2RF5

Crystal structure of human tankyrase 1- catalytic PARP domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Zinc binding catalytic domain of human tankyrase 1.

Lehtio, L.Collins, R.van den Berg, S.Johansson, A.Dahlgren, L.G.Hammarstrom, M.Helleday, T.Holmberg-Schiavone, L.Karlberg, T.Weigelt, J.

(2008) J.Mol.Biol. 379: 136-145

  • DOI: 10.1016/j.jmb.2008.03.058

  • PubMed Abstract: 
  • Tankyrases are recently discovered proteins implicated in many important functions in the cell including telomere homeostasis and mitosis. Tankyrase modulates the activity of target proteins through poly(ADP-ribosyl)ation, and here we report the stru ...

    Tankyrases are recently discovered proteins implicated in many important functions in the cell including telomere homeostasis and mitosis. Tankyrase modulates the activity of target proteins through poly(ADP-ribosyl)ation, and here we report the structure of the catalytic poly(ADP-ribose) polymerase (PARP) domain of human tankyrase 1. This is the first structure of a PARP domain from the tankyrase subfamily. The present structure reveals that tankyrases contain a short zinc-binding motif, which has not been predicted. Tankyrase activity contributes to telomere elongation observed in various cancer cells and tankyrase inhibition has been suggested as a potential route for cancer therapy. In comparison with other PARPs, significant structural differences are observed in the regions lining the substrate-binding site of tankyrase 1. These findings will be of great value to facilitate structure-based design of selective PARP inhibitors, in general, and tankyrase inhibitors, in particular.


    Organizational Affiliation

    Structural Genomics Consortium, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, S-17177 Stockholm, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tankyrase-1
A
258Homo sapiensMutation(s): 1 
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
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.193 
  • Space Group: I 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 79.950α = 90.00
b = 81.240β = 90.00
c = 82.720γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
XSCALEdata scaling
MOLREPphasing
XDSdata reduction
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2007-10-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance