Author： Yamaguchi F. Macrae A.D. Brenner S.
Publisher： Academic Press
ISSN： 0888-7543
Source： Genomics, Vol.35, Iss.3, 1996-08, pp. : 603-605
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Abstract
The puffer fish, Fugu rubripes (Fugu), has been proposed as a model vertebrate genome. We have characterized two putative G-protein-coupled receptor encoding genes, FCB1A and FCB1B, obtained by degenerate PCR and low-stringency hybridization of a Fugu genomic library. These two genes show high homology to the human cannabinoid receptor type 1 (HCB1), but very low homology to the type 2 receptor. The amino acid sequences of the FCB1A and FCB1B genes are 66.2% identical, and the homology of each gene to HCB1 is 72.2 and 59.0%, respectively. The transcripts of both the FCB1A and the FCB1B receptors are abundant in the brain. No type 2 receptor could be cloned from Fugu. These data suggest that although two cannabinoid receptor-like genes are found in the puffer fish, both show similarity to the type 1 receptor found in human.
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