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PLoS One. 2012;7(1):e30003. doi: 10.1371/journal.pone.0030003. Epub 2012 Jan 19.

Accumulation of endogenous LITAF in aggresomes.

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  • 1Department of Biology, Trent University, Peterborough, Ontario, Canada.

Abstract

LITAF is a 161 amino acid cellular protein which includes a proline rich N-terminus and a conserved C-terminal domain known as the simple-like domain. Mutations in LITAF have been identified in Charcot-Marie tooth disease, a disease characterized by protein aggregates. Cells transfected with cellular LITAF reveal that LITAF is localized to late endosomes/lysosomes. Here we investigated the intracellular localization of endogenous LITAF. We demonstrated that endogenous LITAF accumulates at a discrete cytoplasmic site in BGMK cells that we identify as the aggresome. To determine the domain within LITAF that is responsible for the localization of LITAF to aggresomes, we created a construct that contained the C-terminal simple-like domain of LITAF and found that this construct also localizes to aggresomes. These data suggest the simple-like domain is responsible for targeting endogenous LITAF to the aggresome.

PMID:
22276139
[PubMed - indexed for MEDLINE]
PMCID:
PMC3261850
Free PMC Article
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