弹性蛋白是弹性纤维中主要的蛋白质成分,并且大部分存在于结缔组织中与胶原和复合多糖相结合。成熟的弹性蛋白所含的交联键, 是由赖氨酰基通过氧化作用脱掉未端ε-氨基,生成ε-醛基赖氨酰基而形成。起催化脱氨基作用的酶,是依赖于铜的赖氨酰氧化酶,它催化细胞外基质成分(如胶原与弹性蛋白等)中的赖氨 Elastin is the major protein component of elastic fibers, and is mostly found in connective tissue with collagen and polysaccharides. The mature elastin contains crosslinks formed by lysyl cleavage of the terminal ε-amino group by oxidation to produce ε-allylysyl lysyl. The enzyme that catalyzes deamination is a copper-dependent lysyl oxidase that catalyzes the release of lysine from extracellular matrix components (such as collagen and elastin)