产品说明
一般描述
Apoptosis is an evolutionarily conserved form of cell suicide, which follows a specialized cellular process. The central component of this process is a cascade of proteolytic enzymes called caspases. These enzymes participate in a series of reactions that are triggered in response to pro-apoptotic signals and result in the cleavage of protein substrates, causing the disassembly of the cell1.
Caspases have been identified in organisms ranging from C. elegans to humans. The mammalian caspases play distinct roles in apoptosis and inflammation. In apoptosis, caspases are responsible for proteolytic cleavages that lead to cell disassembly (effector caspases), and are involved in upstream regulatory events (initiator caspases). An active caspase consists of two large and two small subunits that form two heterodimers, which associate in a tetramer2-4. In common with other proteases, caspases are synthesized as precursors that undergo proteolytic maturation, either autocatalytically or in a cascade by enzymes with similar specificity5.
Caspase enzymes specifically recognize a 4 or 5 amino acid sequence on the target substrate, which necessarily includes an aspartic acid residue. This residue is the target for cleavage, which occurs at the carbonyl end of the aspartic acid residue6. Caspases can be detected via immunoprecipitation, immunoblotting techniques using caspase specific antibodies, or by employing fluorochrome substrates, which become fluorescent upon cleavage by the caspase.
应用
The CHEMICON® CaspaTag
Test Principle
CHEMICON
Research Category
Apoptosis & Cancer
The CaspaTag Caspase-9 In Situ Assay Kit, Fluorescein for flow cytometry is a fluorescent-based assay for detection of active caspase-9 in cells undergoing apoptosis.
组分
FLICA Reagent (FAM-LEHD-FMK): One lyophilized vial
10X Wash Buffer: 15 mL
Fixative: 6 mL
Propidium Iodide: 1 mL at 250 μg/mL, ready-to-use
Hoechst Stain: 1 mL at 200 μg/mL, ready-to-use
储存及稳定性
· Store unopened kit materials at 2-8°C up to their expiration date.
· Reconstituted FLICA Reagent (150X) should be frozen at -20°C for up to 6 months, and may be thawed twice during this time. Aliquot into separate amber tubes if desired. Protect from light at all times.
· Store diluted (1X) wash buffer up to -20°C for 2 weeks.
法律信息
CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany
免责声明
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
基本信息
eCl@ss | 32161000 |
产品性质
质量水平 | 100 |
species reactivity (predicted by homology) | mammals |
manufacturer/tradename | CaspaTag Chemicon® |
technique(s) | activity assay: suitable flow cytometry: suitable |
NCBI登记号 | NM_001080124.1 NM_001080125.1 NM_001228.4 NM_033355.3 NM_033356.3 NM_033358.3 |
UniProt登记号 | Q14790 |
detection method | fluorometric |
运输 | wet ice |
安全信息
储存分类代码 | 10 - Combustible liquids |