H7291
白细胞介素4 人
potency:, IL-4, recombinant, expressed in HEK 293 cells, HumanKine®, suitable for cell culture
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Biological source:
human
Recombinant:
expressed in HEK 293 cells
Assay:
>95% (SDS-PAGE)
Form:
lyophilized powder
Mol wt:
dimer 14-19 kDa (glycosylated)
Impurities:
<1 EU/μg
biological source
human
Quality Segment
recombinant
expressed in HEK 293 cells
assay
>95% (SDS-PAGE)
form
lyophilized powder
potency
≤0.6 ng/mL EC50
quality
endotoxin tested
mol wt
dimer 14-19 kDa (glycosylated)
packaging
pkg of 1 mg, pkg of 10 μg, pkg of 100 μg
manufacturer/tradename
HumanZyme
technique(s)
cell culture | mammalian: suitable
impurities
<1 EU/μg
UniProt accession no.
storage temp.
−20°C
Gene Information
human ... IL4(3565)
General description
Interleukin-4 (IL-4) is a pleiotropic cytokine and a complex glycoprotein mapped to human chromosome 5q31.1. It is produced by mast cells, basophils and a subset of activated T cells.
Biochem/physiol Actions
Interleukin-4 (IL-4) interacts with interleukin 13 and is an interleukin-4 receptor ligand. It regulates IgE and IgG1 production by B cells. IL-4 favors glial and neuronal differentiation and regulates differentiation of naive cluster of differentiation CD4+ T cells to the T helper type 2 (TH2) cells. Polymorphism in the IL-4 gene is implicated in immune and inflammatory disorders. In cerebral infarction, IL-4 levels are elevated.
Physical form
Lyophilized from a 0.2 μm filtered solution of 1x PBS.
Preparation Note
HumanKine Interleukin-4 (IL-4), expressed in human HEK 293 cells, is a glycosylated monomer with an apparent molecular mass of 14-19 kDa due to glycosylation, which is absent when this cytokine is expressed in E. coli. Production in human HEK 293 cells offers authentic glycosylation. Glycosylation contributes to stability in cell growth media and other applications.
Analysis Note
The activity is determined by the dose-dependent simulation of the proliferation of human TF-1 cells (human erythroleukemic indicator cell line).
Legal Information
HumanKine is a registered trademark of Proteintech Group, Inc. and Humanzyme, Inc
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存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable