Clone/AB feature:

(#MAB0875)

Antibody generation:

This antibody was produced from a hybridoma (mouse myeloma fused with spleen cells from a rat immunized with purified mouse recombinant 4-1BB Ligand extracellular domain. The IgG2 fraction of the culture supernatant was purified by Protein A/G affinity chromatography.

Antigen:

BALB/c mouse B lymphoma cell line

Stability:

Lyophilized samples are stable for 2 years from date of receipt when stored at -70°C. Reconstituted antibody can be aliquoted and stored frozen at < -20 °C for at least for six months without detectable loss of activity.

Reconstitution:

Reconstitute the antibody with 500 µl sterile PBS and the final concentration is 200 µg/ml.

Description:

4-1BB ligand (4-1BBL) is a type II transmembrane glycoprotein belonging to the TNF superfamily (TNFSF) and has been designated TNFSF9. Mouse 4-1BBL cDNA encodes a 309 amino acid residues (aa) protein with an 82 aa Nterminal cytoplasmic domain, a 21 aa transmembrane domain and a 206 aa C terminal extracellular domain. The extracellular domain of 4-1BBL has a tertiary structure similar to that of other TNFSF members, but shares only low aa sequence homology (14-16%). Murine 4-1BBL shares 36% aa sequence identity with its human counterpart. 4-1BBL is predominantly expressed on activated antigen presenting cells (APCs) such as B cells, macrophages and dendritic cells (DCs). It is also expressed on most T and B lymphoma cell lines. A soluble 4-1BBL is released from the cell surface following cellular activation via proteolytic cleavage by one or more sheddases. By analogy to other TNFSF ligands, both the soluble and transmembrane 4-1BBL are expected to exist as noncovalent homotrimers. 4-1BBL binds 4-1BB, a TNF receptor superfamily member, TNFRSF9, which is also known as CD137 and ILA (induced by lymphocyte activation). 41BB is expressed on activated CD4+ and CD8+ T cells, thymocytes, and NK cells. It is also expressed on monocytes, neutrophils, DCs and eosinophils. In response to 4-1BBL binding, 4-1BB transduces a T cell costimulatory signal in both CD4+ and CD8+ T cells to promote survival and enhance proliferation, cytokine production and effector function. In dendritic cells, 4-1BB is a DC-activating molecule that enhances cytokine production and upregulates expression of B71 and B72 costimulatory molecules. Relia Tech类似于我们在大肠杆菌中的蛋白质表达服务，我们还提供了围绕昆虫细胞中基因和蛋白质表达（尤其是信号蛋白质）的模块化服务系统。ReliaTech的“杆状病毒表达服务（BVS）”分为一系列步骤，这些步骤可以单独执行或组合执行，因此您可以选择实际需要的步骤。这些服务旨在充分满足从基因表达到蛋白质纯化的所有特定需求-从通过重组杆状病毒构建，高滴度重组杆状病毒生产，重组蛋白批量生产以及最终蛋白质纯化的基因克隆到杆状病毒转移载体开始。所有步骤均在无血清培养基中进行，以确保安全性并产生高纯度的重组蛋白。除常规项目更新外，您还将在每个服务步骤的最后收到进度报告。我们将根据您的授权逐步指导您继续进行。