Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 396, Issue 3, Pages 679-683Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2010.04.161
Keywords
Rab6 GTPase; Mint proteins; FRET; Alzheimer's disease; Cellular transport
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Funding
- Studienstiftung des Deutschen Volkes
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In extension to previously applied techniques like yeast two-hybrid and GST pull-down assays, we successfully established a FACS-based FRET analysis to investigate the interaction of the Mint3 adaptor protein and the small Rab GTPase Rab6A in living mammalian cells. A Mint3 mutant containing only the PTB domain (Mint3 Delta 6) is able to interact with the constitutively active form of Rab6A. Mint3 Delta 4, a mutant lacking part of the PTB domain was unable to interact with Rab6A in GST pull-down analysis and did not produce FRET signals, when co-expressed with active Rab6A. We demonstrate that this FAGS-based FRET analysis is a suitable method for interaction studies between,two proteins in living cells. (C) 2010 Elsevier Inc. All rights reserved.
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