6DZE

Solution structure of Rbfox2 RRM mimetic peptide CPfox7


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 1.0 of the entry. See complete history


Literature

A Small Cyclic beta-Hairpin Peptide Mimics the Rbfox2 RNA Recognition Motif and Binds to the Precursor miRNA 20b.

Sun, Y.T.Shortridge, M.D.Varani, G.

(2019) Chembiochem 20: 931-939

  • DOI: 10.1002/cbic.201800645
  • Primary Citation of Related Structures:  
    6DZE, 6DZA, 6DZC, 6DZB, 6DZ9

  • PubMed Abstract: 
  • The RNA recognition motif (RRM), which is the most abundant RNA-binding motif in eukaryotes, is a well-structured domain of about 90 amino acids, yet the β2β3 hairpin, corresponding to strands 2 and 3 of the β-sheet, and the intervening loop make essential interactions with RNA in many RRM complexes ...

    The RNA recognition motif (RRM), which is the most abundant RNA-binding motif in eukaryotes, is a well-structured domain of about 90 amino acids, yet the β2β3 hairpin, corresponding to strands 2 and 3 of the β-sheet, and the intervening loop make essential interactions with RNA in many RRM complexes. A series of small cyclic peptide mimics of the β2β3 hairpin of Rbfox2 protein that recognize the terminal loop of precursor miR-20b have been designed to investigate whether the full RNA-binding protein can be mimicked with a minimal structurally preorganized peptide. Within a small library of seven cyclic peptides, a peptide with low-micromolar affinity for the miR-20b precursor was found. NMR spectroscopy titration data suggest that this peptide specifically targets the apical loop of pre-miR-20b. This work shows that it is possible to mimic RNA-binding proteins with designed stable peptides, which provide a starting point for designing or evolving small peptide mimetics of RRM proteins.


    Organizational Affiliation

    Department of Chemistry, University of Washington, 4000 15th Ave NE, Bagley Hall, Seattle, WA, 98195-1700, USA.



Macromolecules
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CPfox7A16Aspergillus fischeriMutation(s): 0 
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: 6DZE Olderado

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2018-07-03 
  • Released Date: 2019-05-15 
  • Deposition Author(s): Sun, Y.-T., Varani, G.

Revision History  (Full details and data files)

  • Version 1.0: 2019-05-15
    Type: Initial release