ClinVar Miner

Submissions for variant NM_177438.2(DICER1):c.4859G>A (p.Ser1620Asn) (rs1555367601)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000533667 SCV000658311 uncertain significance DICER1-related pleuropulmonary blastoma cancer predisposition syndrome 2017-06-01 criteria provided, single submitter clinical testing This sequence change replaces serine with asparagine at codon 1620 of the DICER1 protein (p.Ser1620Asn). The serine residue is weakly conserved and there is a small physicochemical difference between serine and asparagine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with a DICER1-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 asparagine 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, this variant has uncertain impact on DICER1 function. The available evidence is currently insufficient to determine its role in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

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