Congenital disorder of glycosylation, type id - CISMeF
Congenital disorder of glycosylation, type idOMIM Phenotype
Preferred Label : Congenital disorder of glycosylation, type id;
Symbol : CDG1D;
CISMeF acronym : CDGS4; CDG1D;
Type : Phenotype, molecular basis known;
Alternative titles and symbols : CDGId; Carbohydrate-deficient glycoprotein syndrome, type iv; Cdg id; Cdgs, type iv; CDGS4;
Description : Congenital disorders of glycosylation (CDGs) are a genetically heterogeneous group
of autosomal recessive disorders caused by enzymatic defects in the synthesis and
processing of asparagine (N)-linked glycans or oligosaccharides on glycoproteins.
Type I CDGs comprise defects in the assembly of the dolichol lipid-linked oligosaccharide
(LLO) chain and its transfer to the nascent protein. These disorders can be identified
by a characteristic abnormal isoelectric focusing profile of plasma transferrin (Leroy,
2006). For a discussion of the classification of CDGs, see CDG1A (212065).;
Inheritance : Autosomal recessive;
Molecular basis : Caused by mutation in the homolog of the S. cerevisiae ALG3 gene (ALG3, 608750.0001);
Laboratory abnormalities : Abnormal isoelectric focusing of serum transferrin (type 1 pattern without increase
of asialotransferrin); Hypoglycosylation of plasma glycoproteins; Dolichyl-P-Man:Man(5)GlcNAc(2)-PP-dolichyl mannosyltransferase deficiency;