ClinVar Miner

Submissions for variant NM_198576.4(AGRN):c.4612G>T (p.Ala1538Ser)

gnomAD frequency: 0.00001  dbSNP: rs775550619
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000527524 SCV000653941 uncertain significance Congenital myasthenic syndrome 8 2017-05-17 criteria provided, single submitter clinical testing In summary, this variant is a novel missense change that is not predicted to affect protein function. There is no indication that it causes disease, but the available evidence is currently insufficient to prove that conclusively. Therefore, it has been classified as a Variant of Uncertain Significance. 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 serine 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. The frequency data for this variant (rs775550619) in the population databases is unreliable, as metrics indicate poor quality at this position in the ExAC database. This variant has not been reported in the literature in individuals with an AGRN-related disease. This sequence change replaces alanine with serine at codon 1538 of the AGRN protein (p.Ala1538Ser). The alanine residue is moderately conserved and there is a moderate physicochemical difference between alanine and serine.

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