Article
N-Glycosylation is required for Na+-dependent vitamin C transporter functionality.
Biochemical and biophysical research communications - 12 Sept 2008
Subramanian Veedamali S, Marchant Jonathan S, Reidling Jack C, Said Hamid M
Abstract excerpt
The human sodium-dependent vitamin C transporters (hSVCT1 and hSVCT2) mediate cellular uptake of ascorbic acid. Both these transporters contain potential sites for N-glycosylation in their extracellular domains (Asn-138, Asn-144 [hSVCT1]; Asn-188, Asn-196 [hSVCT2]), however the role of N-glycosylation in transporter function is unexplored. On the basis of the result that tunicamycin decreased (14)C-ascorbic acid...
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