IL-33 Protein, Human, Recombinant

• Background:

  Interleukin 33 (IL-33), also known as DVS27 or NF-HEV (Nuclear Factor from High Endothelial Venules), is a pro-inflammatory protein and a chromatin-associated cytokine of the IL-1 family with high sequence and structural similarity to IL-1 and IL-18. IL-33 protein is expressed highly and rather selectively by high endothelial venule endothelial cells (HEVECs) in human tonsils, Peyer's patches, and lymph nodes. IL-33 protein has transcriptional regulatory properties, and the researches suggested that IL-33 is a dual-function protein that might act both as a cytokine and as an intracellular nuclear factor. As a type 2 cytokines, IL-33 protein also play a pivotal role in helminthic infection and allergic disorders.

• Synonyms:

  C9orf26 Protein, Human; DVS27 Protein, Human; IL1F11 Protein, Human; NF-HEV Protein, Human; NFEHEV Protein, Human

• Gene Name:

  Interleukin 33

• Expression System:

  E. coli

• Tag:

  No tag

• Endotoxin:

  Please contact us for more information.

• Purity:

  > 95 % as determined by SDS-PAGE.

• Activity:

  1. Measured by its binding ability in a functional ELISA. Immobilized human IL-33 at 10 μg/ml (100 μl/well) can bind human IL1RL1 with a linear range of 0.31-5 ng/ml. 2. Measured in a cell proliferation assay using D10.G4.1 mouse helper T cells.The EDfor this effect is typically 1-7 ng/mL.

• Form:

  Lyophilized

• Buffer:

  Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.

• Function:

  Biological Target proteins, Cytokine Proteins, Growth Factor proteins, Interleukin proteins, Biomarker Proteins, Cell Therapy proteins

• Molecular Weight:

  The recombinant human IL33 comprises 160 amino acids and predicts a molecular mass of 18 kDa as estimated in SDS-PAGE under reducing conditions.

• Storage Conditions:

  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. Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.

• Symbol:

  IL33

• Species:

  Human

• Protein ID:

  NP_254274.1

• Overview:

  A DNA sequence encoding the C-terminal segment of human IL33 (NP_254274.1) (Ser 112-Thr 270) was expressed with an initial Met at the N-terminus.

• AA Sequence:

  Ser112-Thr270

• Protein ID Link:

  https://www.ncbi.nlm.nih.gov/protein/NP_254274.1