With monoubiquitination sites of Rab5 identified and structural and biochemical studies using chemically synthesized ubiquitinated Rab5, Rab5 monoubiquitination is found to downregulate the function of Rab5 in a site-dependent manner.
E3 ubiquitin ligase Bre1-induced H2B monoubiquitination is epigenetically important for recruiting replication factor Mcm10 and cohesion establishment factors Ctf4, Ctf18 and Eco1 to early replication origins to establish sister chromatid cohesion.
Bilallelic mutations of FANCM, a DNA-damage response gene whose heterozygous mutations predispose to breast cancer, are involved in a familial case of Primary Ovarian Insufficiency establishing a link between infertility and cancer.
Yersinia pseudotuberculosis and enteropathogenic Escherichia coli promote pathogenicity by deamidating the ubiquitin-like protein NEDD8 to block ubiquitin-dependent trafficking of Perforin-2, which is an effector of innate immunity.
The histone chaperone FACT and the deubiquitinating enzyme Ubp10 act in concert to remove ubiquitin from histone H2B in nucleosomes, and likely coordinate nucleosome assembly during DNA replication and transcription.