OTUB1 Antibody | CSB-PA03595A0Rb

OTUB1 Antibody | CSB-PA03595A0Rb | Cusabio

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Product Type: Polyclonal Antibody

Target Names: OTUB1

Aliases: Ubiquitin thioesterase OTUB1 (EC 3.4.19.12) (Deubiquitinating enzyme OTUB1) (OTU domain-containing ubiquitin aldehyde-binding protein 1) (Otubain-1) (hOTU1) (Ubiquitin-specific-processing protease OTUB1), OTUB1, OTB1 OTU1

Background: 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.

Isotype: IgG

Conjugate: Non-conjugated

Clonality: Polyclonal

Uniport ID: Q96FW1

Host Species: Rabbit

Species Reactivity: Human

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

Immunogen Species: Human

Applications: ELISA, WB, IHC

Tested Applications: ELISA, WB, IHC; Recommended dilution: WB:1:1000-1:5000, IHC:1:20-1:200

Purification Method: >95%, Protein G purified

Dilution Ratio1: ELISA:1:2000-1:10000

Dilution Ratio2: WB:1:1000-1:5000

Dilution Ratio3: IHC:1:20-1:200

Dilution Ratio4:

Dilution Ratio5:

Dilution Ratio6:

Buffer: Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, PH 7.4

Form: Liquid

Storage: Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.

Initial Research Areas: Epigenetics and Nuclear Signaling

Research Areas: Epigenetics & Nuclear Signaling;Cell biology