• Product nameAnti-OTUB1 antibody
    See all OTUB1 primary antibodies
  • Description
    Rabbit polyclonal to OTUB1
  • Tested applicationsSuitable for: WBmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Horse, Chicken, Guinea pig, Cow, Cat, Dog, Zebrafish
  • Immunogen

    Synthetic peptide corresponding to a region within internal sequence amino acids 71-120 (KIKDLHKKYS YIRKTRPDGN CFYRAFGFSH LEALLDDSKE LQRFKAVSAK) of Human OTUB1 (NP_060140).

  • Positive control
    • HepG2 cell lysate


Associated products


Our Abpromise guarantee covers the use of ab98280 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use a concentration of 1 µg/ml. Predicted molecular weight: 31 kDa. Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.


  • FunctionHydrolase that can remove 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 nuch lower preference compared to 'Lys-48'-linked ubiquitin.
  • Tissue specificityIsoform 1 is ubiquitous. Isoform 2 is expressed only in lymphoid tissues such as tonsils, lymph nodes and spleen, as well as peripheral blood mononuclear cells.
  • Sequence similaritiesBelongs to the peptidase C65 family.
    Contains 1 OTU domain.
  • DomainIn addition to ubiquitin-binding at the Cys-91 active site, a proximal ubiquitin-binding site is also present at Cys-23 Occupancy of the active site is needed to enable tight binding to the second site. Distinct binding sites for the ubiquitins may allow to discriminate among different isopeptide linkages (i.e. 'Lys-48'-, 'Lys-63'-linked polyubiquitin) in polyubiquitin substrates and achieve linkage-specific deubiquitination.
  • Cellular localizationCytoplasm.
  • Information by UniProt
  • Database links
  • Alternative names
    • 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
    see all

Anti-OTUB1 antibody images

  • Anti-OTUB1 antibody (ab98280) at 1 µg/ml + HepG2 cell lysate at 10 µg

    Predicted band size : 31 kDa

References for Anti-OTUB1 antibody (ab98280)

This product has been referenced in:
  • Saxena R  et al. Proteomic profiling of SupT1 cells reveal modulation of host proteins by HIV-1 Nef variants. PLoS One 10:e0122994 (2015). WB ; Human . Read more (PubMed: 25874870) »

See 1 Publication for this product

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