ClinVar Miner

Submissions for variant NM_198576.4(AGRN):c.3803G>A (p.Gly1268Glu)

gnomAD frequency: 0.00020  dbSNP: rs755427684
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000689712 SCV000817377 uncertain significance Congenital myasthenic syndrome 8 2023-12-06 criteria provided, single submitter clinical testing This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 1268 of the AGRN protein (p.Gly1268Glu). This variant is present in population databases (rs755427684, gnomAD 0.06%). This variant has not been reported in the literature in individuals affected with AGRN-related conditions. ClinVar contains an entry for this variant (Variation ID: 569151). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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.
Ambry Genetics RCV002544853 SCV003739517 uncertain significance Inborn genetic diseases 2022-05-05 criteria provided, single submitter clinical testing The c.3803G>A (p.G1268E) alteration is located in exon 23 (coding exon 23) of the AGRN gene. This alteration results from a G to A substitution at nucleotide position 3803, causing the glycine (G) at amino acid position 1268 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.

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