Recombinant Swine IL-4 protein (His Tag)

Specifications

Catalog number

PKSS000004-01

Size / count

5 µg

Dry ice

No

Hazardous

No

Discontinued

No

Background

Interleukin-4 (IL-4) is a pleiotropic cytokine that regulates diverse T and B cell responses including cell proliferation; survival and gene expression. IL-4 is 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 allergic response.

Abbreviation

IL-4

Synonyms

B-cell Stimulating Factor (BSF-1) ; BCDF; BCGF

UniProt

Q04745

Accession Number

Q04745

Expression System

E.coli

Tag

C-His

Sequence

His 25-Cys 133

Applications

Cell culture

Endotoxin

< 0.1 EU per μg of the protein as determined by the LAL method.

Purity

> 98 % as determined by reducing SDS-PAGE.

Bioactivity

50

Reconstitution

Please refer to the printed manual for detailed information.

Shipping Conditions

This product is provided as lyophilized powder which is shipped with ice packs.

Storage Conditions

Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Calculated Molecular Weight

13.5 kDa

Observed Molecular Weight

15 kDa

Species

Porcine