Expression system: Mammalian
Purity: > 95% as determined by reduced SDS-PAGE
Endotoxin: less than 0.1 ng/ug (1 EU/ug) as tested by LAL
Storage and stability: Lyophilized proteins should be stored at < -20°C but can be stored at room temperature for up to 3 weeks. The recombinant protein solution can be stored at 4-7℃ for 2-7 days. The isometric solution of the recombinant sample was stable at < -20°C for 3 months
Biological Activity: Metalloproteinase tissue inhibitors or TIMPs are a family of proteins that regulate the activation and proteolytic activity of zinc enzymes, known as matrix metalloproteinases (MMPs). Tissue metalloproteinase inhibitor 2 (TIMP-2) is a non-N-glycosylated protein with a molecular weight of 22 kDa. It is produced by a variety of cell types and inhibits matrix metalloproteinases in a non-covalent manner by forming binary complexes and irreversibly inactivates matrix metalloproteinases by binding to zinc cofactors. Timp-2 also has the activity of promoting erythrocyte growth and cell growth.
| Solubility (25°C) | It is not recommended to reconstitute to a concentration less than 100 μg/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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