Product Properties Alternative Names IL-1F7,IL-1H4,IL-1X,FIL1 zeta Species Human Expression Sequence Lys27-Asp192 Accession Q9NZH6-2 Tag No Tag Expression System E.coli Molecular Weight The protein has a predicted MW of 18.55 kDa same as SDS-PAGE result. Purity > 95% as determined by SDS-PAGE and HPLC. Endotoxin < 1.0 EU per μg by the LAL method. Formulation Lyophilized from 0.22μm filtered solution in 20mM PBS, 2mM DTT (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. Appearance Lyophilized Powder Biological Activity SPR Data:Human IL-18BP, hFc Tag captured on CM5 Chip via Protein A can bind Human IL-37, No Tag with an affinity constant of 0.12 μM as determined in SPR assay . Reconstitution Method Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water. Features High purity, high activity, low endotoxin, high batch-to-batch consistency Storage Store at -25 ~ -15℃, valid for 1 year after receipt. After reconstitution, store at -85 ~ -65℃, valid for 3 months.