ISDA

Deposition Date 2011-10-30

Release Date 2012-05-23

Last Version Date 2024-02-28

Entry Detail

PDB ID:

3UEL

Keywords:

HYDROLASE

Title:

Crystal structure of the catalytic domain of rat poly (ADP-ribose) glycohydrolase bound to ADP-HPD

Biological Source:

Source Organism:

Rattus norvegicus (Taxon ID: 10116)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

3.00 Å

R-Value Free:

0.27

R-Value Work:

0.24

R-Value Observed:

0.24

Space Group:

C 2 2 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Poly(ADP-ribose) glycohydrolase
Gene (Uniprot):Parg
Chain IDs:A, B, C
Chain Length:588
Number of Molecules:3
Biological Source:Rattus norvegicus

UniProt ID:Q9QYM2 Pfam ID:PF20811, PF05028 EC:3.2.1.143

Ligand Molecules

A1R

Primary Citation

Structure of mammalian poly(ADP-ribose) glycohydrolase reveals a flexible tyrosine clasp as a substrate-binding element.

Kim, I.K, Kiefer, J.R, Ho, C.M, Stegeman, R.A, Classen, S, Tainer, J.A, Ellenberger, T.Show

Nat.Struct.Mol.Biol. 19 653 656 (2012)

PMID: 22609859 DOI: 10.1038/nsmb.2305

Abstact

Reversible post-translational modification by poly(ADP-ribose) (PAR) regulates chromatin structure, DNA repair and cell fate in response to genotoxic stress. PAR glycohydrolase (PARG) removes PAR chains from poly ADP-ribosylated proteins to restore protein function and release oligo(ADP-ribose) chains to signal damage. Here we report crystal structures of mammalian PARG and its complex with a substrate mimic that reveal an open substrate-binding site and a unique 'tyrosine clasp' enabling endoglycosidic cleavage of branched PAR chains.

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Primary Citation of related structures