ClinVar Miner

Submissions for variant NM_144596.4(TTC8):c.5G>A (p.Ser2Asn)

gnomAD frequency: 0.00002  dbSNP: rs199571677
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Illumina Laboratory Services, Illumina RCV000304181 SCV000389346 uncertain significance Retinitis pigmentosa 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.
Illumina Laboratory Services, Illumina RCV000360976 SCV000389347 uncertain significance Bardet-Biedl syndrome 8 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.
Invitae RCV001859883 SCV002210732 uncertain significance Bardet-Biedl syndrome 2023-08-30 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. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 314797). This variant has not been reported in the literature in individuals affected with TTC8-related conditions. This variant is present in population databases (rs199571677, gnomAD 0.09%). This sequence change replaces serine, which is neutral and polar, with asparagine, which is neutral and polar, at codon 2 of the TTC8 protein (p.Ser2Asn).
Dept Of Ophthalmology, Nagoya University RCV003888731 SCV004707793 likely benign Retinal dystrophy 2023-10-01 criteria provided, single submitter research

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