Recombinant Human IL-13 Protein is expressed from HEK293 without tag.It contains Gly21-Asn132.
过滤
0.22 μm filtered
内毒素水平
Less than 1EU per μg by the LAL method.
Biological Activity Comment
Immobilized Human IL-13, No Tag at 2μg/ml (100μl/Well) on the plate. Dose response curve for Human IL-13 Ra 2, hFc Tag with the EC50 of 2.84μg/ml determined by ELISA. See testing image for detail.
IL13
宿主: 小鼠
宿主: 大肠杆菌(E. Coli)
Recombinant
Greater than 95 % as determined by SDS-PAGE
WB, ELISA
限制
仅限研究用
状态
Lyophilized
溶解方式
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 ( 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.
有效期
12 months
抗原
IL-13 (IL13)
(Interleukin 13 (IL13))
别名
IL-13
背景
Interleukin-13 (IL-13) is a monomeric 17 kDa immunoregulatory cytokine that plays a key role in the pathogenesis of allergy, cancer, and tissue fibrosis. It is secreted by several helper T cell subsets, NK cells, mast cells, eosinophils, basophils, and visceral smooth muscle cells. Inhibits inflammatory cytokine production. Synergizes with IL2 in regulating interferon-gamma synthesis. May be critical in regulating inflammatory and immune responses. Positively regulates IL31RA expression in macrophages (By similarity).
分子量
12.35 kDa. Due to glycosylation, the protein migrates to 20-45 kDa based on Tris-Bis PAGE result.