- 中文名称
OTUB1 一抗
- 英文名字
- OTUB1 Primary antibody
- 供应商
- Promab
- 产品货号
- PMB-P21785
- 产品报价
- ￥询价/100ul
- 产品说明书
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- 购买方式
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- 产品新闻
- 背景资料
- 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.
- 应用类型
- WB,IP
- 免疫原
- A synthetic peptide of human OTUB1
- 来源宿主
- Rabbit
- 反应性
- Human,Mouse,Rat
- 保存建议
- 4℃短期保存；-20℃长期保存。避免冻融循环。
- 其他
- ProMab 生物技术公司通过整合生物信息学、分子生物学、蛋白质表达、纯化技术、基因克隆、微生物学和免疫学，利用新型高通量技术开发重组蛋白、抗体和工程细胞系并将其商业化。专注于免疫治疗领域，特别是 CAR-T/NK 细胞技术。ProMab 还开发了一种新型的 mRNA 脂质纳米颗粒（mRNA-LNP）平台，用于即用型试剂和定制研究服务，以推进现有产品并扩展到更多的研究领域。
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