IL4
宿主: 人
宿主: Mammalian Cells
Recombinant
The purity of the protein is greater than 95 % as determined by SDS-PAGE and Coomassie blue staining.
限制
仅限研究用
状态
Lyophilized
溶解方式
Reconstituted in ddH2O or PBS at 100 μg/mL.
缓冲液
Lyophilized after extensive dialysis against PBS.
储存条件
-80 °C
储存方法
Lyophilized recombinant Murine Interleukin 4 (IL-4) remains stable up to 6 months at -80 °C from date of receipt. Upon reconstitution, rmIL-4 should be stable up to 1 week at 4 °C or up to 2 months at -20 °C.
Interleukin-4 (IL-4) is a pleiotropic cytokine regulates diverse T and B cell responses including cell proliferation, survival, and gene expression. It has important effects on the growth and differentiation of different immunologically competent cells. Interleukin-4 is produced by mast cells, T cells, and bone marrow stromal cells[1]. IL-4 regulates the differentiation of native CD4+ T cells (Th0 cells) into helper Th2 cells, and regulates the immunoglobulin class switching to the IgG1 and IgE isotypes. IL-4 has numerous important biological functions including stimulating B-cells activation, T-cell proliferation and CD4+ T-cells differentiation to Th2 cells. It is a key regulator in hormone control and adaptive immunity[2]. IL-4 also plays a major role in inflammation response and wound repair via activation of macrophage into M2 cells[3]. IL-4 is stabilized by three disulphide bonds forming a compact globular protein structure[4]. Four alpha-helix bundle with left-handed twist is dominated half of the protein structure with 2 overhand connections and fall into a 2-stranded anti-parallel beta sheet[5]. Synonyms: BCGF, BCDF, B cell stimulating factor (BSF-1)