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Definition

A form of congenital disorder of glycosylation, a genetically heterogeneous group of autosomal recessive, multisystem disorders caused by a defect in glycoprotein biosynthesis and characterized by under-glycosylated serum glycoproteins. Congenital disorders of glycosylation result in a wide variety of clinical features, such as defects in the nervous system development, psychomotor retardation, dysmorphic features, hypotonia, coagulation disorders, and immunodeficiency. The broad spectrum of features reflects the critical role of N-glycoproteins during embryonic development, differentiation, and maintenance of cell functions. CDG2O is characterized by hepatosplenomegaly, liver failure, hypotonia, and psychomotor disability.

Acronym

CDG2O

Synonyms

CDGIIo
CDG IIo
CDG-IIo
Congenital disorder of glycosylation, type IIo

Keywords

Congenital disorder of glycosylation