重組人可溶性CD40配體/TRAP (rHusCD40L/TRAP)
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- 更新時間: 2024-05-23
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產品介紹
CYT-245 | 重組人可溶性CD40配體/TRAP (rHusCD40L/TRAP) | 10μg/50μg/1mg | Prospec |
Background: | |
CD40L or CD154 is a membrane glycoprotein and differentiation antigen expressed on the surface of T-cells. The CD40 ligand stimulates B-cell proliferation and secretion of all immunoglobulin isotypes in the presence of cytokines . CD40 ligand has been shown to induce cytokine production and tumoricidal activity in peripheral blood monocytes. It also costimulates proliferation of activated T-cells and this is accompanied by the production of IFN-gamma , TNF-alpha , and IL2 . | |
Description : | |
Recombinant Human CD40L produced in E.Coli is a non-glycosylated, Polypeptide chain containing 149 amino acids and having a molecular mass of 16308 Dalton. Recombinant CD40L is purified by proprietary chromatographic techniques. | |
Physical Appearance: | |
Sterile Filtered White lyophilized (freeze-dried) powder. | |
Formulation: | |
CD40L is lyophilized from a sterile concentrated solution (1mg/ml) with 10mM Sodium Phosphate pH=7.5. | |
Solubility: | |
It is recommended to reconstitute the lyophilized CD40L in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions. | |
Stability: | |
Lyophilized CD40L although stable at room temperature for 3 weeks, should be stored desiccated below -18 C. Upon reconstitution CD40L should be stored at 4 C between 2-7 days and for future use below -18 C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles. | |
Purity: | |
Greater than 98.0% as determined by: (a) Analysis by RP-HPLC. (b) Anion-exchange FPLC. (c) Analysis by reducing and non-reducing SDS-PAGE Silver Stained gel. | |
Amino acid sequence: | |
The sequence of the first five N-terminal amino acids was determined and was found to be Met-Gln-Lys-Gly-Asp. | |
Dimers and aggregates: | |
Less than 1% as determined by silver-stained SDS-PAGE gel analysis. | |
Biological Activity: | |
ProSpec's CD40L is fully biologically active when compared to standard. The ED50 as determined by the dose-dependant stimulation of IL-12 & IL-8 induction by PMB (Peripheral Mononuclear) cells was found to be 5-10 ng/ml. | |
Endotoxin: | |
Less than 0.1 ng/µg (IEU/µg) of soluble CD40L. | |
Protein content: | |
Protein quantitation was carried out by two independent methods: 1. UV spectroscopy at 280 nm using the absorbency value of 1.1 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (InliGenetics). 2. Analysis by RP-HPLC, using a standard solution of soluble CD40L as a Reference Standard. | |
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. |
佰易聚生物商城提供美國光譜醫學透析袋,wako生化試劑,amresco生化試劑,sigma生化試劑,優質的分子生物學試劑和試劑盒、培養基本和培養耗材、細胞因子和細胞分離液、抗體和elisa試劑盒及常用生物試劑等,大量現貨火爆*,歡迎登錄 www.ebioeasy.com或者,,洽談選購!
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