级别和纯度: 无载体?无载体(Carrier Free)—— 不含添加的载体蛋白/稳定剂。当载体(如 BSA)会干扰偶联或敏感检测时使用。His标签?组氨酸(His) 标签级 —— 带有 His 标签的重组蛋白,供亲和纯化/检测。用于纯化、固定或检测带标签蛋白。≥90%(SDS-PAGE)expressed in E. coli, 见 COA
无载体,His标签,≥90%(SDS-PAGE),expressed in E. coli, 见 COA
生化机理
The proteasome is a multicatalytic proteinase complex with a highly assembled ring-shaped 20S core structure which is composed of 4 rings of 28 non-identical subunits, 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. Proteasomes are found throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. PSMA7 is part of the peptidase T1A family, that is a 20S core alpha subunit. PSMA7 interacts particularly with the hepatitis B virus X protein, a protein critical to viral replication. PSMA7 is involved in regulating hepatitis virus C internal ribosome entry site activity that is crucial for viral replication. PSMA7 is in charge for regulating the hypoxia-inducible factor-1alpha, a transcription factor important for cellular responses to oxygen tension. PSMA7 is characterized by its ability to cleave peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group at neutral or slightly basic pH. PSMA7 interacts specifically with two subdomains of HIF-1alpha and inhibited the transactivation function of HIF-1alpha under both normoxic and hypoxia-mimicking conditions.
Post-translational: Phosphorylation by ABL1 or ABL2 leads to an inhibition of proteasomal activity and cell cycle transition blocks.
27.8 kDa, under reducing conditions; 28.3 & 59.2 kDa, under non-reducing conditions.
分子类型
蛋白质
产品线
生物产品
储存与运输
物理形态
液体
储存缓冲液
20mM Tris, 100mM NaCl, 20% Glycerol, pH 8.0
浓度
expressed in E. coli, 见 COA
储存条件
-20°C储存,避免反复冻融
运输条件
超低温运输
稳定性与储存
-20℃(12个月);收货后建议分装,避免反复冻融。
图片
Recombinant Human PSMA7 Protein (rp192159) - SDS-PAGE
3 μg/lane of Recombinant Human PSMA7 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing the bands at 27.8 kDa under reducing conditions and 28.3 & 59.2 kDa under non-reducing conditions.
PSMA7 is a component of the 20S core proteasome complex. In its native structure, PSMA7 forms a ring-shaped heptamer with other α-subunits and interacts with the β-subunit ring. Even when expressed alone, its surface retains evolutionarily conserved protein-protein interaction interfaces. This inherent association tendency readily leads to the formation of dimers (Uniprot ID: O14818).