Registration for PeproTech.com is no longer available. To order your PeproTech products online, register or logon to ThermoFisher.com.

Growth Factors & Cytokines

Recombinant Human IL-4

Product Details

Catalog Number: 200-04
Description:
Recombinant Human IL-4

IL-4 is a pleiotropic cytokine that regulates diverse T and B cell responses including cell proliferation, survival and gene expression. Produced by mast cells, T cells and bone marrow stromal cells, IL-4 regulates the differentiation of naive CD4+ T cells into helper Th2 cells, characterized by their cytokine-secretion profile that includes secretion of IL-4, IL-5, IL-6, IL-10, and IL-13, which favor a humoral immune response. Another dominant function of IL-4 is the regulation of immunoglobulin class switching to the IgG1 and IgE isotypes. Excessive IL-4 production by Th2 cells has been associated with elevated IgE production and allergy. Recombinant Human IL-4 is a 15.1 kDa globular protein containing 130 amino acid residues.

Source: E.coli

Synonyms: BCGF, BCDF, B cell stimulating factor (BSF-1)

AA Sequence: MHKCDITLQE IIKTLNSLTE QKTLCTELTV TDIFAASKNT TEKETFCRAA TVLRQFYSHH EKDTRCLGAT AQQFHRHKQL IRFLKRLDRN LWGLAGLNSC PVKEANQSTL ENFLERLKTI MREKYSKCSS

Purity: ≥ 98% by SDS-PAGE gel and HPLC analyses.

Biological Activity: The ED50 as determined by the dose-dependent stimulation of human TF-1 cells is ≤ 0.2 ng/ml, corresponding to a specific activity of ≥ 5 x 106 units/mg.

This product has been tested against the WHO standard. International Unit information can be found here.

Recombinant Human IL-4 Biological Activity Graph Recombinant Human IL-4 WHO Comparison Graph Recombinant Human IL-4 Biological Activity Graph Recombinant Human IL-4 WHO Comparison Graph

Calculated Molecular Weight: 15.1 kDa

Accession Number: P05112

Gene ID: 3565

Endotoxin: Endotoxin level is < 0.1 ng/ug of protein (< 1 EU/ug)

Cross Reactivity Cited in References:
Country Of Origin: USA

Not for human use.

Research Interest

Recent Citations

First Author
George, S
Title
Protocol to drive human monocyte-to-macrophage polarization in vitro using tumor conditioned media.
Citation
STAR Protocols; 3(4) pg101666
PubMed ID
First Author
Li, Y
Title
Targeted inhibition of STAT3 induces immunogenic cell death of hepatocellular carcinoma cells via glycolysis.
Citation
Molecular Oncology; 16(15) pg2861-2880
PubMed ID
First Author
Loef, E J
Title
Plasminogen and plasmin can bind to human T cells and generate truncated CCL21 that increases dendritic cell chemotactic responses.
Citation
The Journal of Biological Chemistry; 298(7) pg102112
PubMed ID

Product Reviews

Existing reviews
hIL4
Good product. Used for in vitro culture to derive BMDCs.
From:  Kevin | Date:  26/08/2020
Great for APCs
Used to differentiate APCs, works very consistently
From:  Karma | Date:  26/08/2020
MDSCs
Used to differentiate PBMCs into MDSCs. Works well.
From:  Max | Date:  27/08/2020