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形狀
lyophilized powder
品質等級
比活性
≥250 units/mg protein (E1%/280)
分子量
~45 kDa
顏色
white
UniProt登錄號
儲存溫度
−20°C
基因資訊
human ... CTSD(1509)
一般說明
组织蛋白酶D是一种天冬氨酸蛋白酶，位于溶酶体中。它可参与蛋白质分解代谢并维持激素和抗原的加工过程。组织蛋白酶D与肿瘤形成和神经退行性改变有关。它可调节溶酶体蛋白水解和内源性纤维蛋白溶解。
應用
来自人肝脏的组织蛋白酶D已被用于：
- β分泌酶活性测定
- 酶降解淀粉样β1-42
- 人包皮成纤维细胞的显微注射
生化／生理作用
组织蛋白酶D是一种内体-溶酶体天冬氨酸蛋白酶，与乳腺癌转移和阿尔茨海默病有关。在细胞凋亡的人包皮成纤维细胞中，发现组织蛋白酶D的溶酶体释放先于细胞色素c的释放和膜电位的丧失。诱导凋亡后12至24小时，PC12细胞中的组织蛋白酶D水平升高。
其他說明
等电聚焦观察到含有α、β和γ同工酶。
單位定義
在pH3.3，37°C条件下，一单位可在30分钟内导致A280 增加1.0个单位，该活性利用酸变性血红蛋白作为底物，通过TCA可溶产物进行测定（1 cm光路）。
外觀
含磷酸钠缓冲盐的粉末。
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
其他客户在看
Aspartic Proteinases Physiology and Pathology (1995)
Platelet membrane beta-secretase activity in mild cognitive impairment and conversion to dementia: a longitudinal study
McGuinness B, et al.
Journal of Alzheimer'S Disease, 49(4), 1095-1103 (2016)
Jeane do Nascimento Moraes et al.
The journal of venomous animals and toxins including tropical diseases, 28, e20220002-e20220002 (2022-11-22)
Cathepsin D (CatD) is a lysosomal proteolytic enzyme expressed in almost all tissues and organs. This protease is a multifunctional enzyme responsible for essential biological processes such as cell cycle regulation, differentiation, migration, tissue remodeling, neuronal growth, ovulation, and apoptosis.
Mengjie Ma et al.
Molecules (Basel, Switzerland), 28(13) (2023-07-14)
In this study, cathepsin D was oxidized in vitro with different concentrations of H2O2, and the activity, structure, and extent of myofibrillar protein degradation by oxidized cathepsin D were evaluated. The sulfhydryl content of cathepsin D decreased to 9.20% after
Marie Maynadier et al.
Journal of controlled release : official journal of the Controlled Release Society, 171(2), 251-257 (2013-08-01)
Implication of the intracellular proteolytic activity of Cathepsin D (CathD), a lysosomal aspartyl-protease overexpressed in numerous solid tumors, has been evidenced on tumor growth. Its intracellular inhibition by potent inhibitors such as pepstatin constitutes a relevant but challenging molecular target.
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