Autophagy-independent incorporation of GFP-LC3 into protein aggregates is dependent on its interaction with p62/SQSTM1.

Abstract:

:LC3 is a widely used marker of autophagosomes in mammalian cells. However, in addition to its autophagosomal localization, GFP-LC3 is often found associated with protein aggregates that are formed in an autophagy-independent manner. In addition, LC3 directly interacts with p62/SQSTM1 (hereafter named p62), a common constituent of protein aggregates. In our recent report, we mapped the regions in LC3 involved in its binding to p62 and showed that this binding is essential for the incorporation of p62 into autophagosomes. Here we demonstrate that the autophagy-unrelated association of GFP-LC3 with protein aggregates is dependent on its interaction with p62.

journal_name

Autophagy

journal_title

Autophagy

authors

Shvets E,Elazar Z

doi

10.4161/auto.6823

subject

Has Abstract

pub_date

2008-11-01 00:00:00

pages

1054-6

issue

8

eissn

1554-8627

issn

1554-8635

pii

6823

journal_volume

4

pub_type

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