ClinVar Miner

Submissions for variant NM_004168.4(SDHA):c.715A>T (p.Ile239Leu)

gnomAD frequency: 0.00001  dbSNP: rs760106352
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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 RCV001872132 SCV002125557 uncertain significance Mitochondrial complex II deficiency, nuclear type 1; Paragangliomas 5 2023-11-13 criteria provided, single submitter clinical testing This sequence change replaces isoleucine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 239 of the SDHA protein (p.Ile239Leu). This variant is present in population databases (rs760106352, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with SDHA-related conditions. ClinVar contains an entry for this variant (Variation ID: 1358948). 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) performed at Invitae indicates that this missense variant is not expected to disrupt SDHA protein function with a negative predictive value of 95%. 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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