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Ann N Y Acad Sci. 1998 Dec 15;861:49-56.

5-HT4 receptors: cloning and expression of new splice variants.

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1
CNRS UPR 9023, Centre CNRS-INSERM de Pharmacologie-Endocrinologie (CCIPE), Montpellier, France.

Abstract

On the basis of differences in the potencies and intrinsic activity of 5-HT4 receptor agonists in different biological models it has been suggested that there is heterogeneity among 5-HT4 receptors. Here, we report the molecular cloning of several 5-HT4 receptor splice variants in mouse, rat, and human brain. Our data suggest that the differences in efficacy of 5-HT4 ligands on 5-HT4 receptor-mediated responses in several tissues is due to differences in coupling efficiency rather than to the presence of different 5-HT4 receptor isoforms.

[Indexed for MEDLINE]

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