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Title: Spontaneous emergence of autocatalytic information-coding polymers

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4922545· OSTI ID:1213392
 [1];  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Illinois, Champaign, IL (United States)

Self-replicating systems based on information-coding polymers are of crucial importance in biology. They also recently emerged as a paradigm in material design on nano- and micro-scales. We present a general theoretical and numerical analysis of the problem of spontaneous emergence of autocatalysis for heteropolymers capable of template-assisted ligation driven by cyclic changes in the environment. Our central result is the existence of the first order transition between the regime dominated by free monomers and that with a self-sustaining population of sufficiently long chains. We provide a simple, mathematically tractable model supported by numerical simulations, which predicts the distribution of chain lengths and the onset of autocatalysis in terms of the overall monomer concentration and two fundamental rate constants. Another key result of our study is the emergence of the kinetically limited optimal overlap length between a template and each of its two substrates. The template-assisted ligation allows for heritable transmission of the information encoded in chain sequences thus opening up the possibility of long-term memory and evolvability in such systems.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704; PM-031
OSTI ID:
1213392
Alternate ID(s):
OSTI ID: 1228708
Report Number(s):
BNL-108290-2015-JA; JCPSA6; KC0403020; TRN: US1500647
Journal Information:
Journal of Chemical Physics, Vol. 143, Issue 4; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 22 works
Citation information provided by
Web of Science

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Cited By (14)

Cooperative ligation breaks sequence symmetry and stabilizes early molecular replication text January 2018
Selection of self-priming molecular replicators journal January 2019
Cooperative Ligation Breaks Sequence Symmetry and Stabilizes Early Molecular Replication journal March 2019
The Role of Templating in the Emergence of RNA from the Prebiotic Chemical Mixture journal October 2017
Limited Sequence Diversity Within a Population Supports Prebiotic RNA Reproduction journal February 2019
Survival of self-replicating molecules under transient compartmentalization with natural selection posted_content September 2019
Open flow non-enzymatic template catalysis and replication journal January 2018
Reaction kinetics in open reactors and serial transfers between closed reactors journal April 2018
Onset of natural selection in populations of autocatalytic heteropolymers journal October 2018
Reaction kinetics in open reactors and serial transfers between closed reactors text January 2018
Length and sequence relaxation of copolymers under recombination reactions text January 2017
Spontaneous emergence of catalytic cycles with colloidal spheres journal April 2017
Achieving Selective Targeting Using Engineered Nanomaterials book January 2019
Length and sequence relaxation of copolymers under recombination reactions journal September 2017

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