Interaction of Flavonoids with Zinc and Zinc-Containing Enzymes
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F22%3A00558561" target="_blank" >RIV/61388971:_____/22:00558561 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/60076658:12310/22:43904988 RIV/00216208:11160/22:10450280
Výsledek na webu
<a href="https://pubs.acs.org/doi/10.1021/acs.jafc.2c01446" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.jafc.2c01446</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jafc.2c01446" target="_blank" >10.1021/acs.jafc.2c01446</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Interaction of Flavonoids with Zinc and Zinc-Containing Enzymes
Popis výsledku v původním jazyce
The current chelation therapy has several drawbacks, including lack of selectivity, which could lead to trace metal depletion. Consequently, the proper function of metalloenzymes can be disrupted. Flavonoids possess chelating properties and hence interfere with the homeostasis of essential metals. We focused on zinc, an important trace metal required for the function of many enzymes and transcription factors. After making an initial evaluation of the Zn2+-chelating properties of a series of flavonoids, the effect of these compounds on various zinc-containing enzymes was also investigated. We performed enzyme inhibition assays spectrophotometrically using yeast and equine alcohol dehydrogenases and bovine glutamate dehydrogenase. Nine of the 21 flavonoids tested were capable of chelating Zn2+. Baicalein and 3-hydroxyflavone were the most potent Zn2+ chelators under slightly acidic and neutral pH conditions. This chelation was also confirmed by the ability to reverse Zn2+-induced enzymatic inhibition of bovine glutamate dehydrogenase. Although some flavonoids were also able to inhibit zinc-containing alcohol dehydrogenases, this inhibition was likely not caused by Zn2+ chelation. Luteolin was a relatively potent inhibitor of these enzymes regardless of the presence of Zn2+. Docking studies confirmed the binding of active flavonoids to equine alcohol dehydrogenase without any significant interaction with the catalytic zinc.
Název v anglickém jazyce
Interaction of Flavonoids with Zinc and Zinc-Containing Enzymes
Popis výsledku anglicky
The current chelation therapy has several drawbacks, including lack of selectivity, which could lead to trace metal depletion. Consequently, the proper function of metalloenzymes can be disrupted. Flavonoids possess chelating properties and hence interfere with the homeostasis of essential metals. We focused on zinc, an important trace metal required for the function of many enzymes and transcription factors. After making an initial evaluation of the Zn2+-chelating properties of a series of flavonoids, the effect of these compounds on various zinc-containing enzymes was also investigated. We performed enzyme inhibition assays spectrophotometrically using yeast and equine alcohol dehydrogenases and bovine glutamate dehydrogenase. Nine of the 21 flavonoids tested were capable of chelating Zn2+. Baicalein and 3-hydroxyflavone were the most potent Zn2+ chelators under slightly acidic and neutral pH conditions. This chelation was also confirmed by the ability to reverse Zn2+-induced enzymatic inhibition of bovine glutamate dehydrogenase. Although some flavonoids were also able to inhibit zinc-containing alcohol dehydrogenases, this inhibition was likely not caused by Zn2+ chelation. Luteolin was a relatively potent inhibitor of these enzymes regardless of the presence of Zn2+. Docking studies confirmed the binding of active flavonoids to equine alcohol dehydrogenase without any significant interaction with the catalytic zinc.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10608 - Biochemistry and molecular biology
Návaznosti výsledku
Projekt
<a href="/cs/project/EF19_073%2F0016935" target="_blank" >EF19_073/0016935: Grantová schémata na UK</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Agricultural and Food Chemistry
ISSN
0021-8561
e-ISSN
1520-5118
Svazek periodika
70
Číslo periodika v rámci svazku
20
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
11
Strana od-do
6134-6144
Kód UT WoS článku
000805989400017
EID výsledku v databázi Scopus
2-s2.0-85130735986