ClinVar Miner

Submissions for variant NM_004817.4(TJP2):c.2667+3A>G

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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 RCV002470294 SCV002767034 pathogenic Cholestasis, progressive familial intrahepatic, 4 2024-10-09 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: 0102 - Loss of function is a known mechanism of disease in this gene and is associated with cholestasis, progressive familial intrahepatic 4 (MIM#615878) and hypercholanaemia, familial (MIM#607748) (PMID: 24614073). (I) 0106 - This gene is associated with autosomal recessive disease. (I) 0115 - Variants in this gene are known to have variable expressivity in individuals with cholestasis (PMID: 32089630). (I) 0210 - Splice site variant proven to affect splicing of the transcript with a known effect on protein sequence. RNA studies performed on this individual's sample demonstrated two splicing outcomes. Both the intron 18 retention (small increase compared to controls) and use of a cryptic donor site within exon 18, (marked increment compared to controls) leads to a protein product that is expected to undergo nonsense-mediated decay (NMD) p.(Met890Valfs*9). (SP) 0252 - This variant is homozygous. (I) 0304 - Variant is present in gnomAD (v3) <0.01 for a recessive condition (1 heterozygote, 0 homozygotes). (SP) 0701 - Other NMD-predicted variants comparable to the one identified in this case have very strong previous evidence for pathogenicity (DECIPHER). (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) 1102 - Strong phenotype match for this individual. (SP) 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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