ClinVar Miner

Submissions for variant NM_203446.3(SYNJ1):c.3811A>G (p.Met1271Val)

gnomAD frequency: 0.00004  dbSNP: rs751069566
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000655758 SCV000777689 uncertain significance Early-onset Parkinson disease 20; Developmental and epileptic encephalopathy, 53 2022-09-01 criteria provided, single submitter clinical testing This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1310 of the SYNJ1 protein (p.Met1310Val). This variant is present in population databases (rs751069566, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with SYNJ1-related conditions. ClinVar contains an entry for this variant (Variation ID: 544561). 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, which suggests that this missense change does not adversely affect protein function. 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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