Lyophilized. Lyophilized from sterile-filtered 20 mM Tris-HCl, 50 µg BSA/µg IL-1a, pH 8.3. Recombinant, human interleukin-1a expressed in E. coli. Potent stimulator of bone resorption and stimulator of nuclear phospholipase C. Induces nitric oxide synthase. Biological activity: ED₅₀ = 3-7 pg/ml as measured in a cell proliferation assay.. Purity: ≥97% by SDS-PAGE. Contaminants: Endotoxin: ≤1.0 EU/µg IL-1a. RTECS NM9739900.

Merck Index: 14, 4993
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