MCE 的所有产品仅用作科学研究或药证申报,我们不为任何个人用途提供产品和服务。
CAS No. : 1513848-14-0
MCE 国际站:TRFS-green
产品活性:TRFS-green 是一种高选择性的荧光探针,用于成像活细胞中的硒蛋白硫氧还蛋白还原酶 (TrxR)。TRFS-green 的最大吸光度在 373 nm 左右。经 TrxR 活化后,最大吸光度约为 440 nm。
研究领域:Metabolic Enzyme/Protease
作用靶点:TrxR
In Vitro: TRFS-green displays a green fluorescence off−on change induced by TrxR-mediated disulfide cleavage and subsequent intramolecular cyclization to liberate the masked naphthalimide fluorophore.
TRFS-green gives a signal at ~480 nm when excited at 377 nm. Pretreatment of living cells with TrxR inhibitors in a dose-dependent manner can inhibit the fluorescence signal of TRFS-green in living cells, thereby facilitating the development of living cell-based screening assays for TrxR inhibitors.
TRFS-green shows no response to GSH or Cys, the predominant thiols in cells, or the endogenous reducing agents, such as vitamin C and NADPH.
Measure TrxR activity in crude cell extracts: Incubate cell lysates with TRFS-green for an appropriate time (usually 1-2 hours), and measure fluorescence intensity by fluorimeter (Em= 540 nm, Ex=440 nm). It is also possible to monitor the time-dependent increase in fluorescence (Em=540 nm, Ex=440 nm) over a given period of time.
Cells treated with TRFS-green (10 μM; 2-4 h) can be observed through the green fluorescent channel of the microscope.
Note: In order to obtain a clear fluorescence image, it is recommended to wash the cells with PBS or fresh medium immediately before taking pictures to remove residual TRFS-green.
TRFS-green is the first fluorescent probe of TrxR with a green emission. However, the response rate of TRFS-green to the enzyme is slow, and it takes more than 2 h to reach the maximal fluorescence signal even using tris(2-carboxyethyl)phosphine (TCEP) as a reducing agent.
相关产品:Bioactive Compound Library Plus | Metabolism/Protease Compound Library | 8α-Tigloyloxyhirsutinolide 13-O-acetate | TrxR-IN-3 | TrxR-IN-4 | DVD-445 | CPUL1 | PMX464 | TrxR-IN-2 | Ethaselen | TP-TRFS | ROS-generating agent 1
热门产品线:重组蛋白 | 化合物库 | 天然产物 | 荧光染料 | PROTAC | 同位素标记物 | 寡核苷酸 | 抗体 | 点击化学
Trending products:Recombinant Proteins | Bioactive Screening Libraries | Natural Products | Fluorescent Dye | PROTAC | Isotope-Labeled Compounds | Oligonucleotides | Antibodies | Click Chemistry
货号: HY-115640
品牌介绍:
• MCE (MedChemExpress) 拥有200 多种全球独家化合物库,我们致力于为全球科研客户提供前沿最全的高品质小分子活性化合物;
• 50,000 多种高选择性抑制剂、激动剂涉及各热门信号通路及疾病领;
• 产品种类涵盖各种重组蛋白,多肽,常用试剂盒 ,更有 PROTAC、ADC 等特色产品,广泛应用于新药研发、生命科学等科研项目;
• 提供虚拟筛选,离子通道筛选,代谢组学分析检测分析,药物筛选等专业技术服务;
• 设有专业的实验中心和严格的质控、验证体系;
• 提供 LC/MS、NMR、HPLC、手性分析、元素分析等各项质检报告,确保产品的高纯度、高品质;
• 产品的生物活性多经各国客户实验验证;
• Nature, Cell, Science 等多种顶级期刊及制药专利收录了MCE客户的科研成果;
• 专业团队跟踪最新的制药及生命科学研究进展,为您提供全球最新的活性化合物;
• 与世界各大制药公司及知名科研机构建立了长期的合作。