Laboratory for Systems Chemistry

Prof. Gonen Ashkenasy Research Group

The Influence of Modularity, Seeding, and Product Inhibition on Peptide Autocatalytic Network Dynamics

Wim Hordijk, Shira Shichor, Gonen Ashkenasy

Chemical networks often exhibit emergent, systems-level properties that cannot be simply derived from the linear sum of the individual components. The design and analysis of increasingly complex chemical networks thus constitute a major area of research in Systems Chemistry. In particular, much research is focused on the emergence of functional properties in prebiotic chemical networks relevant to the origin and early evolution of life. Here, we apply a formal framework known as RAF theory to study the dynamics of a complex network of mutually catalytic peptides. We investigate in detail the influence of network modularity, initial template seeding, and product inhibition on the network dynamics. We show that these results can be useful for designing new experiments, and further argue how they are relevant to origin of life studies.

Publication language English
Pages 2437-2444
Volume 19
Issue number 18
Publication status Published - 18.09.2018

Keywords

autocatalysis
autocatalytic sets
bioinformatics
modularity
origin of life
peptide networks
polymers
product inhibition

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Access to Document
10.1002/cphc.201800101
Other files and links
Link to publication in Scopus