4PSI

PIH1D1/phospho-Tel2 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.240 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Phosphorylation-Dependent PIH1D1 Interactions Define Substrate Specificity of the R2TP Cochaperone Complex.

Horejsi, Z.Stach, L.Flower, T.G.Joshi, D.Flynn, H.Skehel, J.M.O'Reilly, N.J.Ogrodowicz, R.W.Smerdon, S.J.Boulton, S.J.

(2014) Cell Rep 7: 19-26

  • DOI: 10.1016/j.celrep.2014.03.013
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The R2TP cochaperone complex plays a critical role in the assembly of multisubunit machines, including small nucleolar ribonucleoproteins (snoRNPs), RNA polymerase II, and the mTORC1 and SMG1 kinase complexes, but the molecular basis of substrate rec ...

    The R2TP cochaperone complex plays a critical role in the assembly of multisubunit machines, including small nucleolar ribonucleoproteins (snoRNPs), RNA polymerase II, and the mTORC1 and SMG1 kinase complexes, but the molecular basis of substrate recognition remains unclear. Here, we describe a phosphopeptide binding domain (PIH-N) in the PIH1D1 subunit of the R2TP complex that preferentially binds to highly acidic phosphorylated proteins. A cocrystal structure of a PIH-N domain/TEL2 phosphopeptide complex reveals a highly specific phosphopeptide recognition mechanism in which Lys57 and 64 in PIH1D1, along with a conserved DpSDD phosphopeptide motif within TEL2, are essential and sufficient for binding. Proteomic analysis of PIH1D1 interactors identified R2TP complex substrates that are recruited by the PIH-N domain in a sequence-specific and phosphorylation-dependent manner suggestive of a common mechanism of substrate recognition. We propose that protein complexes assembled by the R2TP complex are defined by phosphorylation of a specific motif and recognition by the PIH1D1 subunit.


    Organizational Affiliation

    DNA Damage Response Laboratory, London Research Institute, Clare Hall, South Mimms EN6 3LD, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PIH1 domain-containing protein 1
A, B
138Homo sapiensMutation(s): 0 
Gene Names: PIH1D1 (NOP17)
Find proteins for Q9NWS0 (Homo sapiens)
Go to Gene View: PIH1D1
Go to UniProtKB:  Q9NWS0
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Telomere length regulation protein TEL2 homolog
D, E
11Homo sapiensMutation(s): 0 
Gene Names: TELO2 (KIAA0683)
Find proteins for Q9Y4R8 (Homo sapiens)
Go to Gene View: TELO2
Go to UniProtKB:  Q9Y4R8
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
D, E
L-PEPTIDE LINKINGC3 H8 N O6 PSER
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.240 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 49.600α = 90.00
b = 81.840β = 90.00
c = 83.990γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-04-23
    Type: Initial release