Amot recognizes a juxtanuclear endocytic recycling compartment via a novel lipid binding domain.

ABSTRACT: Polarity proteins promote the asymmetric organization of cells by orienting intracellular sorting mechanisms, such as protein trafficking and cytoskeletal assembly. The localization of individual polarity proteins in turn is often determined by association with factors that mediate contact with other cells or the substratum. This arrangement for the Par and Crb apical polarity complexes at the tight junction is disrupted by the adaptor protein Amot. Amot directly binds the scaffolding proteins Patj and Mupp1 and redistributes them and their binding partners from the plasma membrane to endosomes. However, the mechanism by which Amot is targeted to endosomes is unknown. Here, a novel lipid binding domain within Amot is shown to selectively bind with high affinity to membranes containing mono

SUBMITTER: Heller B 

PROVIDER: S-EPMC2852970 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature