Nucleation of the crystalline phase of proteins in the presence of semidilute non-adsorbing polymer

Details Nucleation of the crystalline phase of proteins in the presence of semidilute non-adsorbing polymer Nucleation of the crystalline phase of proteins in the presence of semidilute non-adsorbing polymer

2001-02-14

arxiv.org/abs/cond-mat/0102253v1

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 1 figure

Scientific paper

10.1063/1.1376163

Starting from a protein solution which is metastable with respect to the crystalline phase, the effect of adding semidilute non-adsorbing polymer is considered. It is found to increase the chemical potential of the protein by a few tenths of kT, which may be enough to lower the barrier to nucleation of the crystalline phase by enough to allow crystallisation. It is also shown that assuming that the polymer induces a pairwise additive attraction leads to qualitatively incorrect results.

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