Canonical poly(ADP-ribose) glycohydrolase from Tetrahymena thermophila.Canonical poly(ADP-ribose) glycohydrolase from Tetrahymena thermophila.

Structural highlights

4epp is a 2 chain structure with sequence from Tetth. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Publication Abstract from PubMed

Poly(ADP-ribosyl)ation is a reversible post-translational protein modification involved in the regulation of a number of cellular processes including DNA repair, chromatin structure, mitosis, transcription, checkpoint activation, apoptosis and asexual development. The reversion of poly(ADP-ribosyl)ation is catalysed by poly(ADP-ribose) (PAR) glycohydrolase (PARG), which specifically targets the unique PAR (1-2') ribose-ribose bonds. Here we report the structure and mechanism of the first canonical PARG from the protozoan Tetrahymena thermophila. In addition, we reveal the structure of T. thermophila PARG in a complex with a novel rhodanine-containing mammalian PARG inhibitor RBPI-3. Our data demonstrate that the protozoan PARG represents a good model for human PARG and is therefore likely to prove useful in guiding structure-based discovery of new classes of PARG inhibitors.

Structure and mechanism of a canonical poly(ADP-ribose) glycohydrolase.,Dunstan MS, Barkauskaite E, Lafite P, Knezevic CE, Brassington A, Ahel M, Hergenrother PJ, Leys D, Ahel I Nat Commun. 2012 Jun 6;3:878. doi: 10.1038/ncomms1889. PMID:22673905[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Dunstan MS, Barkauskaite E, Lafite P, Knezevic CE, Brassington A, Ahel M, Hergenrother PJ, Leys D, Ahel I. Structure and mechanism of a canonical poly(ADP-ribose) glycohydrolase. Nat Commun. 2012 Jun 6;3:878. doi: 10.1038/ncomms1889. PMID:22673905 doi:10.1038/ncomms1889

4epp, resolution 1.95Å

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