3V2B image
Entry Detail
PDB ID:
3V2B
Keywords:
Title:
Human poly(adp-ribose) polymerase 15 (ARTD7, BAL3), macro domain 2 in complex with adenosine-5-diphosphoribose
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2011-12-12
Release Date:
2011-12-21
Method Details:
Experimental Method:
Resolution:
2.20 Å
R-Value Free:
0.23
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
C 2 2 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Poly [ADP-ribose] polymerase 15
Chain IDs:A
Chain Length:199
Number of Molecules:1
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
Recognition of Mono-ADP-Ribosylated ARTD10 Substrates by ARTD8 Macrodomains.
Structure 21 462 475 (2013)
PMID: 23473667 DOI: 10.1016/j.str.2012.12.019

Abstact

ADP-ribosyltransferases (ARTs) catalyze the transfer of ADP-ribose from NAD(+) onto substrates. Some ARTs generate in an iterative process ADP-ribose polymers that serve as adaptors for distinct protein domains. Other ARTs, exemplified by ARTD10, function as mono-ADP-ribosyltransferases, but it has been unclear whether this modification occurs in cells and how it is read. We observed that ARTD10 colocalized with ARTD8 and defined its macrodomains 2 and 3 as readers of mono-ADP-ribosylation both in vitro and in cells. The crystal structures of these two ARTD8 macrodomains and isothermal titration calorimetry confirmed their interaction with ADP-ribose. These macrodomains recognized mono-ADP-ribosylated ARTD10, but not poly-ADP-ribosylated ARTD1. This distinguished them from the macrodomain of macroH2A1.1, which interacted with poly- but not mono-ADP-ribosylated substrates. Moreover, Ran, an ARTD10 substrate, was also read by ARTD8 macrodomains. This identifies readers of mono-ADP-ribosylated proteins, defines their structures, and demonstrates the presence of this modification in cells.

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Primary Citation of related structures