High-molecular-weight kininogen (HMWK or HK), also known as the Williams-Fitzgerald-Flaujeac factor or the Fitzgerald factor or the HMWK-kallikrein factor, is a protein from the blood coagulation system as well as the kinin-kallikrein system. It is a protein that adsorbs to the surface of biomaterials that come in contact with blood in vivo. This protein circulates throughout the blood and quickly adsorbs to the material surfaces.
Read more about High-molecular-weight Kininogen: Nomenclature, Physiology, Genetics, Measurement, Role in Disease