Rabbit OTUB1 Polyclonal Antibody | anti-OTUB1 antibody

OTUB1 Rabbit pAb

Cat. Num. AAA4752140

• Gene Names: OTUB1; OTB1; OTU1; HSPC263
• Reactivity: Human, Mouse, Rat
• Applications: Western Blot, Immunoprecipitation
• Purity: Affinity purified
• Synonyms: OTUB1; Polyclonal Antibody; OTUB1 Rabbit pAb; Ubiquitin thioesterase OTUB1; OTB1; OTU1; HSPC263; anti-OTUB1 antibody

• Host: Rabbit
• Reactivity: Human, Mouse, Rat
• Clonality: Polyclonal
• Isotype: Rabbit IgG
• Specificity: Isoform 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.
• Purity/Purification: Affinity purified
• Form/Format: Supplied in 50nM Tris-Glycine (pH7.4), 0.15M Nacl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.

• Applicable Applications for anti-OTUB1 antibody: Western Blot (WB), Immunoprecipitation (IP)
• Application Notes: WB: 1:2000; IP: 1:20
• Immunogen: A synthetic peptide of human OTUB1
• Conjugation: Unconjugated
• Modification: Unmodification
• Subcellular Location: Cytoplasm
• Preparation and Storage: Store at -20 degree C. Stable for 12 months from date of receipt.

Western Blot (WB)

(Western blot detection of OTUB1 in K562,Rat Brain,C6,3T3,Hela cell lysates using OTUB1 Rabbit pAb(1:1000 diluted). Predicted band size:31kDa. Observed band size:31kDa.)

Related Product Information for anti-OTUB1 antibody

The product of this gene is a member of the OTU (ovarian tumor) superfamily of predicted cysteine proteases. The encoded protein is a highly specific ubiquitin iso-peptidase, and cleaves ubiquitin from branched poly-ubiquitin chains but not from ubiquitinated substrates. It interacts with another ubiquitin protease and an E3 ubiquitin ligase that inhibits cytokine gene transcription in the immune system. It is proposed to function in specific ubiquitin-dependent pathways, possibly by providing an editing function for polyubiquitin chain growth. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]
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.MiscellaneousIn the structure described by PubMed:18954305, the His-265 active site of the catalytic triad is located too far to interact directly with the active site Cys-91. A possible explanation is that OTUB1 is in inactive conformation in absence of ubiquitin and a conformation change may move His-265 in the proximity of Cys-91 in presence of ubiquitin substrate.

NCBI and Uniprot Product Information

• NCBI GI #: 109148508
• NCBI GeneID: 55611
• NCBI Accession #: NP_060140.2
• NCBI GenBank Nucleotide #: NM_017670.2
• UniProt Accession #: Q96FW1; Q32Q78; Q96II3; Q9NXQ4; Q9P0B8
• Molecular Weight: 35,285 Da
• NCBI Official Full Name: ubiquitin thioesterase OTUB1
• NCBI Official Synonym Full Names: OTU deubiquitinase, ubiquitin aldehyde binding 1
• NCBI Official Symbol: OTUB1
• NCBI Official Synonym Symbols: OTB1; OTU1; HSPC263
• NCBI Protein Information: ubiquitin thioesterase OTUB1; OTU domain, ubiquitin aldehyde binding 1; OTU domain-containing ubiquitin aldehyde-binding protein 1; OTU-domain Ubal-binding 1; deubiquitinating enzyme OTUB1; otubain-1; ubiquitin-specific protease otubain 1; ubiquitin-speci
• UniProt Protein Name: Ubiquitin thioesterase OTUB1
• Protein Family: Ubiquitin thioesterase
• UniProt Gene Name: OTUB1
• UniProt Synonym Gene Names: OTB1; OTU1; hOTU1
• UniProt Entry Name: OTUB1_HUMAN

NCBI Description

The product of this gene is a member of the OTU (ovarian tumor) superfamily of predicted cysteine proteases. The encoded protein is a highly specific ubiquitin iso-peptidase, and cleaves ubiquitin from branched poly-ubiquitin chains but not from ubiquitinated substrates. It interacts with another ubiquitin protease and an E3 ubiquitin ligase that inhibits cytokine gene transcription in the immune system. It is proposed to function in specific ubiquitin-dependent pathways, possibly by providing an editing function for polyubiquitin chain growth. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]

Uniprot Description

OTUB1: a protease that can remove conjugated ubiquitin from proteins in vitro and may therefore play an important regulatory role at the level of protein turnover by preventing degradation. Regulator of T-cell anergy, a phenomenon that occur when T-cell 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. Two alternatively spliced isoforms are known.

Protein type: Ubiquitin-specific protease; EC 3.4.19.12; Protease; Ubiquitin conjugating system

Chromosomal Location of Human Ortholog: 11q13.1

Cellular Component: cytoplasm

Molecular Function: protein binding; ubiquitin binding; ubiquitin protein ligase binding; ubiquitin-specific protease activity; NEDD8-specific protease activity

Biological Process: immune system process; proteolysis; DNA repair; response to DNA damage stimulus