ClinVar Miner

Submissions for variant NM_001005273.3(CHD3):c.2749A>G (p.Asn917Asp)

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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 RCV004594912 SCV005086861 pathogenic Snijders Blok-Campeau syndrome 2023-07-17 criteria provided, single submitter clinical testing Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Pathogenic. Following criteria are met: 0103 - Loss of function and gain of function are known mechanisms of disease in this gene and are associated with Snijders Blok-Campeau syndrome (MIM#618205), however no clear genotype-phenotype correlations have been identified to determine how both overactivity and underactivity of CHD3 can result in the same phenotype (PMID: 32483341). (I) 0107 - This gene is associated with autosomal dominant disease. (I) 0115 - Variants in this gene are known to have variable expressivity with inheritance from mildly affected or unaffected parents reported (PMID 35346573). (I) 0200 - Variant is predicted to result in a missense amino acid change from asparagine to aspartic acid. (I) 0251 - This variant is heterozygous. (I) 0301 - Variant is absent from gnomAD (both v2 and v3). (SP) 0501 - Missense variant consistently predicted to be damaging by multiple in silico tools or highly conserved with a major amino acid change. (SP) 0603 - Missense variant in a region that is highly intolerant to missense variation (high constraint region in DECIPHER). (SP) 0704 - Another missense variant comparable to the one identified in this case has limited previous evidence for pathogenicity. This alternative change (p.(Asn917Tyr)) has been reported as de novo in an individual with macrocephaly, dysmorphic features, congenital heart disease and intellectual disability (PMID: 32483341). (SP) 0807 - This variant has no previous evidence of pathogenicity. (I) 0905 - No published segregation evidence has been identified for this variant. (I) 1007 - No published functional evidence has been identified for this variant. (I) 1203 - This variant has been shown to be de novo in the proband (parental status confirmed, by trio analysis). (SP) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign

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