ClinVar Miner

Submissions for variant NC_000001.11:g.196706898_196873196del

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Victorian Clinical Genetics Services, Murdoch Childrens Research Institute RCV003225694 SCV003921982 pathogenic Atypical hemolytic-uremic syndrome with I factor anomaly criteria provided, single submitter clinical testing A large heterozygous deletion (approximately 166kb) encompassing CFH exons 10-22 (NM_000186.4), CFHR3 and CFHR1 was detected using whole genome sequencing. While this specific deletion is novel, the smaller deletion of CFHR3 and CFHR1 is a known susceptibility allele for aHUS and has been reported in approximately 26.5% of individuals with aHUS (GeneReviews). Individuals with aHUS harbouring various copy number variants spanning the CFH operon in combination with single nucleotide variants in CFI have been reported (PMIDs: 19861685, 23431077). Microarray analysis confirmed heterozygous deletion of a smaller region (approximately 38.4kb) encompassing CFH exons 10-22 (NM_000186.4). Loss of function variants of CFH are associated with susceptibility to aHUS. Partial deletions of CFH have not been reported. However, complex rearrangements/deletions/gene fusions of the CFH gene family are well documented (Gene Reviews, PMID:20301541, Cantsilieris et al 2018, 29686068)

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