ClinVar Miner

Submissions for variant NM_144997.7(FLCN):c.1432+5G>C

dbSNP: rs786203179
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000166378 SCV000217170 uncertain significance Hereditary cancer-predisposing syndrome 2023-06-27 criteria provided, single submitter clinical testing The c.1432+5G>C intronic variant results from a G to C substitution 5 nucleotides after coding exon 9 in the FLCN gene. This nucleotide position is highly conserved in available vertebrate species. In silico splice site analysis predicts that this alteration will weaken the native splice donor site,. RNA studies have demonstrated that this alteration results in a splice defect; the clinical impact of this abnormal splicing is unknown at this time (Ambry internal data). Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.
Invitae RCV001038275 SCV001201739 uncertain significance Birt-Hogg-Dube syndrome 2023-09-27 criteria provided, single submitter clinical testing This sequence change falls in intron 12 of the FLCN gene. It does not directly change the encoded amino acid sequence of the FLCN 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 FLCN-related conditions. ClinVar contains an entry for this variant (Variation ID: 186735). Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Studies have shown that this variant is associated with altered splicing resulting in multiple RNA products (Invitae). 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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