Publication Search

Search for publications by

Multiple promoters direct the tissue-specific expression of novel N-terminal variant human vitamin D receptor gene transcripts


The effects of 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3] are mediated by the vitamin D receptor (VDR), a member of the nuclear receptor superfamily of transcriptional regulators. We have identified upstream exons of the human (h) VDR gene that are incorporated into variant transcripts, two of which encode N-terminal variant receptor proteins. Expression of the hVDR gene, which spans more than 60 kb and consists of at least 14 exons, is directed by two distinct promoters. A tissue-specific distal promoter generates unique transcripts in tissues involved in calcium regulation by 1, 25-(OH)2D3 and can direct the expression of a luciferase reporter gene in a cell line-specific manner. These major N-terminal differences in hVDR transcripts, potentially resulting in structural differences in the expressed receptor, may contribute to cellular responsiveness to 1,25-(OH)2D3 through tissue differences in the regulation of VDR expression.

Type Journal
ISBN 0027-8424 (Print)
Authors Crofts, L. A.;Hancock, M. S.;Morrison, N. A.;Eisman, J. A. :
Publisher Name PNAS
Published Date 1998-01-01 00:00:00
Published Volume 95
Published Issue 18
Published Pages 10529-34
Status Published In-print