弹性蛋白是存在于结缔组织中的一种纤维蛋白,具有特殊的弹性,牵拉放松后能立即完全复原。弹性蛋白和有关的微纤维结构一起构成主要存在于肺和皮肤的弹性纤维。弹性纤维由弹性蛋白酶——一组主要由中性白细胞释放的多种蛋白水解酶——降解。弹性蛋白酶活性往往受数种血清因子抑制,其中最主要的是肝糖蛋白 A—1—AT。常存在于人血清中的其它蛋白酶抑制剂α_1—抗糜蛋 Elastin is a fibrin present in connective tissue with a special elasticity, which can be completely and immediately recovered after relaxation. Elastin and associated microfibril structures together constitute the elastic fibers that predominate in the lung and skin. Elastic fibers are degraded by elastase, a group of proteolytic enzymes that are released predominantly by neutrophils. Elastase activity is often inhibited by several serum factors, the most important being heparin glycoprotein A-1-AT. Other protease inhibitors that are commonly found in human serum, α_1-anti-surimi