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1: DNA Seq. 2003 Apr;14(2):129-33.Links

Genomic characterisation of putative growth hormone releasing hormone (GHRH) receptor genes in the teleost fish Fugu rubripes.

Cardoso JC, Power DM, Elgar G, Clark MS.

Fugu Genomics Group, MRC-HGMP Resource Centre, Genome Campus, Hinxton, Cambridge, UK. jcardosa@hgmp.mrc.ac.uk

The genomic organisation of a putative GHRH receptor gene has been characterised in the teleost fish, Fugu rubripes. It comprises 13 exons and is at least 1.2 x larger than previously described vertebrate GHRH receptors. Sequence conservation with other vertebrate GHRH receptors is highest over the seven transmembrane domains with preservation of 8 conserved cysteines and an N-glycosylation site in the N-terminal region, which are important for receptor activation. Database mining revealed a further putative GHRH receptor in Fugu, with phylogenetic tree topology indicating that this was potentially a teleost-specific duplication event. This is the first time that the genomic organisation of a GHRH receptor gene has been characterised from a nonmammalian vertebrate.

PMID: 12825354 [PubMed - indexed for MEDLINE]