3Q2T

Crystal Structure of CFIm68 RRM/CFIm25/RNA complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.06 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal Structure of a Human Cleavage Factor CFI(m)25/CFI(m)68/RNA Complex Provides an Insight into Poly(A) Site Recognition and RNA Looping.

Yang, Q.Coseno, M.Gilmartin, G.M.Doublie, S.

(2011) Structure 19: 368-377

  • DOI: 10.1016/j.str.2010.12.021
  • Primary Citation of Related Structures:  
    3Q2S, 3Q2T

  • PubMed Abstract: 
  • Cleavage factor I(m) (CFI(m)) is a highly conserved component of the eukaryotic mRNA 3' processing machinery that functions in sequence-specific poly(A) site recognition through the collaboration of a 25 kDa subunit containing a Nudix domain and a la ...

    Cleavage factor I(m) (CFI(m)) is a highly conserved component of the eukaryotic mRNA 3' processing machinery that functions in sequence-specific poly(A) site recognition through the collaboration of a 25 kDa subunit containing a Nudix domain and a larger subunit of 59, 68, or 72 kDa containing an RNA recognition motif (RRM). Our previous work demonstrated that CFI(m)25 is both necessary and sufficient for sequence-specific binding of the poly(A) site upstream element UGUA. Here, we report the crystal structure of CFI(m)25 complexed with the RRM domain of CFI(m)68 and RNA. The CFI(m)25 dimer is clasped on opposite sides by two CFI(m)68 RRM domains. Each CFI(m)25 subunit binds one UGUA element specifically. Biochemical analysis indicates that the CFI(m)68 RRMs serve to enhance RNA binding and facilitate RNA looping. The intrinsic ability of CFI(m) to direct RNA looping may provide a mechanism for its function in the regulation of alternative poly(A) site selection.


    Organizational Affiliation

    Department of Microbiology and Molecular Genetics, University of Vermont, Stafford Hall, Burlington, VT 05405, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cleavage and polyadenylation specificity factor subunit 5AB207Homo sapiensMutation(s): 0 
Gene Names: CFIM25CPSF25CPSF5NUDT21
Find proteins for O43809 (Homo sapiens)
Explore O43809 
Go to UniProtKB:  O43809
NIH Common Fund Data Resources
PHAROS  O43809
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Cleavage and polyadenylation specificity factor subunit 6CD229Homo sapiensMutation(s): 1 
Gene Names: CFIM68CPSF6
Find proteins for Q16630 (Homo sapiens)
Explore Q16630 
Go to UniProtKB:  Q16630
NIH Common Fund Data Resources
PHAROS  Q16630
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 3
    MoleculeChainsLengthOrganismImage
    RNAE, F5N/A
    Experimental Data & Validation

    Experimental Data

    • Method: X-RAY DIFFRACTION
    • Resolution: 3.06 Å
    • R-Value Free: 0.286 
    • R-Value Work: 0.211 
    • R-Value Observed: 0.214 
    • Space Group: P 21 3
    Unit Cell:
    Length ( Å )Angle ( ˚ )
    a = 138.406α = 90
    b = 138.406β = 90
    c = 138.406γ = 90
    Software Package:
    Software NamePurpose
    DENZOdata reduction
    SCALEPACKdata scaling
    MOLREPphasing
    PHENIXrefinement
    PDB_EXTRACTdata extraction
    MAR345data collection
    HKL-2000data reduction
    HKL-2000data scaling

    Structure Validation

    View Full Validation Report



    Entry History 

    Deposition Data

    Revision History 

    • Version 1.0: 2011-02-16
      Type: Initial release
    • Version 1.1: 2011-07-13
      Changes: Version format compliance
    • Version 1.2: 2017-11-08
      Changes: Advisory, Refinement description