Interleukin 38 (IL-38) belongs to the IL-1 family and is expressed in fetal skin, spleen, and tonsils, predominantly in the basal epithelium of the skin and in proliferating B cells of the tonsils.IL-38 binds soluble IL-1 receptor type 1 and may be involved in the modulation of adaptive and innate immune responses. Alone, it does not induce cytokine production but decreases T-cell production of heat-inactivated Candida albicans IL22 and IL17A.IL-38 decreases IL36γ -induced IL8 production by peripheral blood mononuclear cells and increases IL6 production by bacterial lipopolysaccharide (LPS)-stimulated dendritic cells. Recombinant Human IL-38 is a 16.9 kDa protein containing 152 amino acid residues. This Recombinant Human IL-38 is supplied as Lyophilized powder with high activity, high purity, low endotoxin, and NO labeling. Product Properties Synonyms Interleukin-38, Interleukin 1 family member 10, IL1F10, FIL1-theta, FKSG75, IL-1HY2, IL1-theta Source E.coli-derived human IL-38 protein, Met1-Trp152. Accession Q8WWZ1 Molecular Weight Approximately 16.9kDa, a single non-glycosylated polypeptide chain containing 152 amino acids. AA Sequence MCSLPMARYYIIKYADQKALYTRDGQLLVGDPVADNCCAEKICILPNRGLARTKVPIFLGIQGGSRCLACVETEEGPSLQLEDVNIEELYKGGEEATRFTFFQSSSGSAFRLEAAAWPGWFLCGPAEPQQPVQLTKESEPSARTKFYFEQSW Endotoxin < 0.01 EU/μg by the LAL method. Purity > 97% by SDS-PAGE and HPLC Formulation Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 6.0. Physical Appearance Lyophilized powder Tag NO Shipping and Storage -25 ~ -15 ° C storage, 1 year expiration date after receipt. After re-solution, store at 2 ~8 °C, 7 days expiration date. After re-dissolution, store at -85~-65°C, 3 months expiration date. Compounding method Centrifuge before uncapping to bring contents to the bottom. Reconstitute in NO bacterial distilled water to a concentration of 0.1-1.0 mg/mL, which can be diluted even further according to subsequent experiments; for long term storage, it is recommended that carrier protein (0.1% BSA) be added to the rehydration buffer; dispense for a single experimental dosage, and freeze at -80°C to avoid repeated freezing and thawing. Cautions 1. For your safety and health, please wear lab coat and disposable gloves. 2. This product is for scientific research purposes only.