RGD Reference Report - Identification of a novel protein containing two C2 domains selectively expressed in the rat brain and kidney. - Rat Genome Database

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Identification of a novel protein containing two C2 domains selectively expressed in the rat brain and kidney.

Authors: Kwon, OJ  Gainer, H  Wray, S  Chin, H 
Citation: Kwon OJ, etal., FEBS Lett 1996 Jan 8;378(2):135-9.
RGD ID: 1299541
Pubmed: PMID:8549819   (View Abstract at PubMed)

We have isolated and characterized a rat brain cDNA clone which encodes a new protein of 474 amino acids in length which contains two C2 domains structurally homologous to those present in synaptotagmins. The overall amino acid identity in C2 domains between this protein and the synaptotagmins is 36-44%. This protein also contains 3 putative consensus sequences for phosphorylation by cAMP-dependent protein kinase. RNA blot hybridization revealed a 3.0 kb transcript abundantly expressed only in the rat brain and the kidney. Thus, we called this brain/kidney protein (B/K). In situ hybridization and Northern blot analyses showed that the B/K transcript was found in forebrain including the olfactory bulb, cerebral cortex, hippocampus, and hypothalamus. In the kidney, high levels of B/K transcript were expressed in the papillary region of the inner medulla, the inner stripe of the outer medulla and the cortex. The selective expression in forebrain and kidney suggests that B/K may be involved in similar cAMP-dependent processes at these very different sites.

Objects referenced in this article
Gene Syt17 synaptotagmin 17 Rattus norvegicus

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