Toward homochiral protocells in noncatalytic peptide systems
Populations and Evolution
2015-05-13 v2 Biological Physics
Biomolecules
Abstract
The activation-polymerization-epimerization-depolymerization (APED) model of Plasson et al. has recently been proposed as a mechanism for the evolution of homochirality on prebiotic Earth. The dynamics of the APED model in two-dimensional spatially-extended systems is investigated for various realistic reaction parameters. It is found that the APED system allows for the formation of isolated homochiral proto-domains surrounded by a racemate. A diffusive slowdown of the APED network such as induced through tidal motion or evaporating pools and lagoons leads to the stabilization of homochiral bounded structures as expected in the first self-assembled protocells.
Cite
@article{arxiv.0810.5398,
title = {Toward homochiral protocells in noncatalytic peptide systems},
author = {Marcelo Gleiser and Sara Imari Walker},
journal= {arXiv preprint arXiv:0810.5398},
year = {2015}
}
Comments
10 pages, 5 figures