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Structure of Human ADP-ribosyl-acceptor Hydrolase 3 Bound to ADP-ribose Reveals a Conformational Switch That Enables Specific Substrate Recognition

Overview
Journal J Biol Chem
Specialty Biochemistry
Date 2018 Jun 17
PMID 29907568
Citations 22
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Abstract

ADP-ribosyl-acceptor hydrolase 3 (ARH3) plays important roles in regulation of poly(ADP-ribosyl)ation, a reversible post-translational modification, and in maintenance of genomic integrity. ARH3 degrades poly(ADP-ribose) to protect cells from poly(ADP-ribose)-dependent cell death, reverses serine mono(ADP-ribosyl)ation, and hydrolyzes -acetyl-ADP-ribose, a product of Sirtuin-catalyzed histone deacetylation. ARH3 preferentially hydrolyzes -linkages attached to the anomeric C1″ of ADP-ribose; however, how ARH3 specifically recognizes and cleaves structurally diverse substrates remains unknown. Here, structures of full-length human ARH3 bound to ADP-ribose and Mg, coupled with computational modeling, reveal a dramatic conformational switch from closed to open states that enables specific substrate recognition. The glutamate flap, which blocks substrate entrance to Mg in the unliganded closed state, is ejected from the active site when substrate is bound. This closed-to-open transition significantly widens the substrate-binding channel and precisely positions the scissile 1″--linkage for cleavage while securing tightly 2″- and 3″-hydroxyls of ADP-ribose. Our collective data uncover an unprecedented structural plasticity of ARH3 that supports its specificity for the 1″--linkage in substrates and Mg-dependent catalysis.

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References
1.
Tucker J, Bennett N, Brassington C, Durant S, Hassall G, Holdgate G . Structures of the human poly (ADP-ribose) glycohydrolase catalytic domain confirm catalytic mechanism and explain inhibition by ADP-HPD derivatives. PLoS One. 2012; 7(12):e50889. PMC: 3519477. DOI: 10.1371/journal.pone.0050889. View

2.
Rosenthal F, Feijs K, Frugier E, Bonalli M, Forst A, Imhof R . Macrodomain-containing proteins are new mono-ADP-ribosylhydrolases. Nat Struct Mol Biol. 2013; 20(4):502-7. DOI: 10.1038/nsmb.2521. View

3.
Otwinowski Z, Minor W . Processing of X-ray diffraction data collected in oscillation mode. Methods Enzymol. 1997; 276:307-26. DOI: 10.1016/S0076-6879(97)76066-X. View

4.
Yu S, Andrabi S, Wang H, Kim N, Poirier G, Dawson T . Apoptosis-inducing factor mediates poly(ADP-ribose) (PAR) polymer-induced cell death. Proc Natl Acad Sci U S A. 2006; 103(48):18314-9. PMC: 1838748. DOI: 10.1073/pnas.0606528103. View

5.
Oka S, Kato J, Moss J . Identification and characterization of a mammalian 39-kDa poly(ADP-ribose) glycohydrolase. J Biol Chem. 2005; 281(2):705-13. DOI: 10.1074/jbc.M510290200. View