产品名称
组织蛋白酶 D 来源于人类肝脏, lyophilized powder, ≥250 units/mg protein (E1%/280)
form
lyophilized powder
specific activity
≥250 units/mg protein (E1%/280)
mol wt
~45 kDa
color
white
UniProt accession no.
storage temp.
−20°C
Quality Level
Gene Information
human ... CTSD(1509)
Application
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
Biochem/physiol Actions
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。
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。
General description
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。
Other Notes
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）。
等电聚焦观察到含有α、β和γ同工酶。
Physical form
含磷酸钠缓冲盐的粉末。
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
常规特殊物品
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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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Endogenous Peptide Inhibitor of CXCR4 (EPI-X4) is a natural antagonist of the CXC chemokine receptor 4 (CXCR4). EPI-X4 is a 16-mer peptide that is released from human serum albumin (HSA) by acidic aspartic proteases such as Cathepsin D and E.
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