Congenital disorders of glycosylation

Abstract

Congenital disorders of glycosylation are group of hereditary diseases resulting in severe psychomotor retardation and multiorgan failure. So far eleven different defects were identified on the pathway of N-glycan biosynthesis. Seven of them belong to CDG type I and result in incomplete occupation of potential N-glycosylation sites. Four defects were found in N-glycan processing. Molecular background of CDG and potential perspectives of therapy are summarised and updated in this review.