Genetic complementation reveals a novel human congenital disorder of glycosylation of type II, due to inactivation of the Golgi CMP–sialic acid transporter

We have identified a homozygous G>A substitution in the donor splice site of intron 6 (IVS6 + 1G>A) of the cytidine monophosphate (CMP)–sialic acid transporter gene of Lec2 cells as the mutation responsible for their asialo phenotype. These cells were used in complementation studies to test th...

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