1P1T

NMR Structure of the N-terminal RRM domain of Cleavage stimulation factor 64 KDa subunit


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 20 
  • Selection Criteria: The submitted conformer models are the 20 structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Recognition of GU-rich polyadenylation regulatory elements by human CstF-64 protein

Perez-Canadillas, J.M.Varani, G.

(2003) EMBO J 22: 2821-2830

  • DOI: https://doi.org/10.1093/emboj/cdg259
  • Primary Citation of Related Structures:  
    1P1T

  • PubMed Abstract: 

    Vertebrate polyadenylation sites are identified by the AAUAAA signal and by GU-rich sequences downstream of the cleavage site. These are recognized by a heterotrimeric protein complex (CstF) through its 64 kDa subunit (CstF-64); the strength of this interaction affects the efficiency of poly(A) site utilization. We present the structure of the RNA-binding domain of CstF-64 containing an RNA recognition motif (RRM) augmented by N- and C-terminal helices. The C-terminal helix unfolds upon RNA binding and extends into the hinge domain where interactions with factors responsible for assembly of the polyadenylation complex occur. We propose that this conformational change initiates assembly. Consecutive Us are required for a strong CstF-GU interaction and we show how UU dinucleotides are recognized. Contacts outside the UU pocket fine tune the protein-RNA interaction and provide different affinities for distinct GU-rich elements. The protein-RNA interface remains mobile, most likely a requirement to bind many GU-rich sequences and yet discriminate against other RNAs. The structural distinction between sequences that form stable and unstable complexes provides an operational distinction between weakly and strongly processed poly(A) sites.


  • Organizational Affiliation

    MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, UK.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Cleavage stimulation factor, 64 kDa subunit104Homo sapiensMutation(s): 0 
Gene Names: CSTF2
UniProt & NIH Common Fund Data Resources
Find proteins for P33240 (Homo sapiens)
Explore P33240 
Go to UniProtKB:  P33240
PHAROS:  P33240
GTEx:  ENSG00000101811 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP33240
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 20 
  • Selection Criteria: The submitted conformer models are the 20 structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-08-12
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-23
    Changes: Data collection, Database references, Derived calculations
  • Version 1.4: 2024-05-22
    Changes: Data collection