IngentaConnect Molecular Biology of Serotonin Receptors

Authors: Kroeze, W.K.; Kristiansen, K.; Roth, B.L.

Source: Current Topics in Medicinal Chemistry, Volume 2, Number 6, 1 June 2002 , pp. 507-528(22)

Publisher: Bentham Science Publishers

Abstract:

5-hydroxytryptamine (5-HT serotonin) is a neurotransmitter essential for a large number of physiological processes including the regulation of vascular and non-vascular smooth muscle contraction, modulation of platelet aggregation, and the regulation of appetite, mood, anxiety, wakefulness and perception. To mediate this astonishing array of functions, no fewer than 15 separate receptors have evolved, of which all but two (5-HT3A and 5-HT3B) are G-protein coupled receptors. This review will summarize our current understanding of the structure and function of the G-protein coupled 5-HT receptors. In particular, a systematic review of the available mutagenesis studies of 5-HT receptors will be presented. This information will be synthesized to provide a working model of agonist and antagonist actions at a prototypic 5-HT receptor-the 5-HT2A receptor. Finally, examples will be given to demonstrate that a detailed knowledge of the predicted structure of one receptor can be useful for structure-based drug design.

Keywords: Molecular Biology; Serotonin Receptors; G-PROTEIN; mRNA EDITING; 5-HT RECEPTORS

Document Type: Review article

DOI: 10.2174/1568026023393796

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Molecular Biology of Serotonin Receptors - Structure and Function at the Molecular Level