2KUV

Solution Structure of K10 TLS RNA (GC mutant in lower helix)


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A'-form RNA helices are required for cytoplasmic mRNA transport in Drosophila.

Bullock, S.L.Ringel, I.Ish-Horowicz, D.Lukavsky, P.J.

(2010) Nat Struct Mol Biol 17: 703-709

  • DOI: 10.1038/nsmb.1813
  • Primary Citation of Related Structures:  
    2KE6, 2KUR, 2KUU, 2KUV, 2KUW

  • PubMed Abstract: 
  • Microtubule-based mRNA transport is widely used to restrict protein expression to specific regions in the cell and has important roles in defining cell polarity and axis determination as well as in neuronal function. However, the structural basis of recognition of cis-acting mRNA localization signals by motor complexes is poorly understood ...

    Microtubule-based mRNA transport is widely used to restrict protein expression to specific regions in the cell and has important roles in defining cell polarity and axis determination as well as in neuronal function. However, the structural basis of recognition of cis-acting mRNA localization signals by motor complexes is poorly understood. We have used NMR spectroscopy to describe the first tertiary structure to our knowledge of an RNA element responsible for mRNA transport. The Drosophila melanogaster fs(1)K10 signal, which mediates transport by the dynein motor, forms a stem loop with two double-stranded RNA helices adopting an unusual A'-form conformation with widened major grooves reminiscent of those in B-form DNA. Structure determination of four mutant RNAs and extensive functional assays in Drosophila embryos indicate that the two spatially registered A'-form helices represent critical recognition sites for the transport machinery. Our study provides insights into the basis for RNA cargo recognition and reveals a key biological function encoded by A'-form RNA conformation.


    Organizational Affiliation

    Division of Cell Biology, Medical Research Council Laboratory of Molecular Biology, Cambridge, UK.



Macromolecules
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Entity ID: 1
MoleculeChainsLengthOrganismImage
K10 TLS RNAA 48Drosophila melanogaster
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2KUV Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-05-19
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2022-03-16
    Changes: Data collection, Database references, Derived calculations