ClinVar Miner

Submissions for variant NM_004380.3(CREBBP):c.4337G>A (p.Arg1446His)

dbSNP: rs1057519884
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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 RCV004594056 SCV005086635 likely pathogenic Rubinstein-Taybi syndrome due to CREBBP mutations 2023-07-17 criteria provided, single submitter clinical testing Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Likely Pathogenic. Following criteria are met: 0102 - Loss of function is a known mechanism of disease in this gene and is associated with Menke-Hennekam syndrome 1 (MIM#618332) and Rubinstein-Taybi syndrome 1 (MIM#180849). (I) 0107 - This gene is associated with autosomal dominant disease. (I) 0200 - Variant is predicted to result in a missense amino acid change from arginine to histidine. (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) 0601 - Variant is located in the well-established functional p.(Arg1446) residue. Functional studies have proven that changes to leucine, cysteine and glycine result in reduced histone acetylation (PMID: 29551561. PMID: 28970362). (SP) 0703 - Another missense variant comparable to the one identified in this case has moderate previous evidence for pathogenicity. This alternative change (p.(Arg1446Cys) has been reported as a VUS, but more recently as likely pathogenic and pathogenic, and identified as de novo in a fetus with features including polydactyly, small cerebellum and cardiac anamolies (ClinVar, LOVD). Additional changes to leucine and glycine are reported, but neither in the germline context. (SP) 0807 - This variant has no previous evidence of pathogenicity. However, this variant has been reported repeatedly as a somatic variant in cancer studies (ClinVar). (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) 1208 - Inheritance information for this variant is not currently available in this individual. (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign

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