Species: Mouse
Expression system: E.coli
Purity: > 95% as determined by reduced SDS-PAGE
Endotoxin: LAL test: less than 0.001 ng/µg (0.01 EU/µg)
Apparent molecular weight: 17kda, reduction conditions
Storage and Stability: lyophilized proteins should be stored at < -20°C, but can be stored for up to 3 weeks at room temperature. The recombinant protein solution can be stored at 4-7 ° C for 2-7 days. Aliquots of recombinant samples were stable at < -20°C for 3 months.
Bioactivity: Interleukin 2 (IL 2), also known as T-cell growth factor, is a member of a family of cytokines that includes IL-4, IL-7, IL-9, IL-15 and IL-21. Each member of the family has a four-helix bundle. Il-2 signaling is transmitted through the IL-2 receptor, a complex of tree-like subunits called alpha, beta, and gamma. Il-2rγ is shared by cytokine receptors from all members of the cytokine family. The identity of mature mouse IL-2 with human IL-2 and rat IL-2 was 56% and 73%, respectively. Il-2 is produced by CD4+ T cells, CD8+ T cells, γδT cells, B cells, dendritic cells and eosinophils, and plays an important role in key functions of the immune system, tolerance and immunity, mainly through its powerful stimulatory activity on T cells. Thus, IL-2 may be a key cytokine that naturally suppresses autoimmunity.
| Solubility (25°C) | It is not recommended to reconstitute to a concentration less than 100μg/ml. |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
| Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
| Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
| Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
| Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
| Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
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