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 
  • R-Value Observed: 0.188 

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:  
    4CZV, 4CZW, 4CZX, 4CZY, 4D0K

  • 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 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 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

    Department of Biochemistry, Max Planck Institute for Developmental Biology, Tübingen, Germany.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
A-SPECIFIC RIBONUCLEASE SUBUNIT PAN2A460Chaetomium thermophilumMutation(s): 0 
EC: 3.1.13.4
UniProt
Find proteins for G0SAK8 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0SAK8 
Go to UniProtKB:  G0SAK8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG0SAK8
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PAB-DEPENDENT POLY(A)-SPECIFIC RIBONUCLEASE SUBUNIT PAN3-LIKE PROTEINB, C135Chaetomium thermophilumMutation(s): 0 
UniProt
Find proteins for G0S0Y3 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0S0Y3 
Go to UniProtKB:  G0S0Y3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG0S0Y3
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.188 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.414α = 90
b = 93.568β = 90
c = 110.676γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

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