Human recombinant IL-22 (Interleukin-22) protein, AF

Interleukin 22 (IL-22) is an α-helical cytokine, predicts a molecular mass of 16.9 kDa. It is produced by T-helper (Th) -17 cells, γδ T cells, NKT cells and newly described innate lymphoid cells (ILCs) . Effects involve stimulation of cell survival, proliferation and synthesis of antimicrobials including S120, Reg3β, Reg3γ and defensins.

Product Specifications

Synonyms

IL-TIF, Cytokine ZCYTO18

Gene Name

IL22

UniProt

Q9GZX6

Reactivity

Human

Tag

His Tag (C-term)

Source

Escherichia coli

Applications

Cell Culture

Purification

>98% as determined by SDS-PAGE.

Endotoxin

<0.1 EU per 1 μg of the protein by the LAL method.

Bioactivity

Measure by its ability to induce proliferation in A549 cells. The ED50 for this effect is <0.5 ng/mL.

Form

The protein was lyophilized from a 0.2 μm filtered solution containing 1X PBS, pH 8.0. If you have any concerns or special requirements, please confirm with us.

Reconstitution

Centrifuge at 3000 rpm for 5 mins before opening. It is recommended to reconstitute the lyophilized protein in sterile H2O to a concentration not less than 100 μg/mL and incubate the stock solution at room temperature for at least 20 mins to ensure sufficient re-dissolved. Do Not Vortex! Vigorous shaking may impair the biological activity of the protein.

Molecular Weight

The protein has a calculated MW of 17.83 kDa. The protein migrates as 14 kDa under reducing condition (SDS-PAGE analysis) .

Storage Conditions

Lyophilized protein should be stored at -20°C for 1 year. Upon reconstitution, store at 2°C to 8°C for up to 1 week. Further dilute in a buffer containing a carrier protein or stabilizer (e.g. 0.1% BSA, 10%FBS, 5%HSA or 5% trehalose solution), protein aliquots should be stored at -20°C or -80°C for 3-6 months. Avoid repeated freeze/thaw cycles.

AA Sequence

MAPISSHCRLDKSNFQQPYITNRTFMLAKEASLADNNTDVRLIGEKLFHGVSMSERCYLMKQVLNFTLEEVLFPQSDRFQPYMQEVVPFLARLSNRLSTCHIEGDDLHIQRNVQKLKDTVKKLGESGEIKAIGELDLLFMSLRNACI with polyhistidine tag at the C-terminus.