IL-4 Protein, Human, Recombinant (His & Avi), Biotinylated

Interleukin-4, also known as IL4, is a secreted protein which belongs to the IL-4 / IL-13 family. Interleukin-4 / IL4 has many biological roles, including the stimulation of activated B-cell and T-cell proliferation.In the presence of IL-4 and IL-13, cytokines that are produced in a Th-2 type response, particularly during allergy and parasitic infections, macrophages become differentially activated, And this cytokine is a ligand for interleukin 4 receptor.

Pack Size	Availability	Price/USD
100 μg	5 days	$ 932.00
500 μg	5 days	$ 3,720.00
1 mg	5 days	$ 6,210.00

Pack Size

Availability

Price/USD

Quantity

100 μg

5 days

$ 932.00

500 μg

5 days

$ 3,720.00

1 mg

5 days

$ 6,210.00

Description

Species	Human
Expression System	HEK293
Tag	C-His-Avi
Accession Number	P05112-1
Synonyms	binetrakin, BCGF1, IL4, BSF1, IL-4, MGC79402, interleukin 4, BCDF, BCGF-1, B cell growth factor 1, pitrakinra, BSF-1
Construction	Recombinant Biotinylated Human IL-4 Protein is expressed from HEK293 with His tag and Avi tag at the C-Terminus. It contains His25-Ser153.[Accession \|P05112-1]
Protein Purity	> 95% as determined by Tris-Bis PAGE
Molecular Weight	The protein has a predicted MW of 17.8 kDa. Due to glycosylation, the protein migrates to 23-25 kDa based on Tris-Bis PAGE result.

Endotoxin	Less than 1EU per μg by the LAL method.
Formulation	Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution	Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.
Stability & Storage	-20 to -80°C for 12 months as supplied from date of receipt. -20 to -80°C for 3-6 months in unopened state after reconstitution. 2-8°C for 2-7 days after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Shipping	In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background	Interleukin-4, also known as IL4, is a secreted protein which belongs to the IL-4 / IL-13 family. Interleukin-4 / IL4 has many biological roles, including the stimulation of activated B-cell and T-cell proliferation.In the presence of IL-4 and IL-13, cytokines that are produced in a Th-2 type response, particularly during allergy and parasitic infections, macrophages become differentially activated, And this cytokine is a ligand for interleukin 4 receptor.