HEADER RNA 10-OCT-01 1K5I TITLE NMR STRUCTURE OF A RIBOSOMAL RNA HAIRPIN CONTAINING A CONSERVED CUCAA TITLE 2 PENTALOOP COMPND MOL_ID: 1; COMPND 2 MOLECULE: 5'-R(P*GP*GP*AP*CP*CP*CP*GP*GP*GP*CP*UP*CP*AP*AP*CP*CP*UP*G COMPND 3 P*GP*GP*UP*CP*C)-3'; COMPND 4 CHAIN: A; COMPND 5 FRAGMENT: 16S RIBOSOMAL RNA FRAGMENT (612-628); COMPND 6 ENGINEERED: YES; COMPND 7 OTHER_DETAILS: CUCAA PENTALOOP SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: THE OLIGONUCLEOTIDE WAS SYNTHESIZED BY T7 RUN-OFF SOURCE 4 TRANSCRIPTION. KEYWDS CUCAA PENTALOOP, RNA HAIRPIN, NON STANDARD BASE-BASE INTERACTION, RNA EXPDTA SOLUTION NMR NUMMDL 10 AUTHOR U.NAGASWAMY,X.GAO,S.A.MARTINIS,G.E.FOX REVDAT 5 22-MAY-24 1K5I 1 REMARK REVDAT 4 23-FEB-22 1K5I 1 REMARK REVDAT 3 24-FEB-09 1K5I 1 VERSN REVDAT 2 09-JAN-02 1K5I 1 JRNL REMARK REVDAT 1 17-OCT-01 1K5I 0 JRNL AUTH U.NAGASWAMY,X.GAO,S.A.MARTINIS,G.E.FOX JRNL TITL NMR STRUCTURE OF A RIBOSOMAL RNA HAIRPIN CONTAINING A JRNL TITL 2 CONSERVED CUCAA PENTALOOP. JRNL REF NUCLEIC ACIDS RES. V. 29 5129 2001 JRNL REFN ISSN 0305-1048 JRNL PMID 11812846 JRNL DOI 10.1093/NAR/29.24.5129 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: A TOTAL OF 300 STRUCTURES WERE REMARK 3 CALCULATED USING DISTANCE GEOMETRY UTILIZING 123 EXPERIMENTALLY REMARK 3 DERIVED DISTANCE RESTRAINTS FOR THE LOOP AND 918 (258- REMARK 3 EXPERIMENTAL DISTANCES, 660-A FORM DISTANCES) DISTANCE REMARK 3 RESTRAINTS FOR THE STEM REGION AND 143 DIHEDRAL ANGLE REMARK 3 RESTRAINTS. ADDITIONALLY, 50 DISTANCE RESTRAINTS WERE USED TO REMARK 3 MAINTAIN THE WATSON-CRICK GEOMETRY OF THE BASE PAIRS IN THE STEM REMARK 3 REGION. FINAL REFINEMENT RESULTED IN 10 LOWEST ENERGY STRUCTURES. REMARK 4 REMARK 4 1K5I COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-OCT-01. REMARK 100 THE DEPOSITION ID IS D_1000014585. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298 REMARK 210 PH : 6.5 REMARK 210 IONIC STRENGTH : 10 MM SODIUM PHOSPHATE REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 0.8 MM RNA; 10 MM SODIUM REMARK 210 PHOSPHATE; 0.1 MM EDTA; PH 6.5; REMARK 210 10 MM SODIUM PHOSPHATE; 0.1 MM REMARK 210 EDTA; PH 6.5 REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY; DQF-COSY; 1H-31P REMARK 210 HETCOR; COSY-35; TOCSY REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ REMARK 210 SPECTROMETER MODEL : AMX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : NULL REMARK 210 METHOD USED : DISTANCE GEOMETRY, SIMULATED REMARK 210 ANNEALING, RESTRAINED MOLECULAR REMARK 210 DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 33 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 10 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL REMARK 210 REMARK 210 REMARK: NULL REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. 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 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 DBREF 1K5I A 1 23 PDB 1K5I 1K5I 1 23 SEQRES 1 A 23 G G A C C C G G G C U C A SEQRES 2 A 23 A C C U G G G U C C CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 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 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 MODEL 1