" /> Congenital disorder of glycosylation, type ig - CISMeF





Preferred Label : Congenital disorder of glycosylation, type ig;

Symbol : CDG1G;

CISMeF acronym : CDG1G;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : CDGIg; Cdg ig;

Description : Congenital disorders of glycosylation (CDG), previously called carbohydrate-deficient glycoprotein syndromes (CDGSs), are a group of hereditary multisystem disorders first recognized by Jaeken et al. (1980). The characteristic biochemical abnormality of CDGs is the hypoglycosylation of glycoproteins, which is routinely determined by isoelectric focusing (IEF) of serum transferrin. Type I CDG comprises those disorders in which there is a defect in the assembly of lipid-linked oligosaccharides or their transfer onto nascent glycoproteins, whereas type II CDG comprises defects of trimming, elongation, and processing of protein-bound glycans. For a general discussion of CDGs, see CDG1A (212065) and CDG1B (602579).;

Inheritance : Autosomal recessive;

Molecular basis : Caused by mutation in the alpha-1,6-mannosyltransferase gene (ALG12, 607144.0001);

Laboratory abnormalities : Abnormal glycosylation of transferrin, type 1 pattern;

Prefixed ID : #607143;

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03/05/2025


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