3NNC

Crystal Structure of CUGBP1 RRM1/2-RNA Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.198 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural Insights into RNA Recognition by the Alternate-Splicing Regulator CUG-Binding Protein 1.

Teplova, M.Song, J.Gaw, H.Y.Teplov, A.Patel, D.J.

(2010) Structure 18: 1364-1377

  • DOI: 10.1016/j.str.2010.06.018
  • Primary Citation of Related Structures:  
    3NNC, 3NNH, 3NNA, 3NMR

  • PubMed Abstract: 
  • CUG-binding protein 1 (CUGBP1) regulates multiple aspects of nuclear and cytoplasmic mRNA processing, with implications for onset of myotonic dystrophy. CUGBP1 harbors three RRM domains and preferentially targets UGU-rich mRNA elements. We describe crystal structures of CUGBP1 RRM1 and tandem RRM1/2 domains bound to RNAs containing tandem UGU(U/G) elements ...

    CUG-binding protein 1 (CUGBP1) regulates multiple aspects of nuclear and cytoplasmic mRNA processing, with implications for onset of myotonic dystrophy. CUGBP1 harbors three RRM domains and preferentially targets UGU-rich mRNA elements. We describe crystal structures of CUGBP1 RRM1 and tandem RRM1/2 domains bound to RNAs containing tandem UGU(U/G) elements. Both RRM1 in RRM1-RNA and RRM2 in RRM1/2-RNA complexes use similar principles to target UGU(U/G) elements, with recognition mediated by face-to-edge stacking and water-mediated hydrogen-bonding networks. The UG step adopts a left-handed Z-RNA conformation, with the syn guanine recognized through Hoogsteen edge-protein backbone hydrogen-bonding interactions. NMR studies on the RRM1/2-RNA complex establish that both RRM domains target tandem UGUU motifs in solution, whereas filter-binding assays identify a preference for recognition of GU over AU or GC steps. We discuss the implications of CUGBP1-mediated targeting and sequestration of UGU(U/G) elements on pre-mRNA alternative-splicing regulation, translational regulation, and mRNA decay.


    Organizational Affiliation

    Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CUGBP Elav-like family member 1A175Homo sapiensMutation(s): 0 
Gene Names: BRUNOL2CELF1CUGBPCUGBP1CUGPB1NAB50
Find proteins for Q92879 (Homo sapiens)
Explore Q92879 
Go to UniProtKB:  Q92879
NIH Common Fund Data Resources
PHAROS:  Q92879
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 2
    MoleculeChainsLengthOrganismImage
    RNA (5'-R(*UP*GP*UP*GP*UP*GP*UP*UP*GP*UP*GP*UP*G)-3')B13Homo sapiens
    Experimental Data & Validation

    Experimental Data

    • Method: X-RAY DIFFRACTION
    • Resolution: 2.20 Å
    • R-Value Free: 0.256 
    • R-Value Work: 0.195 
    • R-Value Observed: 0.198 
    • Space Group: I 2 2 2
    Unit Cell:
    Length ( Å )Angle ( ˚ )
    a = 47.713α = 90
    b = 70.039β = 90
    c = 132.548γ = 90
    Software Package:
    Software NamePurpose
    ADSCdata collection
    MOLREPphasing
    PHENIXrefinement
    HKL-2000data reduction
    HKL-2000data scaling

    Structure Validation

    View Full Validation Report



    Entry History 

    Deposition Data

    Revision History  (Full details and data files)

    • Version 1.0: 2010-10-27
      Type: Initial release
    • Version 1.1: 2011-07-13
      Changes: Version format compliance
    • Version 1.2: 2014-10-08
      Changes: Structure summary