Human PatL1 C-terminal domain (loop variant)

Experimental Data Snapshot

  • Resolution: 2.10 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.200 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


The C-Terminal Alpha-Alpha Superhelix of Pat is Required for Mrna Decapping in Metazoa.

Braun, J.E.Tritschler, F.Haas, G.Igreja, C.Truffault, V.Weichenrieder, O.Izaurralde, E.

(2010) EMBO J 29: 2368

  • DOI: https://doi.org/10.1038/emboj.2010.124
  • Primary Citation of Related Structures:  
    2XEQ, 2XER, 2XES

  • PubMed Abstract: 

    Pat proteins regulate the transition of mRNAs from a state that is translationally active to one that is repressed, committing targeted mRNAs to degradation. Pat proteins contain a conserved N-terminal sequence, a proline-rich region, a Mid domain and a C-terminal domain (Pat-C). We show that Pat-C is essential for the interaction with mRNA decapping factors (i.e. DCP2, EDC4 and LSm1-7), whereas the P-rich region and Mid domain have distinct functions in modulating these interactions. DCP2 and EDC4 binding is enhanced by the P-rich region and does not require LSm1-7. LSm1-7 binding is assisted by the Mid domain and is reduced by the P-rich region. Structural analysis revealed that Pat-C folds into an alpha-alpha superhelix, exposing conserved and basic residues on one side of the domain. This conserved and basic surface is required for RNA, DCP2, EDC4 and LSm1-7 binding. The multiplicity of interactions mediated by Pat-C suggests that certain of these interactions are mutually exclusive and, therefore, that Pat proteins switch decapping partners allowing transitions between sequential steps in the mRNA decapping pathway.

  • Organizational Affiliation

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

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
248Homo sapiensMutation(s): 1 
UniProt & NIH Common Fund Data Resources
Find proteins for Q86TB9 (Homo sapiens)
Explore Q86TB9 
Go to UniProtKB:  Q86TB9
GTEx:  ENSG00000166889 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ86TB9
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.10 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.200 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.65α = 90
b = 70.76β = 90
c = 134.04γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-06-16
    Type: Initial release
  • Version 1.1: 2011-05-12
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance