SSR4-CDG

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Alternate names[edit | edit source]

CONGENITAL DISORDER OF GLYCOSYLATION, TYPE Iy; CDG1Y ; CDG IY; CDGIy; Congenital disorder of glycosylation type Iy; Carbohydrate deficient glycoprotein syndrome type Iy; CDG syndrome type Iy; CDG-Iy; Congenital disorder of glycosylation type 1y

Definition[edit | edit source]

SSR4-CDG is a form of congenital disorders of N-linked glycosylation characterized by neurologic abnormalities (global developmental delay in language, social skills and fine and gross motor development, intellectual disability, hypotonia, microcephaly, seizures/epilepsy), facial dysmorphism (deep set eyes, large ears, hypoplastic vermillion of upper lip, large mouth with widely spaced teeth), feeding problems often due to chewing difficulties and aversion to food with certain textures, failure to thrive, gastrointestinal abnormalities (reflux or vomiting) and strabismus.

cause[edit | edit source]

The disease is caused by mutations in the gene SSR4 (Xq28).

NIH genetic and rare disease info[edit source]

SSR4-CDG is a rare disease.


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