DAX-J2™ Ratio 580/460
DAX-J2™ Ratio 580/460 is a new nitric oxide (NO) sensor recently developed by AAT Bioquest. It is a cell permeable reagent that can measure free NO and nitric oxide synthase (NOS) activity in living cells in a ratiometric mode under physiological conditions. Once inside the cell the blocking groups on the DAX-J2 reagent are released to induce fluorescence ratio changes at wavelengths of 580 and 460 nm upon NO oxidation. The fluorescence intensities at 580 nm and 460 nm can be detected using the filter sets of Cy3®/TRITC and BD Horizon™ V450/Pacific Blue. These two filter sets are equipped with most of flow cytometers and fluorescence microscope. DAX-J2 Ratio 580/460 has distinct advantages for NO detection than the popular DAF-2 NO probe: 1). It does not require esterase activity for NO detection. DAF-2 requires intracellular esterases to cleave its acetate groups for detecting NO activity. This esterase dependence often complicates the NO detection since esterse activities are affected by cell health and many other factors. 2). DAX-J2 product exhibits pH-independent fluorescence while DAF-2 has its fluorescence highly affected by pH. 3). DAX-J2 Ratio 580/460 can be monitored in a ratiometric mode.
Calculators
Common stock solution preparation
Table 1. Volume of DMSO needed to reconstitute specific mass of DAX-J2™ Ratio 580/460 to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.
0.1 mg | 0.5 mg | 1 mg | 5 mg | 10 mg | |
1 mM | 120.341 µL | 601.706 µL | 1.203 mL | 6.017 mL | 12.034 mL |
5 mM | 24.068 µL | 120.341 µL | 240.683 µL | 1.203 mL | 2.407 mL |
10 mM | 12.034 µL | 60.171 µL | 120.341 µL | 601.706 µL | 1.203 mL |
Molarity calculator
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Citations
View all 2 citations: Citation Explorer
Fluorescent real-time quantitative measurements of intracellular peroxynitrite generation and inhibition
Authors: Luo, Zhen and Zhao, Qin and Liu, Jixiang and Liao, Jinfang and Peng, Ruogu and Xi, Yunting and Diwu, Zhenjun
Journal: Analytical biochemistry (2017): 44--48
Authors: Luo, Zhen and Zhao, Qin and Liu, Jixiang and Liao, Jinfang and Peng, Ruogu and Xi, Yunting and Diwu, Zhenjun
Journal: Analytical biochemistry (2017): 44--48
Inducible Nitric Oxide Synthase (iNOS) Is a Novel Negative Regulator of Hematopoietic Stem/Progenitor Cell Trafficking
Authors: Adamiak, Mateusz and Abdelbaset-Ismail, Ahmed and Moore, Joseph B and Zhao, J and Abdel-Latif, Ahmed and Wysoczynski, Marcin and Ratajczak, Mariusz Z
Journal: Stem Cell Reviews and Reports (2016): 1--12
Authors: Adamiak, Mateusz and Abdelbaset-Ismail, Ahmed and Moore, Joseph B and Zhao, J and Abdel-Latif, Ahmed and Wysoczynski, Marcin and Ratajczak, Mariusz Z
Journal: Stem Cell Reviews and Reports (2016): 1--12
References
View all 139 references: Citation Explorer
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Authors: Uhlenhut K, Hogger P.
Journal: Free Radic Biol Med (2012): 2266
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Journal: J Cell Physiol (2012): 2511
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Authors: Zhou X, He P.
Journal: Am J Physiol Heart Circ Physiol (2011): H108
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Authors: Zhou X, He P.
Journal: Am J Physiol Heart Circ Physiol (2011): H1788
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