The ED50 as determined by the dose-dependent proliferation of TF-1 cells was < 4.0 ng/ml, corresponding to a specific activity of > 2.5 x 105 units/mg.
Pureté
> 97 % by SDS-PAGE and HPLC analyses.
niveau d'endotoxine
Level Less than 1EU/µg of rMuIL-13 as determined by LAL method
IL13
Origine: Souris
Hôte: Escherichia coli (E. coli)
Recombinant
Greater than 95 % as determined by SDS-PAGE
WB, ELISA
Restrictions
For Research Use only
Format
Lyophilized
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at
IL-13 is an immunoregulatory cytokine produced primarily by activated Th2 cells, and also by mast cells and NK cells. Targeted deletion of IL-13 in mice resulted in impaired Th2 cell development and indicated an important role for IL-13 in the expulsion of gastrointestinal parasites. IL-13 exerts anti-inflammatory effects on monocytes and macrophages and it inhibits the expression of inflammatory cytokines such as IL-1beta, TNF-alpha, IL-6 and IL-8. IL-13 has also been shown to enhance B cell proliferation and to induce isotype switching resulting in increased production of IgE. Blocking of IL-13 activity inhibits the pathophysiology of asthma. Human and mouse IL-13 is cross-species reactive. Synonym:. Formulation: Lyophilized from a 0.2µm filtered solution in PBS, pH 7.4.
Poids moléculaire
Approximately 12.3 kDa, a single non-glycosylated polypeptide chain containing 111 amino acids.