ClinVar Miner

Submissions for variant NC_000017.11:g.(?_46031456)_(46082562_?)del

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000708265 SCV000837375 pathogenic Koolen-de Vries syndrome 2019-03-13 criteria provided, single submitter clinical testing This variant is a gross deletion of the genomic region encompassing exons 3-15 of the KANSL1 gene. The 5' boundary is likely confined to intron 3. The 3' end of this event is unknown as it extends through the termination codon beyond the assayed region for this gene and may encompass additional genes. While this deletion is not anticipated to result in nonsense mediated decay, it is expected to create a truncated protein product or disrupt mRNA translation. Isolated exons 3-15 deletions of KANSL1 have not been reported in the literature. However, larger copy number events that include this region have been reported in individuals affected with 17q21.31 microdeletion syndrome (PMID: 26306646). A truncating variant (p.Leu1042Arffs*71) that lies downstream of this variant, and is also not anticipated to result in nonsense mediated decay, has been determined to be pathogenic (PMID: 26306646). This suggests that deletion of this region of the KANSL1 protein is causative of disease. For these reasons, this variant has been classified as Pathogenic.

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