The ED50 was determined by the dose-dependent stimulation of the proliferation of human MO7e cells was found to be < 0.2 ng/mL, corresponding to a specific activity of > 5 x 107 units/mg.
内毒素水平
Endotoxin level is less than 0.1 ng per μg (1 EU/μg).
THPO
宿主: 人
宿主: 大肠杆菌(E. Coli)
Recombinant
>95 % as determined by SDS-PAGE
Func
Active
限制
仅限研究用
状态
Lyophilized
注意事项
As with any protein, exposing Thrombopoeitin recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.
储存条件
-20 °C
储存方法
The recombinant protein is stable for at least 2 years from date of receipt at -20 °C. Reconstituted Thrombopoeitin is stable for at least 3 months when stored in working aliquots with a carrier protein at -20 °C.
有效期
24 months
抗原
Thrombopoietin (THPO)
背景
TPO is a lineage specific growth factor, produced in the liver, kidney and skeletal muscle. It stimulates the proliferation and maturation of megakaryocytes, and promotes increased circulating levels of platelets in vivo. TPO signals through the c-mpl receptor and acts as an important regulator of circulating platelets. Human and murine TPO exhibits cross-species reactivity. Recombinant rat TPO is a fully biologically active 174 amino acid polypeptide (18.7 kDa), which contains the erythropoietin-like domain of the full length TPO protein.