Interleukin 4 / IL4 Monoclonal Mouse Antibody (IL4/1597)
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Product Description
Interleukin-4 (IL-4), also designated B cell stimulatory factor-1, is a glycosylated cytokine secreted by activated T lymphocytes, basophils and mast cells. The secreted IL-4 protein promotes the growth and differentiation of cells that participate in immune defense by favoring such events as the expansion of the Th2 lineage relative to Th1 cells. These T helper cell subsets are defined by their pattern of cytokine secretion: Th1 cells secrete IL-2, TNF, while Th2 cells secrete IL-4, IL-5 and IL-10. Another key immunological function of IL-4 is to induce immunoglobulin class switching. IL-4 has been shown to induce the production of IgE and enhance IgG4 secretion by B cells, but suppress the production of IgM, IgA, IgG1, IgG2 and IgG3. It has been determined that Stat6 is rapidly tyrosine phosphorylated following stimulation of IL-3 or IL-4, but is not detectably phosphorylated following stimulation with IL-2, IL-12 or erythropoietin.
Primary antibodies are available purified, or with a selection of fluorescent CF® dyes and other labels. CF® dyes offer exceptional brightness and photostability. See the CF® Dye Brochure for more information. Note: Conjugates of blue fluorescent dyes like CF®405S and CF®405M are not recommended for detecting low abundance targets, because blue dyes have lower fluorescence and can give higher non-specific background than other dye colors.
Catalog Number Key for Primary Antibody Conjugates
Antibody # prefix | Conjugation | Ex/Em (nm) | Laser line | Detection channel | Dye Features |
---|---|---|---|---|---|
BNC04 | CF®405S | 404/431 | 405 | DAPI (microscopy), AF405 | CF®405S Features |
BNC88 | CF®488A | 490/515 | 488 | GFP, FITC | CF®488A Features |
BNC68 | CF®568 | 562/583 | 532, 561 | RFP, TRITC | CF®568 Features |
BNC94 | CF®594 | 593/614 | 561 | Texas Red® | CF®594 Features |
BNC40 | CF®640R | 642/662 | 633-640 | Cy®5 | CF®640R Features |
BNC47 | CF®647 | 650/665 | 633-640 | Cy®5 | CF®647 Features |
BNCB | Biotin | N/A | N/A | N/A | |
BNUB | Purified | N/A | N/A | N/A | |
BNUM | Purified, BSA-free | N/A | N/A | N/A |