Determination of the Kinetic Parameters of Rhodanese by
Electrophoretically Mediated Microanalysis in a Partially
Filled Capillary

D 2001

Determination of the Kinetic Parameters of Rhodanese by Electrophoretically Mediated Microanalysis in a Partially Filled Capillary

NOVÁKOVÁ, Soňa and Zdeněk GLATZ

Basic information

Original name

Determination of the Kinetic Parameters of Rhodanese by Electrophoretically Mediated Microanalysis in a Partially Filled Capillary

Authors

NOVÁKOVÁ, Soňa and Zdeněk GLATZ

Edition

Prague, Book of abstract 2nd International symposium "Separations in BioSciences SBS 2001" p. 112-112, 2001

Publisher

Czech Chemical Society

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/01:00004410

Organization unit

Faculty of Science

ISBN

80-7080-437-8

Keywords in English

EMMA rhodanese

Abstract

V originále

Recently, a new application for the evaluation of enzymatic reactions in capillary electrophoresis was proposed, electrophoretically mediated microanalysis (EMMA). In this technique, substrate(s) and enzyme are introduced in the capillary as distinct plugs, the first analyte injected being the one with the lower electrophoretic mobility. Upon the application of an electric field, the two zones interpenetrate due the differences in their electrophoretic mobilities. Enzymatic reaction takes place and the resultant reaction product(s) and the unreacted substrate(s) are electrophoretically transported towards detector, where they are individually detected. In this communication the EMMA technique in was applied to determine the kinetic parameters of rhodanese - temperature optimum, KM for thiosulfate and cyanide and type of kinetic mechanism of enzymatic reaction. Rhodanese (thiosulfate: cyanide sulfur transferase, EC 2.8.1.1) was discovered in 1933 by Lang. It is responsible for the transfer of the sulfane sulfur of thiosulfate to an acceptor, which is likely to be cyanide under some physiological conditions: S2O32- + CN- Ąú SCN- + SO32- Rhodaneses are practically ubiquitous enzymes, their activity has been detected in several species ranging from microorganisms through fungi, plants and animals to man. In bacteria the enzyme was found in a variety of heterotrophic, photolithotrophic species as well as certain chemolithotrophic organisms including Thiobacillus sp.

Links

GA525/00/0785, research and development project

Name: Acidifikační procesy v sulfidových odpadech

Investor: Czech Science Foundation, Acidification processes in sulfide wastes

Citovat

NOVÁKOVÁ, Soňa and Zdeněk GLATZ. Determination of the Kinetic Parameters of Rhodanese by Electrophoretically Mediated Microanalysis in a Partially Filled Capillary. In Book of abstract 2nd International symposium "Separations in BioSciences SBS 2001". Prague: Czech Chemical Society, 2001, p. 112. ISBN 80-7080-437-8.

@inproceedings{368375,
   author = {Nováková, Soňa and Glatz, Zdeněk},
   address = {Prague},
   booktitle = {Book of abstract 2nd International symposium "Separations in BioSciences SBS 2001"},
   keywords = {EMMA rhodanese},
   language = {eng},
   location = {Prague},
   isbn = {80-7080-437-8},
   pages = {112-112},
   publisher = {Czech Chemical Society},
   title = {Determination of the Kinetic Parameters of Rhodanese by Electrophoretically Mediated Microanalysis in a Partially Filled Capillary},
   year = {2001}
}

TY  - JOUR
ID  - 368375
AU  - Nováková, Soňa - Glatz, Zdeněk
PY  - 2001
TI  - Determination of the Kinetic Parameters of Rhodanese by Electrophoretically Mediated Microanalysis in a Partially Filled Capillary
PB  - Czech Chemical Society
CY  - Prague
SN  - 8070804378
KW  - EMMA rhodanese
N2  - Recently, a new application for the evaluation of enzymatic reactions in capillary electrophoresis was proposed, electrophoretically mediated microanalysis (EMMA). In this technique, substrate(s) and enzyme are introduced in the capillary as distinct plugs, the first analyte injected being the one with the lower electrophoretic mobility. Upon the application of an electric field, the two zones interpenetrate due the differences in their electrophoretic mobilities. Enzymatic reaction takes place and the resultant reaction product(s) and the unreacted substrate(s) are electrophoretically transported towards detector, where they are individually detected. In this communication the EMMA technique in was applied to determine the kinetic parameters of rhodanese - temperature optimum, KM for thiosulfate and cyanide and type of kinetic mechanism of enzymatic reaction. Rhodanese (thiosulfate: cyanide sulfur transferase, EC 2.8.1.1) was discovered in 1933 by Lang. It is responsible for the transfer of the sulfane sulfur of thiosulfate to an acceptor, which is likely to be cyanide under some physiological conditions: S2O32- + CN- Ąú SCN- + SO32- Rhodaneses are practically ubiquitous enzymes, their activity has been detected in several species ranging from microorganisms through fungi, plants and animals to man. In bacteria the enzyme was found in a variety of heterotrophic, photolithotrophic species as well as certain chemolithotrophic organisms including Thiobacillus sp.
ER  -

NOVÁKOVÁ, Soňa and Zdeněk GLATZ. Determination of the Kinetic Parameters of Rhodanese by Electrophoretically Mediated Microanalysis in a Partially Filled Capillary. In \textit{Book of abstract 2nd International symposium ''Separations in BioSciences SBS 2001''}. Prague: Czech Chemical Society, 2001, p.~112. ISBN~80-7080-437-8.

Detailed Information on Publication Record