ClinVar Miner

Submissions for variant NM_000268.4(NF2):c.1256C>T (p.Thr419Met)

dbSNP: rs1216540232
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001359886 SCV001555775 uncertain significance Neurofibromatosis, type 2 2024-01-31 criteria provided, single submitter clinical testing This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 419 of the NF2 protein (p.Thr419Met). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with NF2-related conditions. ClinVar contains an entry for this variant (Variation ID: 1051800). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on NF2 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.
Ambry Genetics RCV002420783 SCV002678490 uncertain significance Hereditary cancer-predisposing syndrome 2022-02-03 criteria provided, single submitter clinical testing The p.T419M variant (also known as c.1256C>T), located in coding exon 12 of the NF2 gene, results from a C to T substitution at nucleotide position 1256. The threonine at codon 419 is replaced by methionine, an amino acid with similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

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