ClinVar Miner

Submissions for variant NM_021971.4(GMPPB):c.596C>G (p.Pro199Arg)

gnomAD frequency: 0.00001  dbSNP: rs765573379
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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 RCV001317773 SCV001508447 uncertain significance Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A14; Muscular dystrophy-dystroglycanopathy (congenital with intellectual disability), type B14; Autosomal recessive limb-girdle muscular dystrophy type 2T 2021-11-23 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. 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 GMPPB protein function. ClinVar contains an entry for this variant (Variation ID: 1018469). This variant has not been reported in the literature in individuals affected with GMPPB-related conditions. This variant is present in population databases (rs765573379, gnomAD 0.002%). This sequence change replaces proline, which is neutral and non-polar, with arginine, which is basic and polar, at codon 199 of the GMPPB protein (p.Pro199Arg).

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