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Genetic Epilepsy v0.2028 OSTC Lauren Rogers reviewed gene: OSTC: Rating: RED; Mode of pathogenicity: None; Publications: ; Phenotypes: Oligosaccharyltransferase complex-congenital disorders of glycosylation; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Genetic Epilepsy v0.1336 OSTC Zornitza Stark Marked gene: OSTC as ready
Genetic Epilepsy v0.1336 OSTC Zornitza Stark Gene: ostc has been classified as Red List (Low Evidence).
Genetic Epilepsy v0.1336 OSTC Zornitza Stark Classified gene: OSTC as Red List (low evidence)
Genetic Epilepsy v0.1336 OSTC Zornitza Stark Gene: ostc has been classified as Red List (Low Evidence).
Genetic Epilepsy v0.1317 OSTC Belinda Chong gene: OSTC was added
gene: OSTC was added to Genetic Epilepsy. Sources: Literature
Mode of inheritance for gene: OSTC was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: OSTC were set to PMID: 32267060
Phenotypes for gene: OSTC were set to Oligosaccharyltransferase complex-congenital disorders of glycosylation
Review for gene: OSTC was set to RED
Added comment: A patient with microcephaly, dysmorphic facies, congenital heart defect, focal epilepsy, infantile spasms, skeletal dysplasia, and a type 1 serum transferrin isoelectrofocusing due to a novel CDG caused by a homozygous variant in the oligosaccharyltransferase complex noncatalytic subunit (OSTC) gene involved in glycosylation and confirmed by serum transferrin electrophoresis.
Patient was homozygous for a canonical splice variant (c.431 + 1G > A), mRNA from patient's fibroblast showed mRNA transcript reduced 80-90%/aberrant splicing - predicting NMD.
GnomAD - 10 hets, 0 hom
Sources: Literature