ClinVar Miner

Submissions for variant NM_001042432.2(CLN3):c.461-3C>T

dbSNP: rs181995380
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Illumina Laboratory Services, Illumina RCV000393510 SCV000396330 uncertain significance Neuronal Ceroid-Lipofuscinosis, Dominant/Recessive 2016-06-14 criteria provided, single submitter clinical testing
Illumina Laboratory Services, Illumina RCV001119061 SCV001277401 uncertain significance Neuronal ceroid lipofuscinosis 3 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 RCV002521005 SCV003290230 uncertain significance Neuronal ceroid lipofuscinosis 2022-10-25 criteria provided, single submitter clinical testing This sequence change falls in intron 7 of the CLN3 gene. It does not directly change the encoded amino acid sequence of the CLN3 protein. It affects a nucleotide within the consensus splice site. This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with CLN3-related conditions. ClinVar contains an entry for this variant (Variation ID: 318723). Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant is not likely to affect RNA splicing. This variant disrupts the c.461-3C nucleotide in the CLN3 gene. Other variant(s) that disrupt this nucleotide have been determined to be pathogenic (PMID: 9536098, 17576681, 28542676; Invitae). This suggests that this nucleotide is clinically significant, and that variants that disrupt this position are likely to be disease-causing. 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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