4XR7

Structure of the Saccharomyces cerevisiae PAN2-PAN3 core complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.796 Å
  • R-Value Free: 0.299 
  • R-Value Work: 0.285 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The structure of the Pan2-Pan3 core complex reveals cross-talk between deadenylase and pseudokinase.

Schafer, I.B.Rode, M.Bonneau, F.Schussler, S.Conti, E.

(2014) Nat. Struct. Mol. Biol. 21: 591-598

  • DOI: 10.1038/nsmb.2834
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Pan2-Pan3 is a conserved complex involved in the shortening of mRNA poly(A) tails, the initial step in eukaryotic mRNA turnover. We show that recombinant Saccharomyces cerevisiae Pan2-Pan3 can deadenylate RNAs in vitro without needing the poly(A)-bin ...

    Pan2-Pan3 is a conserved complex involved in the shortening of mRNA poly(A) tails, the initial step in eukaryotic mRNA turnover. We show that recombinant Saccharomyces cerevisiae Pan2-Pan3 can deadenylate RNAs in vitro without needing the poly(A)-binding protein Pab1. The crystal structure of an active ~200-kDa core complex reveals that Pan2 and Pan3 interact with an unusual 1:2 stoichiometry imparted by the asymmetric nature of the Pan3 homodimer. An extended region of Pan2 wraps around Pan3 and provides a major anchoring point for complex assembly. A Pan2 module formed by the pseudoubiquitin-hydrolase and RNase domains latches onto the Pan3 pseudokinase with intertwined interactions that orient the deadenylase active site toward the A-binding site of the interacting Pan3. The molecular architecture of Pan2-Pan3 suggests how the nuclease and its pseudokinase regulator act in synergy to promote deadenylation.


    Organizational Affiliation

    Structural Cell Biology Department, Max Planck Institute of Biochemistry, Martinsried, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PAB-dependent poly(A)-specific ribonuclease subunit PAN2
G, D, J, A
776Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PAN2
EC: 3.1.13.4
Find proteins for P53010 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: PAN2
Go to UniProtKB:  P53010
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PAB-dependent poly(A)-specific ribonuclease subunit PAN3
L, K, E, F, H, I, C, B
465Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PAN3 (ECM35)
Find proteins for P36102 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: PAN3
Go to UniProtKB:  P36102
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.796 Å
  • R-Value Free: 0.299 
  • R-Value Work: 0.285 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 131.443α = 90.00
b = 205.298β = 94.10
c = 234.410γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
PHENIXphasing
Aimlessdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Research CouncilGermany294371
DFGGermanySFB646
DFGGermanySFB1035
DFGGermanyGRK1721
DFGGermanyFOR1680
DFGGermanyCIPSM

Revision History 

  • Version 1.0: 2015-01-28
    Type: Initial release