ClinVar Miner

Submissions for variant NM_177965.4(CFAP418):c.521A>G (p.Lys174Arg)

gnomAD frequency: 0.00039  dbSNP: rs148114532
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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) RCV000400757 SCV000335498 uncertain significance not provided 2015-09-21 criteria provided, single submitter clinical testing
Illumina Laboratory Services, Illumina RCV000376242 SCV000475485 uncertain significance Cone-rod dystrophy 16 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 Laboratory Services, Illumina RCV000265472 SCV000475486 uncertain significance Retinitis pigmentosa 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.
Labcorp Genetics (formerly Invitae), Labcorp RCV000400757 SCV001204236 benign not provided 2024-01-15 criteria provided, single submitter clinical testing
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV001174660 SCV001337875 uncertain significance not specified 2023-04-20 criteria provided, single submitter clinical testing Variant summary: C8orf37 c.521A>G (p.Lys174Arg) results in a conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00085 in 250416 control chromosomes, predominantly at a frequency of 0.0013 within the South Asian subpopulation in the gnomAD database. To our knowledge, no occurrence of c.521A>G in individuals affected with Bardet-Biedl Syndrome 21 and no experimental evidence demonstrating its impact on protein function have been reported. Three clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 and classified as VUS (n=2) and Benign (n=1). Based on the evidence outlined above, the variant was classified as uncertain significance.

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