Lyophilized from 0.22 um filtered solution in PBS (pH=7.4) with 5 mM DTT. Normally 5% trehalose is added as protectant before Lyophilization.
保存条件
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. In general: 12 months from date of receipt, -20 to -80℃ as supplied. 1 month, 2 to 8℃ under sterile conditions after reconstitution. 3 months, -20 to -80℃ under sterile conditions after reconstitution.
注意事项
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
重组人IL-4 (活性的, Tag free)
产品介绍:Interleukin 4 (IL-4) is a 14-19kDa glycosylated monomer, belongs to the IL-4 / IL-13 family. IL-4 is primarily expressed by Th2biased CD4+ T cells, mast cells, basophils, and eosinophils. IL-4 is a pleiotropic cytokine that participates in at least several B-cell activation processes as well as of other cell types. It is a co-stimulator of DNAsynthesis. It induces the expression of class II MHC molecules on resting B-cells. It enhances both secretion and cell surface expression of IgE and IgG1. It also regulates the expression of the low affinity Fc receptor for IgE (CD23) on both lymphocytes and monocytes.