| Description | Purity ≥85% (SDS-PAGE)Product introduction1. Induced complement deficiency animal model, CVF has been used for complement deficiency model preparation in various animals (mice, rats, guinea pigs, sheep, etc.). Or it can be used to treat various disease animal models to study the role of the Purity ≥85% (SDS-PAGE)Product introduction1. Induced complement deficiency animal model, CVF has been used for complement deficiency model preparation in various animals (mice, rats, guinea pigs, sheep, etc.). Or it can be used to treat various disease animal models to study the role of the complement system in the pathogenesis of disease. 2. Use CVF to bind to tumor-associated antigen monoclonal antibody to selectively kill and destroy tumors. CVF monoclonal antibody can promote the specific uptake of anti-tumor embryonic antigen antibodies by tumor cells, and different CVF monoclonal antibody conjugates have different cytotoxicity to human neuroblastoma. 3. Inhibiting the complement system to overcome xenograft-induced rejection and acute vascular rejection Multiple studies have shown that CVF can effectively inhibit ultra-acute rejection and prolong the survival time of the host. FunctionCobra Venom Factor (CVF), sometimes referred to as C3b(Cobra), is the non-toxic, complement activating component of cobra venom. 1-3 Like naturally occurring C3b, CVF forms a complex with complement components Factor B and Factor D. This CVFBbD convertase is capable of activating C3 in a wide variety of species via the alternative complement pathway. Unlike the naturally occurring convertase (C3bBbD), the C3b(Cobra)BbD convertase is Factor H resistant and is therefore not inactivated by Factor I or CR1. Given appropriate incubation time, CVF will convert nearly 100% of the C3 to C3 end products. Unlike CVF purified from the Naja naja haje species, CVF from Naja naja kaouthia activates the terminal pathway directly by forming a C5 convertase. 4,5 This depletes C5 in a manner analogous to that described above for C3. Levels of iC3b, C3a, SC5b-9, C5a and the Factor B cleavage product Bb are all extremely high in CVF treated sera... Read More | Biochemical Test:SDS-PAGE (purity > 80%); Western blot with patient sample.Calculated Isoelectric Point:pH 5.68 | SHP2 protein degrader-2 (SHP2-D26) is a SHP2 protein PROTAC degrader. SHP2 protein degrader-2 reduces expression level of SHP2 in various cancer cells.In VitroSHP2 protein degrader-2 (SHP2-D26) achieves excellent degradation of SHP2 with the DC 50 (the concentration where 50% of the protein has beenSHP2 protein degrader-2 (SHP2-D26) is a SHP2 protein PROTAC degrader. SHP2 protein degrader-2 reduces expression level of SHP2 in various cancer cells.In VitroSHP2 protein degrader-2 (SHP2-D26) achieves excellent degradation of SHP2 with the DC 50 (the concentration where 50% of the protein has been degraded) values of 2.6 nM and 6.0 nM for MV4;11 and KYSE520 cells, respectively. MCE has not independently confirmed the accuracy of these methods. They are for reference only.Form:Solid... Read More | Inquire | BackgroundStreptavidin is a tetrameric bacterial protein isolated from Streptomyces avidinii providing 4 high-affinity biotin binding sites. Streptavidin homo-tetramers have an extraordinarily high affinity for biotin. With a dissociation constant on the order of ≈10⁻¹⁴ mol/L,BackgroundStreptavidin is a tetrameric bacterial protein isolated from Streptomyces avidinii providing 4 high-affinity biotin binding sites. Streptavidin homo-tetramers have an extraordinarily high affinity for biotin. With a dissociation constant on the order of ≈10⁻¹⁴ mol/L, the binding of biotin to streptavidin is one of the strongest non-covalent interactions known in nature. Unlike egg-white avidin, which has a net positive charge at neutral pH and contains about 7% carbohydrate, streptavidin has almost no net charge at neutral pH, does not contain carbohydrate, and exhibits lower non-specific background. Streptavidin conjugates are widely used together with a conjugate of biotin for specific detection of a variety of proteins, protein motifs, nucleic acids and other molecules. This FITC-streptavidin conjugate was prepared by highly purified Streptavidin and free FITC was removed. Streptavidin (FITC) is a useful second-step reagent for the indirect immunofluorescent staining of cells in combination with biotinylated primary antibodies for flow cytometric analysis. Excitation at 488nm light leads to a fluorescence emission maximum of 520 nm.Recommended Usage：Every lot of Streptavidin-FITC is tested by flow cytometry using biotinylated primary antibodies. From this testing it is recommended that between 0.02 and 0.25 µg of streptavidin be used per 106 cells in a 100 µl staining volume... Read More |