6B3X

Crystal structure of CstF-50 in complex with CstF-77


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Reconstitution of the CstF complex unveils a regulatory role for CstF-50 in recognition of 3'-end processing signals.

Yang, W.Hsu, P.L.Yang, F.Song, J.E.Varani, G.

(2018) Nucleic Acids Res. 46: 493-503

  • DOI: 10.1093/nar/gkx1177

  • PubMed Abstract: 
  • Cleavage stimulation factor (CstF) is a highly conserved protein complex composed of three subunits that recognizes G/U-rich sequences downstream of the polyadenylation signal of eukaryotic mRNAs. While CstF has been identified over 25 years ago, the ...

    Cleavage stimulation factor (CstF) is a highly conserved protein complex composed of three subunits that recognizes G/U-rich sequences downstream of the polyadenylation signal of eukaryotic mRNAs. While CstF has been identified over 25 years ago, the architecture and contribution of each subunit to RNA recognition have not been fully understood. In this study, we provide a structural basis for the recruitment of CstF-50 to CstF via interaction with CstF-77 and establish that the hexameric assembly of CstF creates a high affinity platform to target various G/U-rich sequences. We further demonstrate that CstF-77 boosts the affinity of the CstF-64 RRM to the RNA targets and CstF-50 fine tunes the ability of the complex to recognize G/U sequences of certain lengths and content.


    Organizational Affiliation

    Department of Chemistry, University of Washington, Seattle, WA 98195-1700, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cleavage stimulation factor subunit 1
A
358Homo sapiensMutation(s): 0 
Gene Names: CSTF1
Find proteins for Q05048 (Homo sapiens)
Go to Gene View: CSTF1
Go to UniProtKB:  Q05048
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Cleavage stimulation factor subunit 3
B
20Homo sapiensMutation(s): 0 
Gene Names: CSTF3
Find proteins for Q12996 (Homo sapiens)
Go to Gene View: CSTF3
Go to UniProtKB:  Q12996
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.214 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 43.863α = 90.00
b = 74.491β = 90.00
c = 95.105γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
MR-Rosettaphasing
HKL-2000data scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM064440

Revision History 

  • Version 1.0: 2017-11-29
    Type: Initial release
  • Version 1.1: 2017-12-06
    Type: Author supporting evidence
  • Version 1.2: 2017-12-13
    Type: Database references
  • Version 1.3: 2018-02-07
    Type: Database references