bsm-54002R [Primary Antibody]
Interleukin-4 Recombinant Antibody
www.biossusa.com
[email protected]
800.501.7654 [DOMESTIC]
+1.781.569.5821 [INTERNATIONAL]
DATASHEET

Host: Rabbit

Target Protein: IL4

Clonality: Recombinant

Isotype: IgG

Swiss Prot: P05112

Source: 3565

Purification: Purified by Protein A.

Storage Buffer: 0.01M TBS (pH 7.4), 1% BSA, 0.02% Proclin 300, and 50% Glycerol

Storage: Store at 4°C for up to 2 weeks. For long term storage, store at -20°C in small aliquots to prevent freeze-thaw cycles.

Background:

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_ and IFN-_, 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.

Size: 100ul

Concentration: 1ug/ul

Predicted Molecular Weight: 14


Cross Reactive Species: Human

For research use only. Not intended for diagnostic or therapeutic use.

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VALIDATION IMAGES

Paraformaldehyde-fixed, paraffin embedded Human Chronic tonsillitis; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation withIL-4 Monoclonal Antibody, Unconjugated(bsm-54002R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.


Lane 1: Recombinant human IL-4 protein, His (HEK293) (bs-43501P) probed with IL-4 Monoclonal Antibody, Unconjugated (bsm-54002R) at 1:1000 dilution and 4°C overnight incubation. Followed by conjugated secondary antibody incubation at 1:20000 for 60 min at 37˚C.


Paraformaldehyde-fixed, paraffin embedded Human Tonsil; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation withIL-4 Monoclonal Antibody, Unconjugated(bsm-54002R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.


Paraformaldehyde-fixed, paraffin embedded Human Spleen; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation withIL-4 Monoclonal Antibody, Unconjugated(bsm-54002R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.


25 ug total protein per lane of various lysates (see on figure) probed with IL-4 monoclonal antibody, unconjugated (bsm-54002R) at 1:1000 dilution and 4°C overnight incubation. Followed by conjugated secondary antibody incubation at r.t. for 60 min.