4D0K

Complex of Chaetomium thermophilum PAN2 (WD40-CS1) with PAN3 (C-term)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

An Asymmetric Pan3 Dimer Recruits a Single Pan2 Exonuclease to Mediate Mrna Deadenylation and Decay.

Jonas, S.Christie, M.Peter, D.Bhandari, D.Loh, B.Huntzinger, E.Weichenrieder, O.Izaurralde, E.

(2014) Nat.Struct.Mol.Biol. 21: 599

  • DOI: 10.1038/nsmb.2837
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The PAN2-PAN3 complex functions in general and microRNA-mediated mRNA deadenylation. However, mechanistic insight into PAN2 and its complex with the asymmetric PAN3 dimer is lacking. Here, we describe crystal structures that show that Neurospora cras ...

    The PAN2-PAN3 complex functions in general and microRNA-mediated mRNA deadenylation. However, mechanistic insight into PAN2 and its complex with the asymmetric PAN3 dimer is lacking. Here, we describe crystal structures that show that Neurospora crassa PAN2 comprises two independent structural units: a C-terminal catalytic unit and an N-terminal assembly unit that engages in a bipartite interaction with PAN3 dimers. The catalytic unit contains the exonuclease domain in an intimate complex with a potentially modulatory ubiquitin-protease-like domain. The assembly unit contains a WD40 propeller connected to an adaptable linker. The propeller contacts the PAN3 C-terminal domain, whereas the linker reinforces the asymmetry of the PAN3 dimer and prevents the recruitment of a second PAN2 molecule. Functional data indicate an essential role for PAN3 in coordinating PAN2-mediated deadenylation with subsequent steps in mRNA decay, which lead to complete mRNA degradation.


    Organizational Affiliation

    1] Department of Biochemistry, Max Planck Institute for Developmental Biology, Tübingen, Germany. [2].




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
A-SPECIFIC RIBONUCLEASE SUBUNIT PAN2
A
460Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719)Mutation(s): 0 
Gene Names: PAN2
EC: 3.1.13.4
Find proteins for G0SAK8 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Go to Gene View: PAN2
Go to UniProtKB:  G0SAK8
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PAB-DEPENDENT POLY(A)-SPECIFIC RIBONUCLEASE SUBUNIT PAN3-LIKE PROTEIN
B, C
135Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719)Mutation(s): 0 
Gene Names: PAN3
Find proteins for G0S0Y3 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Go to Gene View: PAN3
Go to UniProtKB:  G0S0Y3
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.187 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 72.414α = 90.00
b = 93.568β = 90.00
c = 110.676γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
XDSdata reduction
XDSdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-06-04
    Type: Initial release
  • Version 1.1: 2014-06-11
    Type: Database references
  • Version 1.2: 2014-07-16
    Type: Database references