Dynamics and Hydration of the Active Sites of Mammalian Cytochromes P450 Probed by Molecular Dynamics Simulations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F12%3A33141140" target="_blank" >RIV/61989592:15310/12:33141140 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15110/12:33141140 RIV/61989592:15310/12:33138628

Výsledek na webu

<a href="http://dx.doi.org/10.2174/138920012798918408" target="_blank" >http://dx.doi.org/10.2174/138920012798918408</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2174/138920012798918408" target="_blank" >10.2174/138920012798918408</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamics and Hydration of the Active Sites of Mammalian Cytochromes P450 Probed by Molecular Dynamics Simulations

Popis výsledku v původním jazyce

The flexibility, active site volume, solvation, and access path dynamics of six metabolically active mammalian cytochromes P450 (human 2A6, 2C9, 2D6, 2E1, 3A4 and rabbit 2B4) are extensively studied using molecular dynamics (MD) simulations. On average,the enzymes' overall structures equilibrate on a 50+ ns timescale. The very open CYP2B4 structure closes slowly over the course of the simulation. The volumes of the active sites fluctuate by more than 50% during the MD runs; these fluctuations are mainly due to movements of the main chains, with only a handful of amino acid residues in CYP2B4, CYP2D6, CYP2A6 and CYP2C9 showing significant independent side chain movement. The volume of the active site of CYP2E1 fluctuates heavily, ranging from 220 to 1310 ?3, due to the opening and closing of gates to two adjacent cavities. CYP2E1 has the least hydrated active site of the studied CYPs; this is consistent with its preference for non-polar substrates. The CYP2A6 and CYP2E1 active sites ar

Název v anglickém jazyce

Dynamics and Hydration of the Active Sites of Mammalian Cytochromes P450 Probed by Molecular Dynamics Simulations

Popis výsledku anglicky

The flexibility, active site volume, solvation, and access path dynamics of six metabolically active mammalian cytochromes P450 (human 2A6, 2C9, 2D6, 2E1, 3A4 and rabbit 2B4) are extensively studied using molecular dynamics (MD) simulations. On average,the enzymes' overall structures equilibrate on a 50+ ns timescale. The very open CYP2B4 structure closes slowly over the course of the simulation. The volumes of the active sites fluctuate by more than 50% during the MD runs; these fluctuations are mainly due to movements of the main chains, with only a handful of amino acid residues in CYP2B4, CYP2D6, CYP2A6 and CYP2C9 showing significant independent side chain movement. The volume of the active site of CYP2E1 fluctuates heavily, ranging from 220 to 1310 ?3, due to the opening and closing of gates to two adjacent cavities. CYP2E1 has the least hydrated active site of the studied CYPs; this is consistent with its preference for non-polar substrates. The CYP2A6 and CYP2E1 active sites ar

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Current Drug Metabolism

ISSN

1389-2002

e-ISSN

—

Svazek periodika

13

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

177-189

Kód UT WoS článku

000300417500006

EID výsledku v databázi Scopus

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