Annular pentameric protein found in blood plasma whose circulating concentrations rise in response to inflammation
C-reactive protein (CRP) is an annular pentameric protein found in blood plasma, whose circulating concentrations rise in response to inflammation. It is an acute-phase protein of hepatic origin that increases following interleukin-6 secretion by macrophages and T cells. Its physiological role is to bind to lysophosphatidylcholine expressed on the surface of dead or dying cells (and some types of ... Wikipedia