Cathepsins B， C， H， L， S， V， X/Z/P and 1 are cysteine proteases of the papain family. Cathepsin C is also known as DPPI（dipeptidyl-peptidase I). Cathepsin A is a serine carboxypeptidase and Cathepsin D and E are aspartic proteases. As lysosomal proteases， cathepsins play an important role in protein degradation. Because of their redistribution or increased levels in human and animal tumors， cathepsins may have a role in invasion and metastasis. Cathepsins are synthesized as inactive proenzymes and processed to become mature and active enzymes. Endogenous protein inhibitors， such as cystatins and some serpins， inhibit active enzymes.
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该【CTSL1】重组人组织蛋白酶-LRecombinant Human Cathepsin-L是Prospec品牌中国区域代理商艾美捷科技产品，具体的蛋白序列可查看提供的英文版本产品说明书。
