OTUB1 (Protein | Antibody | cDNA Clone | ELISA Kit)

All OTUB1 reagents are produced in house and quality controlled, including 1 OTUB1 Antibody, 30 OTUB1 Gene, 1 OTUB1 Protein, 2 OTUB1 qPCR. All OTUB1 reagents are ready to use.

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OTUB1 Background

Ubiquitin thioesterase OTUB1, also known as Deubiquitinating enzyme OTUB1, OTU domain-containing ubiquitin aldehyde-binding protein 1, Otubain-1, Ubiquitin-specific-processing protease OTUB1, OTUB1 and OTB1, is a cytoplasm protein which belongs to thepeptidase C65 family. OTUB1 is a hydrolase that can remove conjugated ubiquitin from proteins and plays an important regulatory role at the level of protein turnover by preventing degradation. OTUB1 is a 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. OTUB1 acts via its interaction with RNF128 / GRAIL, a crucial inductor of CD4 T-cell anergy. Isoform1 of OTUB1 destabilizes RNF128, leading to prevent anergy. In contrast, isoform2of OTUB1 stabilizes RNF128 and promotes anergy. OTUB1 regulates RNF128-mediated ubiquitination, but does not deubiquitinate polyubiquitinated RNF128. Deubiquitinates estrogen receptor alpha (ESR1). OTUB1 mediates deubiquitination of 'Lys-48'-linked polyubiquitin chains, but not 'Lys-63'-linked polyubiquitin chains. OTUB1 is also capable of removing NEDD8 from NEDD8 conjugates, but with a much lower preference compared to 'Lys-48'-linked ubiquitin.

OTUB1 References

  • Balakirev M.Y., et al., 2003, EMBO Rep. 4:517-522.
  • Soares L., et al., 2004, Nat. Immunol. 5:45-54.
  • Stanisic V., et al., 2009, J. Biol. Chem. 284:16135-16145.
  • Choudhary C., et al., 2009, Science 325:834-840.
  • Edelmann M.J., et al., 2009, Biochem. J. 418:379-390.