Required Levels of Catalysis for Emergence of Autocatalytic Sets in Models of Chemical Reaction Systems

International Journal of Molecular Sciences

Wim Hordijk²  Stuart A. Kauffman¹ 

[1] Tampere University of Technology, Finland; E-Mail:;Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland

关键词: autocatalytic sets;    chemical reaction networks;    template-based catalysis;    origin of life;   

DOI  :  10.3390/ijms12053085

来源: mdpi

【 摘 要 】

The formation of a self-sustaining autocatalytic chemical network is a necessary but not sufficient condition for the origin of life. The question of whether such a network could form “by chance” within a sufficiently complex suite of molecules and reactions is one that we have investigated for a simple chemical reaction model based on polymer ligation and cleavage. In this paper, we extend this work in several further directions. In particular, we investigate in more detail the levels of catalysis required for a self-sustaining autocatalytic network to form. We study the size of chemical networks within which we might expect to find such an autocatalytic subset, and we extend the theoretical and computational analyses to models in which catalysis requires template matching.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.