About: Electrochemical determination of cysteine-containing biomolecules by means of catalytic reactions on a mercury electrode

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About: Electrochemical determination of cysteine-containing biomolecules by means of catalytic reactions on a mercury electrode Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The group cysteine-containing peptides (metallothioneines, phytochelatins, and glutathione) plays an important role in active homeostasis and detoxification of metals in animal, plant, and/or microorganism cells. In this study we describe a novel approach to electroanalysis of cys-containing peptides and proteins. This approach is based on catalytic processes (presodium wave, peak H, Brdicka current) proceeding at negative potentials (ca. 1.8 V, Ag/AgCl/3M KCl) on the hanging mercury drop electrode (HMDE). A presodium wave is current-potential response accompanied with catalytic hydrogen evolution from aqueous solutions in the presence of proteins. It was found that the sulfhydryl(SH) groups in proteins are responsible for presodium catalytic processes. The highest sensitivity in the determination was observed with derivative chronopotentiometric stripping analysis (CPSA), which monitored the catalytic signal known as peak H. The determination of the low content of Cys-peptides was successfully perfor The group cysteine-containing peptides (metallothioneines, phytochelatins, and glutathione) plays an important role in active homeostasis and detoxification of metals in animal, plant, and/or microorganism cells. In this study we describe a novel approach to electroanalysis of cys-containing peptides and proteins. This approach is based on catalytic processes (presodium wave, peak H, Brdicka current) proceeding at negative potentials (ca. 1.8 V, Ag/AgCl/3M KCl) on the hanging mercury drop electrode (HMDE). A presodium wave is current-potential response accompanied with catalytic hydrogen evolution from aqueous solutions in the presence of proteins. It was found that the sulfhydryl(SH) groups in proteins are responsible for presodium catalytic processes. The highest sensitivity in the determination was observed with derivative chronopotentiometric stripping analysis (CPSA), which monitored the catalytic signal known as peak H. The determination of the low content of Cys-peptides was successfully perfor (en) Elektrochemické stanovení biomolekul obsahujících cystein pomocí katalytických reakcí na rtuové elektrod. (cs)
Title	Elektrochemické stanovení biomolekul obsahujících cystein pomocí katalytických reakcí na rtuové elektrod (cs) Electrochemical determination of cysteine-containing biomolecules by means of catalytic reactions on a mercury electrode Electrochemical determination of cysteine-containing biomolecules by means of catalytic reactions on a mercury electrode (en)
skos:prefLabel	Elektrochemické stanovení biomolekul obsahujících cystein pomocí katalytických reakcí na rtuové elektrod (cs) Electrochemical determination of cysteine-containing biomolecules by means of catalytic reactions on a mercury electrode Electrochemical determination of cysteine-containing biomolecules by means of catalytic reactions on a mercury electrode (en)
skos:notation	RIV/00216224:14310/04:00011235!RIV08-AV0-14310___
http://linked.open.../vavai/riv/strany	431 - 431
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA203/02/0422), P(IAA1163201)
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Jelen, František Trnková, Libuše Kizek, René
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	562506
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/04:00011235
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	metallothioneines; phytochelatins; glutathione; mercury electrode; catalytic reactions; Brdicka reaction; peak H (en)
http://linked.open.../riv/klicoveSlovo	phytochelatins metallothioneines peak H glutathione mercury electrode catalytic reactions Brdicka reaction
http://linked.open...ontrolniKodProRIV	[5FBFD2E3DA67]
http://linked.open...v/mistoKonaniAkce	Thessaloniki, Greece
http://linked.open...i/riv/mistoVydani	Thessaloniki, Greece
http://linked.open...i/riv/nazevZdroje	Book of Abstracts - 55th Annual Meeting of the ISE
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	New trends in electrochemistry of nucleic acids and their applications in enviromental chemistry Application of adsorptive transfer and elemination techniques in oligonucleotides and nucleic acids analysis.
http://linked.open...UplatneniVysledku	2004
http://linked.open...iv/tvurceVysledku	Kizek, René Trnková, Libuše Vacek, Jan Jelen, František
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2004-02-19 (xsd:date)
number of pages	1 (xsd:int)
http://purl.org/ne...btex#hasPublisher	International Society of Electrochemistry
http://localhost/t...ganizacniJednotka	14310

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