Saxena I, Tayyab S
Department of Biochemistry, Faculty of Medicine, Aligarh Muslim University, India.
Cell Mol Life Sci. 1997 Jan;53(1):13-23. doi: 10.1007/pl00000575.
Avian egg whites are a rich source of protein inhibitors of proteinases belonging to all four mechanistic classes. Ovomucoid and ovoinhibitor are multidomain Kazal-type inhibitors with each domain containing an actual or putative reactive site for a serine proteinase. Cystatin is a cysteine proteinase inhibitor, while ovostatin inhibits proteinases of all four mechanistic classes. In this review we have summarized the general features, isolation, inhibitory mechanism and evolutionary aspects of these inhibitors.
禽蛋清是属于所有四种机制类别的蛋白酶的蛋白质抑制剂的丰富来源。卵类黏蛋白和卵抑制剂是多结构域的卡扎尔型抑制剂,每个结构域都含有一个针对丝氨酸蛋白酶的实际或推定的活性位点。胱抑素是一种半胱氨酸蛋白酶抑制剂,而卵抑素则抑制所有四种机制类别的蛋白酶。在这篇综述中,我们总结了这些抑制剂的一般特征、分离方法、抑制机制和进化方面。