Gangliosides are membrane-bound glycosphingolipids containing sialic acid. Ganglioside GD3 is known to be important for cell adhesion and growth of cultured malignant cells. The protein encoded by ST8SIA1 is a type II membrane protein that catalyzes the transfer of sialic acid from CMP-sialic acid to GM3 to produce gangliosides GD3 and GT3. The encoded protein may be found in the Golgi apparatus and is a member of glycosyltransferase family 29.[6]
In melanocytic cells, ST8SIA1 gene expression may be regulated by MITF.[7]
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Kang NY, Kang Y, Kang SK, et al. (2006). "Transcriptional regulation of the human GD3 synthase gene expression in Fas-induced Jurkat T cells: a critical role of transcription factor NF-kappaB in regulated expression". Glycobiology. 16 (5): 375–89. doi:10.1093/glycob/cwj087. PMID16481330.
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