ClinVar Miner

Submissions for variant NM_006939.4(SOS2):c.1976T>C (p.Leu659Ser)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001050438 SCV001214545 uncertain significance Noonan syndrome 9 2019-04-06 criteria provided, single submitter clinical testing This sequence change replaces leucine with serine at codon 659 of the SOS2 protein (p.Leu659Ser). The leucine residue is moderately conserved and there is a large physicochemical difference between leucine and serine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with SOS2-related conditions. 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 tolerated, but 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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