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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
4°C, sealed storage, away from moisture and light
- 库存:
货期:1-2天
- 供应商:
MedChemExpress LLC
- CAS号:
25535-16-4
- 规格:
5 mg/10 mg/25 mg/50 mg/100 mg/500 mg
| 规格: | 5 mg | 产品价格: | ¥312.0 |
|---|---|---|---|
| 规格: | 10 mg | 产品价格: | ¥500.0 |
| 规格: | 25 mg | 产品价格: | ¥750.0 |
| 规格: | 50 mg | 产品价格: | ¥990.0 |
| 规格: | 100 mg | 产品价格: | ¥1580.0 |
| 规格: | 500 mg | 产品价格: | ¥3960.0 |
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Propidium Iodide
CAS No. : 25535-16-4
MCE 国际站:Propidium Iodide
产品活性:Propidium Iodide (PI) 是一种细胞核染色试剂,可染色 DNA。Propidium Iodide 是一种溴化乙啶的类似物,在嵌入双链 DNA 后释放红色荧光。Propidium Iodide 不能通过活细胞膜,但却能穿过破损的细胞膜而对核染色。Propidium Iodide 的荧光波长为 493/617 nm,与 DNA 嵌合后波长为 536/635 nm。Propidium Iodide 常用于细胞凋亡 (apoptosis) 或细胞坏死 (necrosis) 的检测,常用于流式细胞仪分析。
研究领域:Others
作用靶点:Fluorescent Dye
In Vitro: "General Protocol
1.Preparation of PI working solution
1.1 Preparation of the stock solution
Dissolve 1 mg PI in 1 mL DDH2O to obtain 1 mg/mL of stock solution.
Note: It is recommended to store the stock solution at -20°C or -80°C away from light and avoid repetitive freeze-thaw cycles.
1.2 Preparation of PI working solution
Dilute the stock solution in serum-free cell culture medium or PBS to obtain 20-50 μg/mL of working solution.
Note: Please adjust the concentration of PI working solution according to the actual situation.
2.Cell staining
2.1 Suspension cells(6-well plate)
a.Centrifuge at 1000 g at 4°C for 3-5 minutes and then discard the supernatant. Wash twice with PBS, 5 minutes each time.The cell density is 1×106/mL.
b.Add 1 mL of working solution, and then incubate at room temperature for 5-10 minutes.
c.Centrifuge at 400 g at 4°C for 3-4 minutes and then discard the supernatant.
d.Wash twice with PBS, 5 minutes each time.
e.Resuspend cells with serum-free cell culture medium or PBS. Observation by fluorescence microscopy or flow cytometry.
2.2 Adherent cells
a. Culture adherent cells on sterile coverslips.
b. Remove the coverslip from the medium and aspirate excess medium.
c. Add 100 μL of working solution, gently shake it to completely cover the cells,and then incubate at room temperature for 5-10 minutes.
d. Wash twice with medium, 5 minutes each time. Observation by fluorescence microscopy or flow cytometry.
Storage
-20°C, 1 year
Protect from light
Precautions
1. Please adjust the concentration of PI working solution according to the actual situation.
2. This product is for R&D use only, not for drug, household, or other uses.
3. For your safety and health, please wear a lab coat and disposable gloves to operate.
"
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文献和实验一、概述 在正常细胞中,磷脂酰丝氨酸只分布在细胞膜脂质双层的内侧,细胞发生凋亡最早期,膜磷脂酰丝氨酸(PS)由脂膜内侧翻向外侧,这一变化早于细胞皱缩、染色质浓缩、DNA片断化和细胞膜的通透性增加等凋亡现象。 AnnexinV是一种磷脂结合蛋白,与磷脂酰丝氨酸有高度亲和力,故可通过细胞外侧暴露的磷脂酰丝氨酸与凋亡早期细胞的胞膜结合。因此AnnexinV被作为检测细胞早期凋亡的灵敏指标之一。 碘化丙啶(Propidium Iodide,PI)是一种核酸染料,它不能透过完整的细胞
碘化丙啶染色1.原理 碘化丙啶(propidium iodide,PI)不能穿人完整的活细胞膜中,即正常细胞和凋亡细胞在不固定的情况下对PI拒染,而坏死细胞由于失去膜的完整性,PI可进入细胞内与DNA结合,根据此特点,使用PI染色可鉴别死细胞。如果对活细胞染色必须在染色前进行固定,以增加细胞膜对染料的通透性。2.溶液配制 使用0.01mol/LPBS(pH 7.4)配制终浓度为0.5mg/ml的PI工作液。3.染色程序(1)单层细胞培养标本经预冷70%乙醇固定1小时,4℃;(2)0.01
PI染色法(活细胞染色)检测细胞凋亡 碘化丙啶(Propidium Iodide, PI)是一种DNA 结合性染料,其激发和发射波长分别为536nm 和617nm,产生红色荧光。 【染料及试剂】 (1) 含0.1%TritonX-100的PBS缓冲液(pH7.4) (2) PI染液:将PI(碘化丙啶)溶于含0.1%TritionX-100的PBS中,终浓度为50μg/ml,含RNase 100μg/ml,避光
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