The Limited Roles of Autocatalysis and Enantiomeric Cross-Inhibition in Achieving Homochirality in Dilute Systems
Abstract
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.
- Publication:
-
Origins of Life and Evolution of the Biosphere
- Pub Date:
- June 2019
- DOI:
- 10.1007/s11084-019-09579-4
- arXiv:
- arXiv:1903.07855
- Bibcode:
- 2019OLEB...49...49B
- Keywords:
-
- DNA polymerization;
- Enantiomeric cross-inhibition;
- Origin of homochirality. Revision: 1.46;
- Quantitative Biology - Biomolecules
- E-Print:
- 14 pages, 5 figures, 2 tables, Orig. Life Evol. Biosph., in press