ClinVar Miner

Submissions for variant NM_004612.4(TGFBR1):c.820A>C (p.Thr274Pro)

dbSNP: rs863223816
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000466576 SCV000548346 uncertain significance Familial thoracic aortic aneurysm and aortic dissection 2020-03-05 criteria provided, single submitter clinical testing In summary, this variant is a novel missense change with uncertain impact on protein function. It has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies. This variant is not present in population databases (ExAC no frequency) and has not been reported in the literature in individuals with a TGFBR1-related disease. This variant has been reported to segregate with aortopathy in a single family (Invitae). This sequence change replaces threonine with proline at codon 274 of the TGFBR1 protein (p.Thr274Pro). The threonine residue is highly conserved and there is a small physicochemical difference between threonine and proline.

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