1BAU

NMR STRUCTURE OF THE DIMER INITIATION COMPLEX OF HIV-1 GENOMIC RNA, MINIMIZED AVERAGE STRUCTURE

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 34 
  • Conformers Submitted: 1 
  • Selection Criteria: LOWEST NMR CONSTRAINT VIOLATIONS AND LOWEST AMBER ENERGY. 

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


Literature

Structure of the dimer initiation complex of HIV-1 genomic RNA.

Mujeeb, A., Clever, J.L., Billeci, T.M., James, T.L., Parslow, T.G.

(1998) Nat Struct Biol 5: 432-436

  • DOI: 10.1038/nsb0698-432
  • Primary Citation of Related Structures:  
    1BAU

  • PubMed Abstract: 

    • Retroviral genomes must dimerize to be fully infectious. Dimerization is directed by a unique RNA hairpin structure with a palindrome in its loop: hairpins of two strands first associate transiently through their loops, and then refold to a more stable, linear duplex ...

    Retroviral genomes must dimerize to be fully infectious. Dimerization is directed by a unique RNA hairpin structure with a palindrome in its loop: hairpins of two strands first associate transiently through their loops, and then refold to a more stable, linear duplex. The structure of the initial, kissing-loop dimer from HIV-1, solved using 2D NMR, is bent and metastable, its interface being formed not only by standard basepairing between palindromes, but also by a distinctive pattern of interstrand stacking among bases at the stem-loop junctions. This creates mechanical distortions that partially melt both stems, which may facilitate spontaneous refolding of this RNA complex into linear form.

    Organizational Affiliation: 

    Department of Pathology, University of California at San Francisco, 94143, USA.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsLengthOrganismImage
SL1 RNA DIMERA, B 23N/A
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 34 
  • Conformers Submitted: 1 
  • Selection Criteria: LOWEST NMR CONSTRAINT VIOLATIONS AND LOWEST AMBER ENERGY. 
  • OLDERADO: 1BAU Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-04-27
    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: Data collection, Database references, Derived calculations, Other