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The Limited Roles of Autocatalysis and Enantiomeric Cross-Inhibition in Achieving Homochirality in Dilute Systems
Stockholm University, Nordic Institute for Theoretical Physics (Nordita). Stockholm University, Faculty of Science, Department of Astronomy. JILA and Laboratory for Atmospheric and Space Physics, USA; Carnegie Mellon University, USA.ORCID iD: 0000-0002-7304-021X
Number of Authors: 12019 (English)In: Origins of life and evolution of the biosphere, ISSN 0169-6149, E-ISSN 1573-0875, Vol. 49, no 1-2, p. 49-60Article in journal (Refereed) Published
Abstract [en]

To understand the effects of fluctuations on achieving homochirality, we employ a Monte-Carlo method where autocatalysis and enantiomeric cross-inhibition, as well as racemization and deracemization reactions are included. The results of earlier work either without autocatalysis or without cross-inhibition are reproduced. Bifurcation diagrams and the dependencies of the number of reaction steps on parameters are studied. In systems with 30,000 molecules, for example, up to a billion reaction steps may be needed to achieve homochirality without autocatalysis.

Place, publisher, year, edition, pages
2019. Vol. 49, no 1-2, p. 49-60
Keywords [en]
DNA polymerization, Enantiomeric cross-inhibition, Origin of homochirality, Revision, 1.46
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-173056DOI: 10.1007/s11084-019-09579-4ISI: 000481414300003PubMedID: 31286343OAI: oai:DiVA.org:su-173056DiVA, id: diva2:1353109
Available from: 2019-09-20 Created: 2019-09-20 Last updated: 2019-09-20Bibliographically approved

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Nordic Institute for Theoretical Physics (Nordita)Department of Astronomy
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