ClinVar Miner

Submissions for variant NM_003000.3(SDHB):c.97G>A (p.Ala33Thr)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001315755 SCV001506345 uncertain significance Gastrointestinal stromal tumor; Paragangliomas 4; Pheochromocytoma 2020-08-04 criteria provided, single submitter clinical testing This sequence change replaces alanine with threonine at codon 33 of the SDHB protein (p.Ala33Thr). The alanine residue is highly conserved and there is a small physicochemical difference between alanine and threonine. This variant is present in population databases (rs777898500, ExAC 0.03%). This variant has not been reported in the literature in individuals with SDHB-related conditions. 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 SDHB 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.

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