ClinVar Miner

Submissions for variant NM_016630.7(SPG21):c.467C>G (p.Pro156Arg)

dbSNP: rs2085634952
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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 RCV001232849 SCV001405421 uncertain significance Mast syndrome 2020-02-26 criteria provided, single submitter clinical testing 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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This sequence change replaces proline with arginine at codon 156 of the SPG21 protein (p.Pro156Arg). The proline residue is highly conserved and there is a moderate physicochemical difference between proline and arginine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with SPG21-related conditions.

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