5JHQ

ARCs 1-3 of human Tankyrase-1 bound to a peptide derived from IRAP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Tankyrase-1 Ankyrin Repeats Form an Adaptable Binding Platform for Targets of ADP-Ribose Modification.

Eisemann, T.McCauley, M.Langelier, M.F.Gupta, K.Roy, S.Van Duyne, G.D.Pascal, J.M.

(2016) Structure 24: 1679-1692

  • DOI: 10.1016/j.str.2016.07.014

  • PubMed Abstract: 
  • The poly(ADP-ribose) polymerase enzyme Tankyrase-1 (TNKS) regulates multiple cellular processes and interacts with diverse proteins using five ankyrin repeat clusters (ARCs). There are limited structural insights into functional roles of the multiple ...

    The poly(ADP-ribose) polymerase enzyme Tankyrase-1 (TNKS) regulates multiple cellular processes and interacts with diverse proteins using five ankyrin repeat clusters (ARCs). There are limited structural insights into functional roles of the multiple ARCs of TNKS. Here we present the ARC1-3 crystal structure and employ small-angle X-ray scattering (SAXS) to investigate solution conformations of the complete ankyrin repeat domain. Mutagenesis and binding studies using the bivalent TNKS binding domain of Axin1 demonstrate that only certain ARC combinations function together. The physical basis for these restrictions is explained by both rigid and flexible ankyrin repeat elements determined in our structural analysis. SAXS analysis is consistent with a dynamic ensemble of TNKS ankyrin repeat conformations modulated by Axin1 interaction. TNKS ankyrin repeat domain is thus an adaptable binding platform with structural features that can explain selectivity toward diverse proteins, and has implications for TNKS positioning of bound targets for poly(ADP-ribose) modification.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA.,Department of Biochemistry and Molecular Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QC H3T1J4, Canada. Electronic address: john.pascal@umontreal.ca.,Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Biochemistry and Molecular Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QC H3T1J4, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tankyrase-1
A, B, C, D
482Homo sapiensMutation(s): 0 
Gene Names: TNKS (PARP5A, PARPL, TIN1, TINF1, TNKS1)
EC: 2.4.2.30
Find proteins for O95271 (Homo sapiens)
Go to Gene View: TNKS
Go to UniProtKB:  O95271
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Peptide derived from insulin-responsive aminopeptidase (IRAP)
E, F, G, H, I, J, K, L
16Homo sapiensMutation(s): 0 
Gene Names: LNPEP (OTASE)
EC: 3.4.11.3
Find proteins for Q9UIQ6 (Homo sapiens)
Go to Gene View: LNPEP
Go to UniProtKB:  Q9UIQ6
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.214 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 94.510α = 90.00
b = 129.830β = 92.31
c = 123.950γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata scaling
PHASERphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM087282

Revision History 

  • Version 1.0: 2016-09-21
    Type: Initial release
  • Version 1.1: 2016-10-19
    Type: Database references
  • Version 1.2: 2017-09-27
    Type: Author supporting evidence, Database references, Derived calculations