Prospec蚂蚁淘在线

4-1BBL is a transmembrane cytokine that is part of the tumor necrosis factor (TNF) ligand family. 4-1BBL is a bidirectional signal transducer that performs as a ligand for TNFRSF9, which is a costimulatory receptor molecule in T lymphocytes. TNFSF9 and its TNFRSF9 take part in the antigen presentation development and in the generation of cytotoxic T cells. 4-1BBR is absent from resting T lymphocytes but rapidly expressed upon antigenic stimulation. TNFSF9 reactivates anergic T lymphocytes as well as promoting T lymphocyte proliferation. 4-1BB Ligand is needed for the optimal CD8 responses in CD8 T cells. 4-1BBL is expressed in carcinoma cell lines, and is thought to be involved in T cell-tumor cell interaction. 4-1BBL is expressed by activated B cells, macrophages, dendritic cells, activated T cells, neurons and astrocytes. The interaction of 4-1BB with TNFRSF9 strongly regulates immunity and has been proposed to preferentially control T cell responses based on studies in various murin.

Description

4 1BBL Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 184 amino acids and having a molecular mass of 19.5kDa.The 4 1BBL is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Physical Appearance

Sterile Filtered White lyophilized (freeze-dried) powder.

Formulation

Lyophilized from a 0.2µm filtered concentrated solution in PBS, pH 7.4.

Solubility

It is recommended to reconstitute the lyophilized 4 1BBL in sterile 18M-cm H₂O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

Stability

Lyophilized 4 1BBL although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution 4 1BBL should be stored at 4°C between 2-7 days and for future use below -18°C.Please prevent freeze-thaw cycles.

Purity

Greater than 95.0% as determined by SDS-PAGE.

Amino acid sequence

REGPELSPDD PAGLLDLRQG MFAQLVAQNV LLIDGPLSWY SDPGLAGVSL TGGLSYKEDT KELVVAKAGV YYVFFQLELR RVVAGEGSGS VSLALHLQPL RSAAGAAALA LTVDLPPASS EARNSAFGFQ GRLLHLSAGQ RLGVHLHTEA RARHAWQLTQ GATVLGLFRV TPEIPAGLPS PRSE

Biological Activity

Fully biologically active when compared to standard. Determined by the dose-dependent stimulation of IL-8 production by human PBMC. The ED50 for this effect is 5-10ng/ml corresponding to a Specific Activity of 100,000-200,000IU/mg.

Safety Data Sheet

SDS

Usage

ProSpec"s products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

ProSpec是全球著名细胞因子蛋白及相关抗体生产和研发品牌，专注于蛋白生产研发，独有细菌和哺乳动物表达和蛋白折叠技术。目前可提供细胞因子、生长因子、激素、信号蛋白、病毒抗原等近800种重组蛋白和100多种抗体。 ProSpec is an evolving biotech company providing highly purified proteins worldwide which serve the research community with cytokine-related products for cancer, apoptosis, development, endocrinology, immunology, neuroscience, proteases, and stem cell research. Among our proteins are Interferons, Interleukins, Bone Morphogenic Proteins, Tumor Necrosis factors, Leptins, Stem Cell factors, Prolactins, Chemokines, Antibodies, Peptides, Enzymes, Viral Antigens, various growth factors such as: Platelet Derived, Epidermal, Insulin Like, Nerve, Connective Tissue, Vascular Endothelial, Fibroblast and more..... 产品列表： No. 品牌货号名称规格 1 ProSpec PRO-1574 BCL2 Human 5µg 2 ProSpec CYT-1075 IFNA7 Human, Sf9 2µg 3 ProSpec CHM-328 Rantes Human 5µg 4 ProSpec CHM-330 IP 10 Human 5µg 5 ProSpec CYT-575 MIF Human 5µg 6 ProSpec CYT-538 GH Antagonist Chicken 20µg 7 ProSpec CYT-1043 TNFRSF10A Human 2µg 8 ProSpec PRO-2390 CD2 Human, Sf9 2µg 9 ProSpec PRO-2237 CD47 Human 2µg 10 ProSpec CYT-581 Beta NGF Mouse 5µg 11 ProSpec CYT-973 NRP1 Rat 1µg 12 ProSpec HOR-253 FSH Human 2µg 13 ProSpec HOR-275 Thymosin beta 4 1mg 14 ProSpec DEN-005 Dengue Envelope-1 22kDa 100µg 15 ProSpec HEV-235 HEV Mosaic 100µg

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