Rulten, Stuart L, Rotheray, Amy, Green, Ryan L, Grundy, Gabrielle J, Moore, Duncan A Q, Gómez-Herreros, Fernando, Hafezparast, Majid and Caldecott, Keith W (2014) PARP-1 dependent recruitment of the amyotrophic lateral sclerosis-associated protein FUS/TLS to sites of oxidative DNA damage. Nucleic Acids Research, 42 (1). pp. 307-314. ISSN 1362-4962

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Abstract

Amyotrophic lateral sclerosis (ALS) is associated with progressive degeneration of motor neurons. Several of the genes associated with this disease encode proteins involved in RNA processing, including fused-in-sarcoma/translocated-in-sarcoma (FUS/TLS). FUS is a member of the heterogeneous nuclear ribonucleoprotein (hnRNP) family of proteins that bind thousands of pre-mRNAs and can regulate their splicing. Here, we have examined the possibility that FUS is also a component of the cellular response to DNA damage. We show that both GFP-tagged and endogenous FUS re-localize to sites of oxidative DNA damage induced by UVA laser, and that FUS recruitment is greatly reduced or ablated by an inhibitor of poly (ADP-ribose) polymerase activity. Consistent with this, we show that recombinant FUS binds directly to poly (ADP-ribose) in vitro, and that both GFP-tagged and endogenous FUS fail to accumulate at sites of UVA laser induced damage in cells lacking poly (ADP-ribose) polymerase-1. Finally, we show that GFP-FUS(R521G), harbouring a mutation that is associated with ALS, exhibits reduced ability to accumulate at sites of UVA laser-induced DNA damage. Together, these data suggest that FUS is a component of the cellular response to DNA damage, and that defects in this response may contribute to ALS.

Item Type:	Article
Schools and Departments:	School of Life Sciences > Neuroscience
Subjects:	Q Science > Q Science (General)
Depositing User:	Majid Hafezparast
Date Deposited:	14 Nov 2013 12:57
Last Modified:	01 Mar 2021 09:51
URI:	http://sro.sussex.ac.uk/id/eprint/47026

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