推薦產品
生物源
human liver
品質等級
形狀
solution
比活性
≥0.5 units/mg protein
技術
activity assay: suitable
pH值範圍
4.5—5.5
UniProt登錄號
應用
pharmaceutical
運輸包裝
dry ice
儲存溫度
−20°C
基因資訊
human ... CTSL1(1514)
一般說明
组织蛋白酶 L(CTSL)基因定位于人类染色体 9q21.33。它编码一种属于肽酶 C1 家族的溶酶体半胱氨酸蛋白酶。该酶是由二硫键连接的重链(175 个氨基酸)和轻链(42 个氨基酸)的一个二聚体。
應用
来自人类肝脏的组织蛋白酶 L(CTSL)已用于:
- 体外消化突变转化生长因子β-诱导的(TGFBIp)和 LC3(自噬体标记)蛋白
- 消化黑色素体前蛋白(Pmel17)重复结构域(RPT)异构体的 pH 依赖性原纤维,并通过色氨酸荧光研究 pH 对 sRPT 聚集动力学的影响
- 在无细胞系统中分析小分子或药物对 CTSL 的抑制作用
生化/生理作用
组织蛋白酶 L(CTSL)表现出内肽酶活性,并破坏与芳香残基的肽键。该酶在 pH 3.0–6.5 下与硫醇化合物一起发挥作用。弹性蛋白、胶原蛋白和 α-1 蛋白酶抑制剂作为组织蛋白酶 L(CTSL)的底物。CTSL 切割多种蛋白质,包括酶、受体和转录因子。它参与抗原肽的产生并控制 B 细胞的稳态。它与肌原纤维坏死和肿瘤进展有关。CTSL 表达增加促进肿瘤转移,与肿瘤患者预后不良有关。在癌症中观察到 CTSL 的表达增加。CTSL 与多形性胶质母细胞瘤(GBM)、中东呼吸综合征(MERS)、牙龈过度生长和严重急性呼吸综合征冠状病毒 2 型(SARS-CoV-2)有关。它在多种生理蛋白质底物的降解中具有比组织蛋白酶 B 和 H 更高的比活性。
單位定義
一个酶活性单位将在pH 5.5、25℃下,每分钟水解1.0 μmole的Z-Phe-Arg-AFC。
外觀
溶于20mM丙二酸溶液,pH 5.5,含有1 mM EDTA和400 mM NaCl。
儲存類別代碼
10 - Combustible liquids
水污染物質分類(WGK)
WGK 3
閃點(°F)
Not applicable
閃點(°C)
Not applicable
分析證明 (COA)
輸入產品批次/批號來搜索 分析證明 (COA)。在產品’s標籤上找到批次和批號,寫有 ‘Lot’或‘Batch’.。
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