Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 113, Issue 29, Pages 9644-9645Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp904703c
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- IIT Guwahati, Assam, India
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Molecular dynamics simulations were performed to obtain the effects of pressure on the potentials of mean force between a pair of neopentane molecules immersed in water as well as in aqueous solutions containing trimethylamine-N-oxide (TMAO). It was found that the hydrophobic attraction acting between a neopentane pair in pure water increases with increasing pressure. However, the hydrophobic attraction diminishes by the addition of TMAO even at high pressure. This strongly suggests that TMAO does not counter the pressure induced protein denaturation by enhancing hydrophobic attraction among nonpolar groups.
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