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Retinal disorders v2.248 PEX6 Sarah Leigh edited their review of gene: PEX6: Added comment: For Peroxisome biogenesis disorder 4B (OMIM:614863), Falkenberg et al (PMID: 29220678) has identified Allelic Expression Imbalance (AEI) as a mechanism responsible for the condition. Affected patients (7 unrelated cases) were monoallelic for rs61753230 (c.2578C>T, p.Arg860Trp) and rs144286892 (c.∗442_445 delTAAA), with these variants being on the same chromosome (cis). It would appear that rs144286892 causes the over expression of the allele that it is on, resulting in over expression of rs61753230. The unaffected parents analysed were monoallelic for rs61753230 and biallelic for rs144286892, resulting in overexpression of both rs61753230 and wild type alleles (PMID: 29220678). Experimental evidence revealed that rs61753230 has a dominant-negative effect on the function of the PEX1- PEX6 complex in peroxisomal matrix protein import (PMID: 29220678).; Changed mode of pathogenicity: Other; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Retinal disorders v1.159 RS1 Gavin Arno reviewed gene: RS1: Rating: GREEN; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance:
Retinal disorders v1.137 RS1 Ivone Leong Source NHS GMS was added to RS1.
Rating Changed from Green List (high evidence) to Green List (high evidence)