This DLL4 protein is labelled with His-Avi Tag,Biotin.
原理
Biotinylated Human DLL4 Protein
序列
Ser27-Pro524
产品特性
Recombinant Biotinylated Human DLL4 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Ser27-Pro524.
纯度
> 95 % as determined by Tris-Bis PAGE,> 95 % as determined by HPLC
过滤
0.22 μm filtered
内毒素水平
Less than 1EU per μg by the LAL method.
Biological Activity Comment
Immobilized Anti-DLL4 Antibody, hFc Tag at 1μg/ml (100μl/Well) on the plate. Dose response curve for Biotinylated Human DLL4, His Tag with the EC50 of 93.6ng/ml determined by ELISA. See testing image for detail.
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/mL is recommended. Dissolve the lyophilized protein in distilled water.
缓冲液
Lyophilized from 0.22μm filtered solution in PBS, 200 mM L-arginine ( pH 7.4). Normally 8 % trehalose is added as protectant before lyophilization.
储存条件
-20 °C,-80 °C
储存方法
-20 to -80°C for 12 months as supplied from date of receipt.,-80°C for 3-6 months after reconstitution.,2-8°C for 2-7 days after reconstitution.,Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Delta-like protein 4 (DLL4) is a type I membrane protein belonging to the Delta/Serrate/Lag2 (DSL) family of Notch ligands. Activates NOTCH1 and NOTCH4. Involved in angiogenesis, negatively regulates endothelial cell proliferation and migration and angiogenic sprouting. Essential for retinal progenitor proliferation. Required for suppressing rod fates in late retinal progenitors as well as for proper generation of other retinal cell types (By similarity). During spinal cord neurogenesis, inhibits V2a interneuron fate.
分子量
55.7 kDa. Due to glycosylation, the protein migrates to 62-68 kDa based on Tris-Bis PAGE result.