ClinVar Miner

Submissions for variant NM_001101426.4(CRPPA):c.551G>A (p.Arg184Gln)

gnomAD frequency: 0.00006  dbSNP: rs773739293
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Total submissions: 5
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Eurofins Ntd Llc (ga) RCV000726360 SCV000344070 uncertain significance not provided 2016-07-27 criteria provided, single submitter clinical testing
Illumina Laboratory Services, Illumina RCV000374609 SCV000468017 uncertain significance Congenital Muscular Dystrophy, alpha-dystroglycan related 2018-01-13 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.
GeneDx RCV000726360 SCV000518119 likely benign not provided 2019-02-01 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV000539554 SCV000652584 uncertain significance Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A, 7; Autosomal recessive limb-girdle muscular dystrophy type 2U 2023-12-30 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 184 of the ISPD protein (p.Arg184Gln). This variant is present in population databases (rs773739293, gnomAD 0.1%), including at least one homozygous and/or hemizygous individual. This variant has not been reported in the literature in individuals affected with ISPD-related conditions. ClinVar contains an entry for this variant (Variation ID: 289677). 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 expected to disrupt ISPD protein function with a positive predictive value of 80%. 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.
Revvity Omics, Revvity RCV000726360 SCV003828635 uncertain significance not provided 2022-09-27 criteria provided, single submitter clinical testing

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