Chemical reaction network structure and the stability of complex isothermal reactors—I. The deficiency zero and deficiency one theorems

1987 ◽  
Vol 42 (10) ◽  
pp. 2229-2268 ◽  
Author(s):  
Martin Feinberg
Author(s):  
Kamila B. Muchowska ◽  
Sreejith Jayasree VARMA ◽  
Joseph Moran

How core biological metabolism initiated and why it uses the intermediates, reactions and pathways that it does remains unclear. Life builds its molecules from CO<sub>2 </sub>and breaks them down to CO<sub>2 </sub>again through the intermediacy of just five metabolites that act as the hubs of biochemistry. Here, we describe a purely chemical reaction network promoted by Fe<sup>2+ </sup>in which aqueous pyruvate and glyoxylate, two products of abiotic CO<sub>2 </sub>reduction, build up nine of the eleven TCA cycle intermediates, including all five universal metabolic precursors. The intermediates simultaneously break down to CO<sub>2 </sub>in a life-like regime resembling biological anabolism and catabolism. Introduction of hydroxylamine and Fe<sup>0 </sup>produces four biological amino acids. The network significantly overlaps the TCA/rTCA and glyoxylate cycles and may represent a prebiotic precursor to these core metabolic pathways.


2007 ◽  
Vol 40 (5) ◽  
pp. 225-230 ◽  
Author(s):  
S.C. Burnham ◽  
M.J. Willis ◽  
A.R Wright

2001 ◽  
Vol 41 (supplement) ◽  
pp. S73
Author(s):  
T. Ushikubo ◽  
M. Sasai

Soft Matter ◽  
2017 ◽  
Vol 13 (41) ◽  
pp. 7595-7608 ◽  
Author(s):  
Dhananjay Ipparthi ◽  
Andrew Winslow ◽  
Metin Sitti ◽  
Marco Dorigo ◽  
Massimo Mastrangeli

The parallel assembly of 2D target structures from homogeneous macroscopic components is studied experimentally and through a chemical reaction network-based model, highlighting the incompatible substructures problem.


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