Structure of Rna15 RRM with RNA bound (G)

Experimental Data Snapshot

  • Resolution: 2.05 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.208 

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Structure of the RNA15 Rrm-RNA Complex Reveals the Molecular Basis of Gu Specificity in Transcriptional 3-End Processing Factors.

Pancevac, C.Goldstone, D.C.Ramos, A.Taylor, I.A.

(2010) Nucleic Acids Res 38: 3119

  • DOI: https://doi.org/10.1093/nar/gkq002
  • Primary Citation of Related Structures:  
    2X1A, 2X1B, 2X1F

  • PubMed Abstract: 

    Rna15 is a core subunit of cleavage factor IA (CFIA), an essential transcriptional 3'-end processing factor from Saccharomyces cerevisiae. CFIA is required for polyA site selection/cleavage targeting RNA sequences that surround polyadenylation sites in the 3'-UTR of RNA polymerase-II transcripts. RNA recognition by CFIA is mediated by an RNA recognition motif (RRM) contained in the Rna15 subunit of the complex. We show here that Rna15 has a strong and unexpected preference for GU containing RNAs and reveal the molecular basis for a base selectivity mechanism that accommodates G or U but discriminates against C and A bases. This mode of base selectivity is rather different to that observed in other RRM-RNA structures and is structurally conserved in CstF64, the mammalian counterpart of Rna15. Our observations provide evidence for a highly conserved mechanism of base recognition amongst the 3'-end processing complexes that interact with the U-rich or U/G-rich elements at 3'-end cleavage/polyadenylation sites.

  • Organizational Affiliation

    Division of Molecular Structure, MRC National Institute for Medical Research, The Ridgeway, Mill Hill, London NW7 1AA, UK.


Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
MRNA 3'-END-PROCESSING PROTEIN RNA1597Saccharomyces cerevisiaeMutation(s): 0 
Find proteins for P25299 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P25299 
Go to UniProtKB:  P25299
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP25299
Sequence Annotations
  • Reference Sequence

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Entity ID: 2
MoleculeChains LengthOrganismImage
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on MG

Download Ideal Coordinates CCD File 
Experimental Data & Validation

Experimental Data

  • Resolution: 2.05 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.208 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.037α = 90
b = 74.967β = 90
c = 31.508γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-02-02
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-05-08
    Changes: Data collection, Database references, Derived calculations, Other