ClinVar Miner

Submissions for variant NM_022124.6(CDH23):c.6911G>A (p.Arg2304Gln) (rs201434373)

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Total submissions: 6
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Laboratory for Molecular Medicine, Partners HealthCare Personalized Medicine RCV000039257 SCV000062941 likely benign not specified 2019-03-01 criteria provided, single submitter clinical testing The p.Arg2309Gln variant in CDH23 is classified as likely benign because it has been identified in 0.24% (47/19534) of East Asian chromosomes by gnomAD (http://gnomad.broadinstitute.org), and computational prediction tools do not suggest an impact to the protein. Although it has been previously reported by our laboratory in 3 individuals with hearing loss, none of these individuals were found to have a pathogenic variant in CDH23 in trans.
Illumina Clinical Services Laboratory,Illumina RCV000305248 SCV000363850 uncertain significance CDH23-Related Disorders 2016-06-14 criteria provided, single submitter clinical testing
Illumina Clinical Services Laboratory,Illumina RCV000353028 SCV000363851 uncertain significance Deafness, autosomal recessive 12 2018-01-12 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.
Illumina Clinical Services Laboratory,Illumina RCV000260501 SCV000363852 uncertain significance Usher syndrome type 1D 2018-01-12 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.
Fulgent Genetics,Fulgent Genetics RCV000764921 SCV000896084 uncertain significance Deafness, autosomal recessive 12; Usher syndrome type 1D; PITUITARY ADENOMA 5, MULTIPLE TYPES 2018-10-31 criteria provided, single submitter clinical testing
Invitae RCV001244627 SCV001417861 uncertain significance not provided 2019-12-26 criteria provided, single submitter clinical testing This sequence change replaces arginine with glutamine at codon 2304 of the CDH23 protein (p.Arg2304Gln). The arginine residue is highly conserved and there is a small physicochemical difference between arginine and glutamine. This variant is present in population databases (rs201434373, ExAC 0.2%). This variant has not been reported in the literature in individuals with CDH23-related conditions. ClinVar contains an entry for this variant (Variation ID: 46021). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C35"). 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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