ClinVar Miner

Submissions for variant NM_006270.5(RRAS):c.649C>G (p.Leu217Val)

gnomAD frequency: 0.00003  dbSNP: rs988964363
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000685059 SCV000812531 uncertain significance Noonan syndrome 2018-06-26 criteria provided, single submitter clinical testing 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 valine 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. This sequence change replaces leucine with valine at codon 217 of the RRAS protein (p.Leu217Val). The leucine residue is moderately conserved and there is a small physicochemical difference between leucine and valine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with RRAS-related disease. 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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