Purity: > 90% by SDS - PAGE Format: Liquid. In 20mM Tris-HCl, pH8.0, 2M urea, 20%Glycerol. CRP (C-reactive protein) belongs to the pentaxin family. This protein is found in the blood, its levels rise dramatically during inflammatory processes occurring in the body. This increment is due to a rise in the plasma concentration of IL-6, which is produced predominantly by macrophages as well as adipocytes. It is also play another important role in innate immunity, as an early defense system against infections.