| Literature DB >> 16612584 |
Daniel Lavalette1, Mark A Hink, Martine Tourbez, Catherine Tétreau, Antonie J Visser.
Abstract
Translational and rotational diffusion coefficients of proteins in solution strongly deviate from the Stokes-Einstein laws when the ambient viscosity is induced by macromolecular co-solutes rather than by a solvent of negligible size as was assumed by A. Einstein one century ago for deriving the laws of Brownian motion and diffusion. Rotational and translational motions experience different micro viscosities and both become a function of the size ratio of protein and macromolecular co-solute. Possible consequences upon fluorescence spectroscopy observations of diffusing proteins within living cells are discussed.Mesh:
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Year: 2006 PMID: 16612584 DOI: 10.1007/s00249-006-0060-z
Source DB: PubMed Journal: Eur Biophys J ISSN: 0175-7571 Impact factor: 1.733