The interplay between calcium metabolism and glycosylation in yeast is largely unknown. In order to clarify this relationship, the effect of a mutation in the KlOCH1 gene, encoding the Golgi α-1,6-mannosyltransferase, on calcium homeostasis was studied in the yeast Kluyveromyces lactis. In particular, the role of the KlMID1 gene, encoding one of the components of the plasma membrane calcium channel (Cch1-Mid1), was investigated.
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