1AFX

UGAA EUKARYOTIC RIBOSOMAL RNA TETRALOOP, NMR, 13 STRUCTURES

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 13 
  • Selection Criteria: CLUSTER OF 13 STRUCTURES WITH COMMON FOLD 

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This is version 1.3 of the entry. See complete history. 


Literature

Solution structure of the loop B domain from the hairpin ribozyme.

Butcher, S.E., Allain, F.H., Feigon, J.

(1999) Nat Struct Biol 6: 212-216

  • DOI: 10.1038/6651
  • Primary Citation of Related Structures:  
    1AFX, 1B36

  • PubMed Abstract: 

    • The hairpin ribozyme is a small catalytic RNA with a unique two-domain structure. Here we present the solution structure of the loop B domain of the hairpin ribozyme, which contains most of the catalytically essential nucleotides. The 38-nucleotide domain contains a 16-nucleotide internal loop that forms one of the largest non-Watson-Crick segments of base pairing thus far determined by either NMR or crystallography ...

    The hairpin ribozyme is a small catalytic RNA with a unique two-domain structure. Here we present the solution structure of the loop B domain of the hairpin ribozyme, which contains most of the catalytically essential nucleotides. The 38-nucleotide domain contains a 16-nucleotide internal loop that forms one of the largest non-Watson-Crick segments of base pairing thus far determined by either NMR or crystallography. Since the solution structure of the smaller loop A domain has been previously solved, an NMR structure-based model of the 22,000 Mr hairpin ribozyme-substrate open complex emerges by joining the two domain structures. Strikingly, catalytically essential functional groups for the loop B domain are concentrated within an expanded minor groove, presenting a clear docking surface for the loop A domain.

    Organizational Affiliation: 

    Department of Chemistry and Biochemistry and Molecular Biology Institute, University of California, Los Angeles 90095-1569, USA.



Macromolecules

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Entity ID: 1
MoleculeChainsLengthOrganismImage
RNA (5'-R(*GP*GP*UP*GP*UP*GP*AP*AP*CP*AP*CP*C)-3')A 12N/A
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 13 
  • Selection Criteria: CLUSTER OF 13 STRUCTURES WITH COMMON FOLD 
  • OLDERADO: 1AFX Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-05-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-16
    Changes: Database references, Derived calculations, Other