Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2000-07-05
Physics
Condensed Matter
Statistical Mechanics
5 pages, 3 figures
Scientific paper
It has been conjectured that evolution exerted pressure to preserve amino acids bearing thermodynamic, kinetic, and functional roles. In this letter we show that the physical requirement to maintain protein stability gives rise to a sequence conservatism pattern that is in remarkable agreement with that found in natural proteins. Based on the physical properties of amino acids, we propose a model of evolution that explains conserved amino acids across protein families sharing the same fold.
Dokholyan Nikolay V.
Mirny Leonid A.
Shakhnovich Eugene I.
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