计算溶液所需的质量、体积或浓度。
BioReagent,用于蛋白分析 级 提供 ≥95%(WB) 纯度,适用于对基线干扰要求严格的色谱和分析工作流程。
-80℃储存,避免反复冻融。特低温运输 。请查阅批次 COA 获取详细规格。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
多聚泛素化是一种翻译后修饰,可调控蛋白质稳定性及蛋白质 - 蛋白质相互作用。多聚泛素链的连接类型决定了被修饰蛋白的命运。通过K63位连接的多聚泛素化近来成为研究热点。值得注意的是,该连接方式的拓扑结构及其在细胞过程中的作用,与K48位连接的泛素链存在显著差异。K63位连接的多聚泛素主要参与内吞运输、DNA 修复、神经退行性疾病等多种通路。
本研究中的四聚泛素链通过酶促反应,由野生型泛素经K63位连接形成。其最远端的泛素分子在63位赖氨酸发生赖氨酸-精氨酸取代,从而限制了链的进一步延伸。
该构建体可作为有效底物,用于鉴定和表征切割K63位连接的去泛素化酶 (DUBs),也适用于涉及泛素相关结构域 (UBA)或泛素相互作用基序 (UIMs)的结构与结合研究。
应用
去泛素化酶 (DUB)连接特异性研究
产品信息
1、物种:人
2、来源:大肠杆菌
3、标签:无
4、纯度:>95% (Western blot)
5、分子量:34,233.4 Da
6、物理状态:液体
7、缓冲液:20 mM Tris-HCl,pH 7.5,0.15 M NaCl,1 mM EDTA
8、数量:25 μg
9、溶解度:>1 mg/mL
10、储存条件:-80℃ 保存。避免反复冻融。
Western blot分析

RP-HPLC图谱

Polyubiquitylation is a post-translational modification that regulates protein stability and protein-protein interactions. The type of polyubiquitin linkage determines the fate of the modified protein (s). Polyubiquitylation through K63 linkages has recently become the focus of intense study. Notably, the topology of this linkage and its role in cellular processes differ significantly from those of K48-linked chains. K63-linked polyubiquitin appears to function in endocytic trafficking, DNA repair, neurodegeneration, and other pathways.
These tetra-ubiquitin chains are generated by enzymatically linking wild-type ubiquitin through lysine 63. The most distal ubiquitin contains a lysine-to-arginine substitution at position 63, limiting further chain extension.
This construct is a useful substrate for identifying and characterizing deubiquitinating enzymes (DUBs) that cleave K63 linkages, and for structural and binding studies involving ubiquitin-associated domains (UBA) or ubiquitin-interacting motifs (UIMs).
Application
Investigation of DUB linkage specificity
1. Species: Human
2. Source: E. coli
3. Tag: None
4. Purity:≥ 95% by Western blot analysis
5. Molecular Weight: 34,233.4 Da
6. Physical State: Liquid
7. Buffer: 20 mM Tris-HCl, pH 7.5, 0.15 M NaCl, 1 mM EDTA
8. Quantity: 25 μg
9. Solubility: >1 mg/mL
10. Storage: -80℃. Avoid repeated freeze/thaw cycles.
Western blot analysis

RP-HPLC Profile
