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Methods Enzymol. 2005;404:570-85.

Assays and functional properties of auxilin-dynamin interactions.

Author information

1
Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA.

Abstract

The large GTPase dynamin is required for budding of clathrin-coated vesicles from the plasma membrane, but its mechanism of action is still not understood. Growing evidence indicates that the GTP-bound form of dynamin recruits downstream partners that execute the fission reaction. Recently, we reported nucleotide-dependent interactions between dynamin and auxilin, which suggested that auxilin cooperates with dynamin during vesicle formation. Here we describe three different in vitro assays that monitor auxilin-dynamin interactions, as well as fluorescence lifetime imaging microscopy that identify direct interactions between dynamin and auxilin in cells.

PMID:
16413301
DOI:
10.1016/S0076-6879(05)04050-4
[Indexed for MEDLINE]

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