 15555 -X+Y+1/3,-X+2/3,Z+2/3 REMARK 290 16555 Y+1/3,X+2/3,-Z+2/3 REMARK 290 17555 X-Y+1/3,-Y+2/3,-Z+2/3 REMARK 290 18555 -X+1/3,-X+Y+2/3,-Z+2/3 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 0.00000 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 0.00000 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 0.00000 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 0.00000 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 21.44500 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 12.38128 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 88.97867 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 21.44500 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 12.38128 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 88.97867 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 21.44500 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 12.38128 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 88.97867 REMARK 290 SMTRY1 10 -0.500000 0.866025 0.000000 21.44500 REMARK 290 SMTRY2 10 0.866025 0.500000 0.000000 12.38128 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 88.97867 REMARK 290 SMTRY1 11 1.000000 0.000000 0.000000 21.44500 REMARK 290 SMTRY2 11 0.000000 -1.000000 0.000000 12.38128 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 88.97867 REMARK 290 SMTRY1 12 -0.500000 -0.866025 0.000000 21.44500 REMARK 290 SMTRY2 12 -0.866025 0.500000 0.000000 12.38128 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 88.97867 REMARK 290 SMTRY1 13 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 24.76255 REMARK 290 SMTRY3 13 0.000000 0.000000 1.000000 177.95733 REMARK 290 SMTRY1 14 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 14 0.866025 -0.500000 0.000000 24.76255 REMARK 290 SMTRY3 14 0.000000 0.000000 1.000000 177.95733 REMARK 290 SMTRY1 15 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 15 -0.866025 -0.500000 0.000000 24.76255 REMARK 290 SMTRY3 15 0.000000 0.000000 1.000000 177.95733 REMARK 290 SMTRY1 16 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 16 0.866025 0.500000 0.000000 24.76255 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 177.95733 REMARK 290 SMTRY1 17 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 17 0.000000 -1.000000 0.000000 24.76255 REMARK 290 SMTRY3 17 0.000000 0.000000 -1.000000 177.95733 REMARK 290 SMTRY1 18 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 18 -0.866025 0.500000 0.000000 24.76255 REMARK 290 SMTRY3 18 0.000000 0.000000 -1.000000 177.95733 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 2920 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11420 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -29.0 KCAL/MOL 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 350 BIOMT1 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 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 K K A 101 LIES ON A SPECIAL POSITION. REMARK 375 K K A 102 LIES ON A SPECIAL POSITION. REMARK 375 K K A 103 LIES ON A SPECIAL POSITION. REMARK 375 K K A 104 LIES ON A SPECIAL POSITION. REMARK 375 K K A 105 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 202 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 205 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 212 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 216 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 221 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 225 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 226 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 319 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 361 LIES ON A SPECIAL POSITION. 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 K A 101 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 A A 10 OP1 REMARK 620 2 HOH A 432 O 67.5 REMARK 620 3 HOH A 432 O 92.5 35.6 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 102 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 A A 16 OP1 REMARK 620 2 HOH A 320 O 70.2 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 105 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 U A 20 O2' REMARK 620 2 HOH A 225 O 71.1 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 104 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 U A 21 OP1 REMARK 620 2 HOH A 404 O 49.6 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 103 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 U A 31 O2' REMARK 620 2 U A 31 O3' 52.0 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 K A 101 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 102 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 103 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 104 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 105 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3ND3 RELATED DB: PDB REMARK 900 U-HELIX 16-MER DSRNA DBREF 4RBQ A 1 32 PDB 4RBQ 4RBQ 1 32 SEQRES 1 A 32 A G A G A A G A A A G G G SEQRES 2 A 32 A A A U U U U U U U U U U SEQRES 3 A 32 U U U U U U HET K A 101 1 HET K A 102 1 HET K A 103 1 HET K A 104 1 HET K A 105 1 HETNAM K POTASSIUM ION FORMUL 2 K 5(K 1+) FORMUL 7 HOH *247(H2 O) LINK OP1 A A 10 K K A 101 1555 1555 2.86 LINK OP1 A A 16 K K A 102 1555 1555 2.86 LINK O2' U A 20 K K A 105 1555 1555 2.84 LINK OP1 U A 21 K K A 104 1555 1555 2.87 LINK O2' U A 31 K K A 103 1555 1555 2.85 LINK O3' U A 31 K K A 103 1555 1555 3.41 LINK K K A 101 O BHOH A 432 1555 1555 3.15 LINK K K A 101 O AHOH A 432 1555 1555 3.23 LINK K K A 102 O HOH A 320 1555 1555 2.95 LINK K K A 104 O HOH A 404 1555 1555 3.49 LINK K K A 105 O HOH A 225 1555 1555 3.25 SITE 1 AC1 1 A A 10 SITE 1 AC2 2 A A 16 HOH A 320 SITE 1 AC3 1 U A 31 SITE 1 AC4 1 U A 21 SITE 1 AC5 1 U A 20 CRYST1 42.890 42.890 266.936 90.00 90.00 120.00 H 3 2 18 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 0.023315 0.013461 0.000000 0.00000 SCALE2 0.000000 0.026922 0.000000 0.00000 SCALE3 0.000000 0.000000 0.003746 0.00000