ETS-1 transcription factor activates the expression of mouse UDP-Gal:GA2/GM2/GD2/GT2 galactosyltransferase gene.
FEBS Lett 2004;
576:487-91. [PMID:
15498585 DOI:
10.1016/j.febslet.2004.09.066]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2004] [Revised: 09/02/2004] [Accepted: 09/21/2004] [Indexed: 10/26/2022]
Abstract
UDP-Gal:GA2/GM2/GD2/GT2 galactosyltransferase (Gal-T2) transfers galactose to the terminal N-acetylgalactosamine of either the neutral glycolipid GA2 or of the gangliosides GM2, GD2 and GT2. Previous studies revealed a tight regulation of Gal-T2 activity and mRNA expression during development of the rat CNS. Here, we study in PC12 cells the cis-acting elements involved in the activation of a fragment of 211 bp around the transcription initiation site of the mouse Gal-T2 promoter. Mutagenesis, competition experiments and functional assays showed that the Ets-1 transcription factor is involved in the activation of the Gal-T2 promoter.
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