ClinVar Miner

Submissions for variant NC_000005.9:g.(?_112090578)_(112111444_?)dup

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000813971 SCV000954358 uncertain significance Familial adenomatous polyposis 1 2019-11-06 criteria provided, single submitter clinical testing This variant results in a copy number gain of the genomic region encompassing exons 2-5 of the APC gene. The 5' end of this event is likely confined to intron 1 of the APC gene, but not affecting promoters 1A and 1B. The 3' boundary is likely confined to intron 5 of the APC gene. While the exact position of this variant cannot be determined from this data, sub-genic copy number gains are generally in tandem (PMID: 25640679). Similar copy number gains involving exons 2-4, 2-6, 2-8, and 2-11 have been observed in individuals with clinical features consistent with familial adenomatous polyposis (FAP) or attenuated FAP (AFAP) (PMID: 18406876, 23561487, Invitae). However, this particular gain of exons 2-5 has been observed in one or more individuals who were not affected with clinical features of FAP or AFAP (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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