About: Biochemistry and physiological functions of cytokinin dehydrogenase in plants

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	V článku je popsána biochemie a fyziologické funkce cytokinindehydrogenasy v rostlinách. (cs) Degradation of growth hormones cytokinins in plants is controlled by flavoprotein cytokinin dehydrogenase (EC 1.5.99.12)1. This enzyme is encoded in individual species by multiple genes that show mutual evolutionary relations. Best studied gene family of Arabidopsis thaliana contains seven genes that appear to have different cellular and tissue targeting, thus achieving distinct functions during the development 1,2. The enzyme is a typical flavoprotein with covalently bound FAD in the catalytic centre that is buried in the hydrophobic pocket of the protein. Results of site-directed mutagenesis reveal C-terminus as an important domain for functional conformation of the enzyme. The cytokinin cleavage proceeds by #concerted covalent catalysis# via a ternary complex involving covalently bound FAD cofactor and a quinonic electron acceptor3. The enzyme is capable of using DCPIP and some p-quinones as electron acceptors, while oxygen is almost ineffective. Natural electron acceptor of the enzyme is not yet k Degradation of growth hormones cytokinins in plants is controlled by flavoprotein cytokinin dehydrogenase (EC 1.5.99.12)1. This enzyme is encoded in individual species by multiple genes that show mutual evolutionary relations. Best studied gene family of Arabidopsis thaliana contains seven genes that appear to have different cellular and tissue targeting, thus achieving distinct functions during the development 1,2. The enzyme is a typical flavoprotein with covalently bound FAD in the catalytic centre that is buried in the hydrophobic pocket of the protein. Results of site-directed mutagenesis reveal C-terminus as an important domain for functional conformation of the enzyme. The cytokinin cleavage proceeds by #concerted covalent catalysis# via a ternary complex involving covalently bound FAD cofactor and a quinonic electron acceptor3. The enzyme is capable of using DCPIP and some p-quinones as electron acceptors, while oxygen is almost ineffective. Natural electron acceptor of the enzyme is not yet k (en)
Title	Biochemie a fyziologické funkce cytokinindehydrogenasy v rostlinách (cs) Biochemistry and physiological functions of cytokinin dehydrogenase in plants Biochemistry and physiological functions of cytokinin dehydrogenase in plants (en)
skos:prefLabel	Biochemie a fyziologické funkce cytokinindehydrogenasy v rostlinách (cs) Biochemistry and physiological functions of cytokinin dehydrogenase in plants Biochemistry and physiological functions of cytokinin dehydrogenase in plants (en)
skos:notation	RIV/61989592:15310/04:00002096!RIV/2005/GA0/153105/N
http://linked.open.../vavai/riv/strany	23
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA522/03/0979), Z(MSM 153100008)
http://linked.open...iv/cisloPeriodika	S
http://linked.open...vai/riv/dodaniDat	2005
http://linked.open...aciTvurceVysledku	Drábek, Jiří Frébort, Ivo Frébortová, Jitka Galuszka, Petr Popelková, Hana
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	556164
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/04:00002096
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cytokinin oxidase/dehydrogenase;cytokinin metabolism (en)
http://linked.open.../riv/klicoveSlovo	cytokinin metabolism cytokinin oxidase/dehydrogenase
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[D0ACCA17198B]
http://linked.open...i/riv/nazevZdroje	Acta Universitatis Palackianae Olomucensis, Facultas Rerum Naturalium, Chemica
http://linked.open...in/vavai/riv/obor	CE
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Organization of cytokinin dehydrogenase genes in cereals and mechanism of the catalytic reaction of cytokinin degradation
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	43
http://linked.open...iv/tvurceVysledku	Drábek, Jiří Popelková, Hana Frébort, Ivo Frébortová, Jitka Galuszka, Petr
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20153100008
issn	0232-0061
number of pages	275 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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