3NNA

Crystal Structure of CUGBP1 RRM1/2-RNA Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.899 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.207 

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:  3NMR, 3NNC, 3NNH

  • 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 c ...

    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: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CUGBP Elav-like family member 1
A
175Homo sapiensGene Names: CELF1 (BRUNOL2, CUGBP, CUGBP1, NAB50)
Find proteins for Q92879 (Homo sapiens)
Go to Gene View: CELF1
Go to UniProtKB:  Q92879
Entity ID: 2
MoleculeChainsLengthOrganism
RNA (5'-R(*GP*UP*UP*GP*UP*UP*UP*UP*GP*UP*UP*U)-3')B12Homo sapiens
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.899 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.207 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 47.367α = 90.00
b = 70.061β = 90.00
c = 131.706γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
CBASSdata collection
SHARPphasing
REFMACrefinement
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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