Myeloblastin
Myeloblastin (EC3.4.21.76, leukocyte proteinase 3, leukocyte proteinase 4, Wegener's granulomatosis autoantigen, proteinase PR-3, proteinase-3, PMNL proteinase) is an enzyme. This enzyme catalyses the following chemical reaction
This enzyme is present in polymorphonuclear leukocyte granules.