Headless splice variant acting as dominant negative calcitonin receptor.

Headless splice variant acting as dominant negative calcitonin receptor. Research Abstract Details 

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Headless splice variant acting as dominant negative calcitonin receptor. Abstract Text:

Kakon Nag,Naznin Sultana,Akira Kato,Shigehisa Hirose,Kakon Nag,Naznin Sultana,Akira Kato,Shigehisa Hirose,

Calcitonin receptor (CTR) is a member of class B G protein-coupled receptor (GPCR) superfamily. We have recently identified the CTR gene and its two transcriptional isoforms, mfCTR and mfCTRDeltaN, in mefugu (mf) (Takifugu obscurus). Here we characterized the mfCTRDeltaN that lacks hormone-binding extracellular N-terminal domain. Strong expression in the liver and weak but broad tissue distribution of its mRNA, revealed by Northern analysis, suggested physiological significance of this headless splice variant. Biochemical and immunocytochemical analyses revealed that it acts as a naturally occurring dominant negative isoform by forming a heterodimer with normal CTR. The headless mfCTRDeltaN characterized here is the first case of N-terminally truncated dominant negative form of GPCR, and immunocytochemistry used for detecting the heterodimer formation may be useful as a novel method for analyzing membrane protein interaction in a living cell.

Headless splice variant acting as dominant negative calcitonin receptor. Publishing Authors By Initials

K Nag,N Sultana,A Kato,S Hirose,K Nag,N Sultana,A Kato,S Hirose,

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Headless splice variant acting as dominant negative calcitonin receptor. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Biochemical and biophysical research communication

VOLUME: 362

Page Numbers: 1037-43

Journal Abbreviation: Biochem. Biophys. Res. Commun.

ISSN: 0006-291X

DAY: 29

MONTH: 08

YEAR: 2007

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LANGUAGE: eng

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Grant and Affiliation Information for Headless splice variant acting as dominant negative calcitonin receptor.

AFFILIATION: Department of Biological Sciences, Tokyo Institute of Technology, 4259-B19 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan.

Country: United States

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MEDLINETA: Biochem Biophys Res Commun

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