产品: OTUB1 抗体
货号: DF9998
描述: Rabbit polyclonal antibody to OTUB1
应用: WB IHC IF/ICC
反应: Human, Mouse, Rat
预测: Pig, Bovine, Horse, Sheep, Dog, Chicken
分子量: 31 kDa; 31kD(Calculated).
蛋白号: Q96FW1
RRID: AB_2843190

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   规格 价格 库存
 100ul RMB¥ 2300 现货
 200ul RMB¥ 3000 现货

货期: 当天发货

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产品描述

来源:
Rabbit
应用:
WB 1:1000-3000, IHC 1:50-1:200, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.
*Tips:

WB: 适用于变性蛋白样本的免疫印迹检测. IHC: 适用于组织样本的石蜡(IHC-p)或冰冻(IHC-f)切片样本的免疫组化/荧光检测. IF/ICC: 适用于细胞样本的荧光检测. ELISA(peptide): 适用于抗原肽的ELISA检测.

反应:
Human,Mouse,Rat
预测:
Pig(100%), Bovine(100%), Horse(100%), Sheep(100%), Dog(100%), Chicken(92%)
克隆:
Polyclonal
特异性:
OTUB1 Antibody detects endogenous levels of total OTUB1.
RRID:
AB_2843190
引用格式: Affinity Biosciences Cat# DF9998, RRID:AB_2843190.
偶联:
Unconjugated.
纯化:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
保存:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
别名:

展开/折叠

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

抗原和靶标

免疫原:
Uniprot:
基因/基因ID:
表达:
Q96FW1 OTUB1_HUMAN:

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.

序列:
MAAEEPQQQKQEPLGSDSEGVNCLAYDEAIMAQQDRIQQEIAVQNPLVSERLELSVLYKEYAEDDNIYQQKIKDLHKKYSYIRKTRPDGNCFYRAFGFSHLEALLDDSKELQRFKAVSAKSKEDLVSQGFTEFTIEDFHNTFMDLIEQVEKQTSVADLLASFNDQSTSDYLVVYLRLLTSGYLQRESKFFEHFIEGGRTVKEFCQQEVEPMCKESDHIHIIALAQALSVSIQVEYMDRGEGGTTNPHIFPEGSEPKVYLLYRPGHYDILYK

种属预测

种属预测:

score>80的预测可信度较高,可尝试用于WB检测。*预测模型主要基于免疫原序列比对,结果仅作参考,不作为质保凭据。

Species
Results
Score
Pig
100
Horse
100
Bovine
100
Sheep
100
Dog
100
Chicken
92
Xenopus
64
Zebrafish
0
Rabbit
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

翻译修饰 - Q96FW1 作为底物

Site PTM Type Enzyme
A2 Acetylation
S16 Phosphorylation P68400 (CSNK2A1)
S18 Phosphorylation P36897 (TGFBR1)
Y26 Phosphorylation
S55 Phosphorylation
K59 Ubiquitination
Y68 Phosphorylation
K71 Ubiquitination
K73 Ubiquitination
K84 Ubiquitination
C91 S-Nitrosylation
S108 Phosphorylation
K109 Ubiquitination
S161 Phosphorylation
Y174 Phosphorylation
K188 Acetylation
K188 Sumoylation
K188 Ubiquitination
K201 Ubiquitination

研究背景

功能:

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.

细胞定位:

Cytoplasm.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
组织特异性:

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.

亚基结构:

Isoform 1 and isoform 2 interact with RNF128. Isoform 1 forms a ternary complex with RNF128 and USP8. Isoform 1 interacts with the C-terminal UCH catalytic domain of USP8. Isoform 2 does not associate with USP8. Interacts with FUS, ESR1 and RACK1. Interacts with UBE2N/UBC13.

蛋白家族:

In 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.

Belongs to the peptidase C65 family.

文献引用

1). OTUB1 promotes progression and proliferation of prostate cancer via deubiquitinating and stabling cyclin E1. Frontiers in Cell and Developmental Biology, 2021 (PubMed: 33537306) [IF=5.5]

Application: WB    Species: Mice    Sample: PC3 and C4-2 cells

Figure 4 OTUB1 promotes and regulates the expression of Cyclin E1. (A) The relationship between OTUB1 and Cyclin E1 was analyzed via gene MANIA database. (B) The protein expression of Cyclin E1 in BPH, ADPC, and CRPC was detected by IHC staining. (C) Western blotting detecting the expression of Cyclin E1 in PC3 and C4-2 cells transfected with otub1 overexpression and otub1 c91s. (D) Western blotting detecting the expression of Cyclin E1 in PC3 and C4-2 cells transfected with OTUB1 siRNA. (E) Western blotting detecting the expression of Cyclin E1 in PC3 and C4-2 cells transfected with an increasing gradient OTUB1.

Application: IHC    Species: Mice    Sample: tumors

Figure 7 OTUB1 promotes the growth of PC3 cell via increasing Cyclin E1 in vivo. (A,B) PC3 cells transfected with OTUB1 overexpression and otub1 c91s were transplanted subcutaneously in nude mice. The effect of otub1 overexpression, otub1 c91s, and RO-3306 on the growth of PCa. (C) The tumor volume was measured with a caliper. (D) The tumor volumes were measured daily when the diameter grew into 2 mm. (E) IHC staining detecting the expression of OTUB1, ki-67, and Cyclin E1 in these tumors from nude mice. ****P < 0.0001.

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