A GFP fluorescence-based approach to determine detergent insolubility of the human serotonin1A receptor.

Abstract:

:Insolubility in non-ionic detergents such as Triton X-100 is a widely used biochemical criterion for characterization of membrane domains. We report here a novel green fluorescent protein fluorescence-based approach to directly determine detergent insolubility of specific membrane proteins. We have applied this method to explore the detergent resistance of an important G-protein coupled receptor, the serotonin1A (5-HT1A) receptor. Our results show, for the first time, that a small yet significant fraction of the 5-HT1A receptor exhibits detergent insolubility. These results are validated by control experiments involving fluorescent lipid probes and protein markers. Our results assume relevance in the context of localization of the 5-HT1A receptor in membrane domains and its significance in receptor function and signaling.

journal_name

FEBS Lett

journal_title

FEBS letters

authors

Kalipatnapu S,Chattopadhyay A

doi

10.1016/j.febslet.2004.09.055

keywords:

subject

Has Abstract

pub_date

2004-10-22 00:00:00

pages

455-60

issue

3

eissn

0014-5793

issn

1873-3468

pii

S0014579304011846

journal_volume

576

pub_type

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