OTUB1 Antibody

OTUB1

Deubiquitinating enzyme OTUB1 antibody; hOTU1 antibody; HSPC263 antibody; OTB1 antibody; OTU domain containing ubiquitin aldehyde binding protein 1 antibody; OTU domain, ubiquitin aldehyde binding 1 antibody; OTU domain-containing Ubal-binding protein 1 antibody; OTU domain-containing ubiquitin aldehyde-binding protein 1 antibody; OTU-domain Ubal-binding 1 antibody; OTU1 antibody; Otub1 antibody; OTUB1_HUMAN antibody; Otubain 1 antibody; Otubain-1 antibody; Ubiquitin specific processing protease OTUB1 antibody; Ubiquitin thioesterase OTUB1 antibody; ubiquitin-specific protease otubain 1 antibody; Ubiquitin-specific-processing protease OTUB1 antibody

Recombinant Human Ubiquitin thioesterase OTUB1 protein (2-201AA)

Hydrolase that can specifically remove 'Lys-48'-linked conjugated ubiquitin from proteins and plays an important regulatory role at the level of protein turnover by preventing degradation. Regulator of T-cell anergy, a phenomenon that occurs when T-cells are rendered unresponsive to antigen rechallenge and no longer respond to their cognate antigen. Acts via its interaction with RNF128/GRAIL, a crucial inductor of CD4 T-cell anergy. Isoform 1 destabilizes RNF128, leading to prevent anergy. In contrast, isoform 2 stabilizes RNF128 and promotes anergy. Surprisingly, it regulates RNF128-mediated ubiquitination, but does not deubiquitinate polyubiquitinated RNF128. Deubiquitinates estrogen receptor alpha (ESR1). Mediates deubiquitination of 'Lys-48'-linked polyubiquitin chains, but not 'Lys-63'-linked polyubiquitin chains. Not able to cleave di-ubiquitin. Also capable of removing NEDD8 from NEDD8 conjugates, but with a much lower preference compared to 'Lys-48'-linked ubiquitin. Plays a key non-catalytic role in DNA repair regulation by inhibiting activity of RNF168, an E3 ubiquitin-protein ligase that promotes accumulation of 'Lys-63'-linked histone H2A and H2AX at DNA damage sites. Inhibits RNF168 independently of ubiquitin thioesterase activity by binding and inhibiting UBE2N/UBC13, the E2 partner of RNF168, thereby limiting spreading of 'Lys-63'-linked histone H2A and H2AX marks. Inhibition occurs by binding to free ubiquitin: free ubiquitin acts as an allosteric regulator that increases affinity for UBE2N/UBC13 and disrupts interaction with UBE2V1. The OTUB1-UBE2N/UBC13-free ubiquitin complex adopts a configuration that mimics a cleaved 'Lys48'-linked di-ubiquitin chain.

>95%, Protein G purified

Epigenetics and Nuclear Signaling

Recombinant Human Ubiquitin thioesterase OTUB1 protein (2-201AA)