The Problem of the "Prebiotic and Never Born Proteins"

Details The Problem of the "Prebiotic and Never Born Proteins" The Problem of the "Prebiotic and Never Born Proteins"

2009-07-31

arxiv.org/abs/0907.5578v1

Physics

General Physics

14 Pages

Scientific paper

It has been argued that the limited set of proteins used by life as we know it could not have arisen by the process of Darwinian selection from all possible proteins. This probabilistic argument has a number of implicit assumptions that may not be warranted. A variety of considerations are presented to show that the number of amino-acid sequences that need have been sampled during the evolution of proteins is far smaller than assumed by the argument.

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