C-Reactive Protein (CRP) 77-82 is the 77-82 fragment of C-Reactive Protein. CRP, the prototypic marker of inflammation, is a cardiovascular risk marker and may promote atherogenesis. CRP is an annular (ring-shaped), 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.