规格
Activity:	0.132 ng/ml
Bioassay:	Proliferation of TF1 cells
Endotoxin Level:	< 0.1 ng/µg
Product Line:	CTS™, Gibco®
Purity or Quality Grade:	Carrier-Free
Reactivity:	Human
Shipping Condition:	Wet Ice
Expression System:	E. coli
Protein Family:	Cytokines & Receptors
Protein Form:	Full Length, Recombinant, Ligand
Protein Subtype:	Interleukins
Research Category:	Clinical Research, Stem Cell Research, Immunology, Inflammation
Species:	Human
Validated Application:	Cell Culture
Molecular Weight:	14.9 kDa
Purification Method:	Gel-Purified
Purity:	95 %
Gene Alias:	IL-4 (Interleukin 4)

储存
Lyophilized protein can be stored at 2-8°C dessicated. Once reconstituted, store in aliquots at ≤20°C. Avoid multiple freeze⁄thaw cycles.

描述

Recombinant IL4 is a bioactive protein intended for use in cell culture applications. IL4 promotes the proliferation and differentiation of activated B cells. In addition, IL4 up-regulates class II MHC antigen expression and IgE receptors. ED50 = 0.05 to 0.4 ng⁄mL (Specific Activity: 2.0 x 10^7 to 2.5 x 10^6 units⁄mg). The biological activity is determined by measuring the dose-dependent proliferation of human TF-1 cells. A concentration range of 0.1 to 10.0 ng⁄mL is effective for most in vitro applications.

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