Interleukin-18 (IL18) (Active), recombinant human

Organism: Homo sapiens (Human). Source: Mammalian cell. Expression Region: 37-193aa. Protein Length: Full Length of Mature Protein. Tag Info: Tag free. Target Protein Sequence: YFGKLESKLS VIRNLNDQVL FIDQGNRPLF EDMTDSDCRD NAPRTIFIIS MYKDSQPRGM AVTISVKCEK ISTLSCENKI ISFKEMNPPD NIKDTKSDII FFQRSVPGHD NKMQFESSSY EGYFLACEKE RDLFKLILKK EDELGDRSIM FTVQNED. Purity: Greater than 95% as determined by SDS-PAGE. Endotoxin: =10 EU/mg by the LAL method. Biological Activity: Measured by its ability to induce IFN-gamma secretion by KG-1 human acute myelogenous leukemia cells in the presence of TNF-alpha. The ED50 for this effect is =2.0 ng/mL. Form: Lyophilized powder. Buffer: Lyophilized from a 0.2 µm filtered solution containing PBS, 5% mannitoland 0.01% Tween 80, pH 7.4. Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference. Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C. Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week. Relevance: n/a. Reference: n/a. Function: nan