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Fetal anomalies v0.4529 STT3A Zornitza Stark Marked gene: STT3A as ready
Fetal anomalies v0.4529 STT3A Zornitza Stark Gene: stt3a has been classified as Green List (High Evidence).
Fetal anomalies v0.4529 STT3A Zornitza Stark Classified gene: STT3A as Green List (high evidence)
Fetal anomalies v0.4529 STT3A Zornitza Stark Gene: stt3a has been classified as Green List (High Evidence).
Fetal anomalies v0.4404 STT3A Krithika Murali gene: STT3A was added
gene: STT3A was added to Fetal anomalies. Sources: Literature
Mode of inheritance for gene: STT3A was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: STT3A were set to 34653363; 23842455; 30701557; 28424003
Phenotypes for gene: STT3A were set to Congenital disorder of glycosylation, type Iw, autosomal dominant - MIM#619714; Congenital disorder of glycosylation, type Iw, autosomal recessive - MIM#615596
Review for gene: STT3A was set to GREEN
Added comment: Biallelic variants associated with an earlier onset of symptoms. PMID: 23842455 report IUGR in one infant. PMID: 28424003 - report 5 affected individuals from one family, birth growth parameters of 4/5 individuals suggestive of growth restriction/relative microcephaly.
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ID/DD reported in all cases (at least 7 individuals from 3 unrelated families, with 2 different homozygous variants in STT3A)

PMID: 34653363 - 16 patients from 9 families with new AD mode of inheritance (both de novo and inherited). All variants were missense within/around acritical active/catalytic sites. Patients aged 3-55yo, with children noted to be "healthy" until reaching young adulthood
Clinical features include dysmorphic features, macrocephaly (6/16), mild-moderate ID/DD (10/16), short stature (8/16), skeletal abnormalities (10/16), muscle cramps (7/16).
Functional studies verifies AR disease is caused by LOF variants, whereas the AD variants cause DN proven by cotransfection in WT yeast resulting in impaired glycosylation (protein levels unchanged).
Sources: Literature