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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