ClinVar Miner

Submissions for variant NM_014714.4(IFT140):c.1559C>T (p.Thr520Ile)

gnomAD frequency: 0.00001  dbSNP: rs1321089981
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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) RCV000596555 SCV000702387 uncertain significance not provided 2016-10-21 criteria provided, single submitter clinical testing
Illumina Laboratory Services, Illumina RCV001115252 SCV001273213 uncertain significance Saldino-Mainzer syndrome 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.
Labcorp Genetics (formerly Invitae), Labcorp RCV001115252 SCV002261623 uncertain significance Saldino-Mainzer syndrome 2024-11-05 criteria provided, single submitter clinical testing This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 520 of the IFT140 protein (p.Thr520Ile). This variant is present in population databases (no rsID available, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with IFT140-related conditions. ClinVar contains an entry for this variant (Variation ID: 497715). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt IFT140 protein function with a negative predictive value of 95%. 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.
Fulgent Genetics, Fulgent Genetics RCV002491179 SCV002782113 uncertain significance Saldino-Mainzer syndrome; Retinitis pigmentosa 80 2021-12-05 criteria provided, single submitter clinical testing
Breakthrough Genomics, Breakthrough Genomics RCV000596555 SCV005194103 uncertain significance not provided criteria provided, single submitter not provided

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