Английская Википедия:Fura-2-acetoxymethyl ester
Fura-2-acetoxymethyl ester, often abbreviated Fura-2AM, is a membrane-permeant derivative of the ratiometric calcium indicator Fura-2 used in biochemistry to measure cellular calcium concentrations by fluorescence.[1] When added to cells, Fura-2AM crosses cell membranes and once inside the cell, the acetoxymethyl groups are removed by cellular esterases. Removal of the acetoxymethyl esters regenerates "Fura-2", the pentacarboxylate calcium indicator. Measurement of Ca2+-induced fluorescence at both 340 nm and 380 nm allows for calculation of calcium concentrations based 340/380 ratios. The use of the ratio automatically cancels out certain variables such as local differences in fura-2 concentration or cell thickness that would otherwise lead to artifacts when attempting to image calcium concentrations in cells.
References
- Английская Википедия
- Biochemistry methods
- Cell culture reagents
- Cell imaging
- Fluorescent dyes
- Oxazoles
- Benzofuran ethers at the benzene ring
- Acetate esters
- Formals
- Glycol ethers
- Anilines
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