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浙江大学医学院段树民院士团队Cell Research发文报道溶酶体蛋白酶cathepsin D具有pH及构象依赖的双重酶活性（图）
浙江大学医学院 段树民院士 Cell Research 溶酶体蛋白酶 cathepsin D pH 构象依赖 双重酶活性
2021/2/4
溶酶体中存在多种负责降解多肽或蛋白质的蛋白水解酶。为确保它们在特定部位与环境发挥催化作用、避免“滥杀无辜”，蛋白水解酶通常以酶原的形式在囊泡内大量储存。在传统认识中，酶原是不具有催化活性的前体蛋白。然而，酶原在功能上真的只是“沉默的大多数”吗？
目前关于组织蛋白酶（cathepsin）在猪繁殖与呼吸综合征病毒（porcine reproductive and respiratory syndrome virus，PRRSV）生活周期中发挥功能的研究较少。为了探究宿主细胞中cathepsin在PRRSV吸附、入侵、脱壳、生物合成、组装以及释放过程中的作用，选取源于MA-104的非洲绿猴胚胎肾上皮细胞Marc145细胞系（对PRRSV易感）；...
STRUCTURAL BIOLOGY AND PHARMACOLOGY OF HUMAN CATHEPSIN A AND NEURAMINIDASE 1
Cathepsin A Neuraminidase Lysosomal storage diseases sialidosis Galactosialidosis serine carboxypeptidase
2014/12/10
Human cathepsin A (also known as Protective Protein/Cathepsin A, PPCA; E.C. 3.4.16.5) is a lysosomal serine carboxypeptidase. Cathepsin A is also involved in a complex with two other lysosomal enzymes...
Involvement of Cathepsin D in Apoptosis of Mammary Epithelial Cells
Cathepsin D Apoptosis Mammary Epithelial Cells
2016/4/21
During involution of the mammary gland after the lactation period, the gland undergoes an extensive epithelial cell death. In our previous study, overexpression of an extracellular proteinase inhibito...