Pressure induced structural changes and dimer destabilization of HIV-1 protease studied by molecular dynamics simulations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F14%3A43871922" target="_blank" >RIV/70883521:28110/14:43871922 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/c4cp03676j" target="_blank" >http://dx.doi.org/10.1039/c4cp03676j</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c4cp03676j" target="_blank" >10.1039/c4cp03676j</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pressure induced structural changes and dimer destabilization of HIV-1 protease studied by molecular dynamics simulations

Popis výsledku v původním jazyce

High-pressure methods have become attractive tools for investigation of the structural stability of proteins. Besides protein unfolding, dimerization can be studied this way, too. HIV-1 protease is a convenient target of experimental and theoretical high-pressure studies. In this study molecular-dynamics simulations are used to predict the response of HIV-1 protease to the pressure of 0.1 to 600 MPa. The protease conformation of both the monomer and the dimer is highly rigid changing insignificantly with growing pressure. Hydrophobicity of the protease decreases with increasing pressure. Water density inside the active-site cavity grows from 87% to 100% of the bulk water density within the pressure range. The dimer-dissociation volume change is negative for most of the pressure ranges with the minimum of -105 ml mol-1, except for a short interval of positive values at low pressures. The dimer is thus slightly stabilized up to 160 MPa, but strongly destabilized by higher pressures.

Název v anglickém jazyce

Pressure induced structural changes and dimer destabilization of HIV-1 protease studied by molecular dynamics simulations

Popis výsledku anglicky

High-pressure methods have become attractive tools for investigation of the structural stability of proteins. Besides protein unfolding, dimerization can be studied this way, too. HIV-1 protease is a convenient target of experimental and theoretical high-pressure studies. In this study molecular-dynamics simulations are used to predict the response of HIV-1 protease to the pressure of 0.1 to 600 MPa. The protease conformation of both the monomer and the dimer is highly rigid changing insignificantly with growing pressure. Hydrophobicity of the protease decreases with increasing pressure. Water density inside the active-site cavity grows from 87% to 100% of the bulk water density within the pressure range. The dimer-dissociation volume change is negative for most of the pressure ranges with the minimum of -105 ml mol-1, except for a short interval of positive values at low pressures. The dimer is thus slightly stabilized up to 160 MPa, but strongly destabilized by higher pressures.

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

—

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

—

Svazek periodika

16

Číslo periodika v rámci svazku

47

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

25906-25915

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—