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Inhibition of protein crystallization by evolutionary negative design

Jonathan P K Doye, Ard A Louis and Michele Vendruscolo

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PERSPECTIVE

Why are proteins so hard to crystallize? We propose an 'evolutionary negative design' principle to explain this difficulty. Proteins have evolved to avoid crystallization because crystallization compromises the viability of the cell. Evolutionary negative design is supported by much evidence in the literature, including the effect of mutations on the crystallizability of a protein, the correlations found in the properties of crystal contacts in bioinformatics databases, and the positive use of protein crystallization by bacteria and viruses.


PACS

87.14.E- Proteins

87.15.N- Properties of solutions of macromolecules

87.15.B- Structure of biomolecules

Subjects

Biological physics

Dates

Issue 1 (March 2004)

Received 2 October 2003, accepted for publication 18 December 2003

Published 12 February 2004

 
Protein crystal. Image courtesy of Allan D'Arcy


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