Project information
Application of capillary zone electrophoresis for the study of enzymes
- Project Identification
- GA203/03/1125
- Project Period
- 1/2003 - 1/2005
- Investor / Pogramme / Project type
-
Czech Science Foundation
- Standard Projects
- MU Faculty or unit
- Faculty of Science
- Keywords
- Capillary Zone Electrophoresis; Enzymes; Electrophoretically Mediated Microanalysis; EMMA
The aim of the project is to improve and enlarge the applicability of CZE especially its modification EMMA (Electrophoretically Mediated MicroAnalysis) method for the assay and study of enzymes. EMMA utilizes differential electrophoretic mobilities of enzyme, substrate and product. After the application of an electric field, enzymatic reaction takes place and the resultant reaction product and the unreacted substrate are electrophoretically transported towards detector, where they are individually detected. Special attention will be paid on the combination of the EMMA methodology with a partial filling technique. In this set-up the part of the capillary is filled with the buffer best possible for the enzymatic reaction whereas the rest of the capillary with the background electrolyte optimal for separation of substrate and product. The basic limitation of EMMA method – the necessity to have the electrophoretic conditions compatible with both the separation of substrate(s) and product(s) of the enzymatic reaction and the enzymatic reaction – is thus overcome. This methodology will be:
- apply the EMMA method for assay and study of model enzymes, their basic kinetic parameters and
the kinetic mechanisms, especially in the case of bi-substrate enzymatic reaction
- apply the EMMA method for study of parameters effecting enzymatic reactions
- apply the EMMA method for study of inhibition of enzymes and elucidation of the inhibition types
- used for developing a new method of cyanide determination after its conversion on thiocyanate
Publications
Total number of publications: 17
2003
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CAPILLARY ELECTROPHORESIS AS A TOOL FOR THE STUDY OF ENZYMES
Proceeding of 15th Internationa Conference "Chromatographic Methods and Human Health", year: 2003
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Determination of homocysteine in human plasma by mekc and in-capillary detection reaction with 2,2-dipyridyldisulfide
Journal of Chromatography A, year: 2003, volume: 990, edition: (1+2)
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Determination of The Kinetic Parameters of Haloalkane Dehalogenase by EMMA In a Partially Filled Capillary
Proceeding of 27th Symposium on HPLC and Related Techniques, year: 2003
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Inhibition study of rhodanese by means of electrophoretically mediated microanalysis
Journal of Chromatography A, year: 2003, volume: 990, edition: (1+2)
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Review: Advances in Capillary Electrophoretically Mediated Microanalysis
Electrophoresis, year: 2003, volume: 24, edition: 22-23
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Specific determination of cysteine in human urine by capillary micellar electrokinetic chromatography
Journal of Separation Science, year: 2003, volume: 26, edition: 8
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Study of Enzyme Kinetics of Phenol Sulfotransferase using EMMA
Proceeding of 27th Symposium on HPLC and Related Techniques, year: 2003