. "Authored: Jassal, B, 2008-07-03 10:57:39"^^ . "Edited: D'Eustachio, P, 2008-09-01 11:58:31"^^ . "Reviewed: Bockaert, J, 2008-09-01 12:04:13"^^ . "Rhodopsin-like receptors (class A/1) are the largest group of GPCRs and are the best studied group from a functional and structural point of view. They show great diversity at the sequence level and thus, can be subdivided into 19 subfamilies (Subfamily A1-19) based on a phylogenetic analysis (Joost P and Methner A, 2002). They represent members which include hormone, light and neurotransmitter receptors and encompass a wide range of functions including many autocrine, paracrine and endocrine processes."^^ . . . . . . . "Class A/1 (Rhodopsin-like receptors)"^^ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .