1WTT

HELIX 45 (16S RRNA) FROM B. STEAROTHERMOPHILUS, NMR, 11 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 11 
  • Selection Criteria: NO RESTRAINT VIOLATION 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of a methylated tetraloop in 16S ribosomal RNA.

Rife, J.P.Moore, P.B.

(1998) Structure 6: 747-756

  • Primary Citation of Related Structures:  1WTS

  • PubMed Abstract: 
  • Ribosomal RNAs contain many modified nucleotides. The functions of these nucleotides are poorly understood and few of them are strongly conserved. The final stem loop in 16S-like rRNAs is an exception in both regards. In both prokaryotes and eukaryot ...

    Ribosomal RNAs contain many modified nucleotides. The functions of these nucleotides are poorly understood and few of them are strongly conserved. The final stem loop in 16S-like rRNAs is an exception in both regards. In both prokaryotes and eukaryotes, the tetranucleotide loop that caps the 3'-terminal stem contains two N6, N6-dimethyladenosine residues. The sequence and pattern of methylation are conserved within the loop, and there is evidence that these methylated nucleotides play an important role in subunit association and the initiation of protein synthesis. Because of the integral role that helix 45 plays in ribosome function, it is important to know what consequences these methylated nucleotides have on its structure.


    Organizational Affiliation

    Department of Chemistry, Yale University New Haven, CT 06520, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsLengthOrganism
RNA (5'-R(*GP*GP*AP*CP*CP*2MGP*GP*MA6P*MA6P*GP*GP*UP*CP*C)-3')A14N/A
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
MA6
Query on MA6
A
RNA LINKINGC12 H18 N5 O7 PA
2MG
Query on 2MG
A
RNA LINKINGC11 H16 N5 O8 PG
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 11 
  • Selection Criteria: NO RESTRAINT VIOLATION 
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-01-27
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance