发角蛋白 发角蛋白或毛发角蛋白英語Hair keratin是一类在头发和指甲中发现的角蛋白存在两类毛发角蛋白 酸性的I型发角蛋白英语type I hair keratin type I hair keratin  KRT type I hair keratin  KRT type I hair keratin A KRTA type I hair keratin B KRTB type I hair keratin  KRT type I hair keratin  KRT type I hair keratin  KRT type I hair keratin  KRT type I hair keratin  KRT 碱性的II型发角蛋白英语type II hair keratin type II hair keratin  KRT type II hair keratin  KRT type II hair keratin  KRT type II hair keratin  KRT type II hair keratin  KRT type II hair keratin  KRT