RBCK1

[6] Although HOIL-1 isn’t responsible for the linear ubiquitin generation, it is a necessary component of LUBAC and ensures its proper assembly and function.

[8] Additionally, a catalytically inactive mutant of HOIL-1 (HOIL-1C458S) led to prolonged IKK activation and increase of inflammatory cytokine production by cytotoxic T cells.

[9] A family quartet was found with two children, both affected with a previously unreported disease, characterized by progressive muscular weakness and cardiomyopathy, with normal intelligence.

Sanger sequencing identified a private homozygous splice variant in RBCK1 in the proband in the second family, yet single-nucleotide polymorphism (SNP) genotyping revealed a 1.2Mb copy-neutral region of homozygosity covering RBCK1.

RNA-Seq confirmed aberrant splicing of RBCK1 transcripts, resulting in truncated protein products.