ClinVar Miner

Submissions for variant NM_000268.4(NF2):c.769C>T (p.Pro257Ser)

gnomAD frequency: 0.00001  dbSNP: rs777059212
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001349619 SCV001543971 uncertain significance Neurofibromatosis, type 2 2022-07-13 criteria provided, single submitter clinical testing This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 257 of the NF2 protein (p.Pro257Ser). This variant is present in population databases (rs777059212, gnomAD 0.007%). 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: 1045243). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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 RCV002404830 SCV002673202 uncertain significance Hereditary cancer-predisposing syndrome 2020-02-03 criteria provided, single submitter clinical testing The p.P257S variant (also known as c.769C>T), located in coding exon 8 of the NF2 gene, results from a C to T substitution at nucleotide position 769. The proline at codon 257 is replaced by serine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

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