ACES (buffer)
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| Names | |
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| Preferred IUPAC name
2-[(2-Amino-2-oxoethyl)amino]ethane-1-sulfonic acid | |
| Other names
N-(2-Acetamido)-2-aminoethanesulfonic acid | |
| Identifiers | |
3D model (JSmol) |
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| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.028.099 |
PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| C4H10N2O4S | |
| Molar mass | 182.199 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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ACES (N-(2-acetamido)-2-aminoethanesulfonic acid) is a chemical compound that is one of Good's buffers. It was developed in the 1960s to provide buffer solutions with pH ranging from 6.15-8.35 for use in various applications. With a pKa of 6.9, it is often used as a buffering agent in biological and biochemical research. It is a zwitterionic buffer with a useful buffering range of 6.1-7.5. The pioneering publication by Good and his co-workers described the synthesis and physical properties of ACES buffer.[1]
Applications
[edit]ACES had been used to develop buffers for both agarose and polyacrylamide gel electrophoresis.[2] ACES use in isoelectric focusing of proteins has also been documented.[3] Use of ACES has been published in a protocol for the analysis of bacterial autolysins in a discontinuous SDS-PAGE system.[4] Potential inhibition of ACES and other Good buffers has been investigated in γ-aminobutyric acid receptor binding to rat brain synaptic membranes.[5]
References
[edit]- ↑ Good, N.E., "Hydrogen ion buffers for biological research." "Biochemistry", 5(2), 467–477.
- ↑ Liu, Q., et al., "pK-matched running buffers for gel electrophoresis." "Anal. Biochemistry.", 270(1):112-122.
- ↑ Alonso, A., "Human α-1-antitrypsin subtyping by hybrid isoelectric focusing in miniaturized polyacrylamide gel." "Electrophoresis", 9(2):65-73.
- ↑ Strating, H., and Clarke, A.J., "Differentiation of bacterial autolysins by zymogram analysis." "Anal. Biochem.", 291(1):149-154.
- ↑ Tunnicliff, G., and Smith, J.A., "Competitive inhibition of γ-aminobutyric acid receptor binding by N-2-hydroxyethylpiperazine-N'-2-ε-ethanesulfonic acid and related buffer." "J. Neurochem.", 36(3):1122-1126.