ClinVar Miner

Submissions for variant NM_017617.5(NOTCH1):c.2917G>A (p.Ala973Thr) (rs200699541)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000621599 SCV000739430 uncertain significance Cardiovascular phenotype 2016-06-03 criteria provided, single submitter clinical testing Lines of evidence used in support of classification: Insufficient evidence
Invitae RCV000703448 SCV000832347 uncertain significance Adams-Oliver syndrome 5 2018-09-17 criteria provided, single submitter clinical testing This sequence change replaces alanine with threonine at codon 973 of the NOTCH1 protein (p.Ala973Thr). The alanine residue is weakly conserved and there is a small physicochemical difference between alanine and threonine. This variant is present in population databases (rs200699541, ExAC 0.01%). This variant has not been reported in the literature in individuals with NOTCH1-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The threonine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

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