4J8S

Crystal structure of human CNOT1 MIF4G domain in complex with a TTP peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.167 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for the recruitment of the human CCR4-NOT deadenylase complex by tristetraprolin.

Fabian, M.R.Frank, F.Rouya, C.Siddiqui, N.Lai, W.S.Karetnikov, A.Blackshear, P.J.Nagar, B.Sonenberg, N.

(2013) Nat.Struct.Mol.Biol. 20: 735-739

  • DOI: 10.1038/nsmb.2572

  • PubMed Abstract: 
  • Tristetraprolin (TTP) is an RNA-binding protein that controls the inflammatory response by limiting the expression of several proinflammatory cytokines. TTP post-transcriptionally represses gene expression by interacting with AU-rich elements (AREs) ...

    Tristetraprolin (TTP) is an RNA-binding protein that controls the inflammatory response by limiting the expression of several proinflammatory cytokines. TTP post-transcriptionally represses gene expression by interacting with AU-rich elements (AREs) in 3' untranslated regions of target mRNAs and subsequently engenders their deadenylation and decay. TTP accomplishes these tasks, at least in part, by recruiting the multisubunit CCR4-NOT deadenylase complex to the mRNA. Here we identify an evolutionarily conserved C-terminal motif in human TTP that directly binds a central domain of CNOT1, a core subunit of the CCR4-NOT complex. A high-resolution crystal structure of the TTP-CNOT1 complex was determined, providing the first structural insight, to our knowledge, into an ARE-binding protein bound to the CCR4-NOT complex. Mutations at the CNOT1-TTP interface impair TTP-mediated deadenylation, demonstrating the significance of this interaction in TTP-mediated gene silencing.


    Organizational Affiliation

    Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, Québec, Canada. marc.fabian@mcgill.ca




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CCR4-NOT transcription complex subunit 1
A
203Homo sapiensGene Names: CNOT1 (CDC39, KIAA1007, NOT1)
Find proteins for A5YKK6 (Homo sapiens)
Go to Gene View: CNOT1
Go to UniProtKB:  A5YKK6
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Tristetraprolin
B
15Homo sapiensGene Names: ZFP36 (G0S24, RNF162A, TIS11A, TTP)
Find proteins for P26651 (Homo sapiens)
Go to Gene View: ZFP36
Go to UniProtKB:  P26651
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.167 
  • Space Group: P 21 3
Unit Cell:
Length (Å)Angle (°)
a = 85.060α = 90.00
b = 85.060β = 90.00
c = 85.060γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
SHELXSphasing
HKL-2000data scaling
HKL-2000data collection
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-05-08
    Type: Initial release
  • Version 1.1: 2013-07-24
    Type: Database references
  • Version 1.2: 2016-05-25
    Type: Structure summary