纯度
≥ 95 % as determined by SDS-PAGE;≥ 95% as determined by HPLC.
内毒素
< 0.01 EU/μg of the protein by LAL method
制剂
Lyophilized from sterile 0.22 μm filtered solution in PBS buffer with Trehalose, Glycerol, and Tween80, pH 7.4.
描述
Recombinant Human Wnt-3a Surrogate Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence of Human Wnt-3a Surrogate fused with hFC at the C-terminus.
储存
Store at -70°C. This product is stable at ≤ -70°C for up to 1 year from the date of receipt. For optimal storage, aliquot into smaller quantities after centrifugation and store at recommended temperature. Avoid repeated freeze-thaw cycles.
（1）未开盖的干粉蛋白在 -20°C至-80°C可保存12个月；复溶之后，蛋白溶液在-20°C及以下可保存3个月，在2-8℃可保存1周；
（2）干粉蛋白复溶浓度建议在0.1-0.5 mg/mL，不能低于0.1mg/mL，长期储存请添加保护剂（如0.1%BSA），并分装保存，避免反复冻融；
（3）液体蛋白的保存温度及效期请参考说明书，如对液体蛋白浓度有要求，请提前咨询销售或者技术支持。
生物活性
1、Measured by its ability to induce Topflash reporter activity in HEK293T human embryonic kidney cells. The ED50 for this effect is 7.38 29.54 ng/mL ,corresponding to a specific activity of 3.39×104~1.35×105 units/mg.
请在蛋白复溶计算器中输入蛋白总质量和所需终浓度，快速计算您需要添加溶液的体积吧！
Wnt3a Surrogate protein is a Wnt recombination protein that plays an important role in embryonic development, adult tissue homeostasis and injury repair. Wnt3a Surrogate protein, consisting of the domain and Fc portion of Wnt3a, helps organoids expand and maintain a source of Wnt. Organoids are a rapidly evolving model system for tissue development, and Wnt3a is considered as the essential protein for organoid growth. Wnt3a or the small molecule glycogen synthase kinase 3 (GSK3) inhibitor CHIR are commonly used as Wnt sources in experiments. However, the application of Wnt3a is hampered by Wnt lipidation, and cross-reactivity with Wnt frizzled (Fzd). Therefore, Wnt3a Surrogate protein was used instead of Wnt3a, as a water-soluble and Fzd-specific alternative Wnt agonist.
