منابع مشابه
Autocatalytic sets and boundaries
Autopoietic systems, chemotons, and autogens are models that aim to explain (the emergence of) life as a functionally closed and self-sustaining system. An essential element in these models is the notion of a boundary containing, maintaining, and being generated by an internal reaction network. The more general concept of collectively autocatalytic sets, formalized as RAF theory, does not expli...
متن کاملAutocatalytic sets and biological specificity.
A universal feature of the biochemistry of any living system is that all the molecules and catalysts that are required for reactions of the system can be built up from an available food source by repeated application of reactions from within that system. RAF (reflexively autocatalytic and food-generated) theory provides a formal way to study such processes. Beginning with Kauffman's notion of "...
متن کاملContinuous growth of autocatalytic sets.
We investigated a topology of the reaction network for polymerization of amino acids as the emergence and the continuous growth of autocatalytic sets. Reaction networks including transpeptidation reaction can yield newer and longer peptides with time having higher concentrations. Conditions necessary for the occurrence of transpeptidation can be met in actual amino acid/peptide systems.
متن کاملDynamical Stability of Autocatalytic Sets
Theoretical investigations of autocatalytic sets rendered the occurrence of self-sustaining sets of molecules to be a generic property of random reaction networks. This stands in some contrast to the experimental difficulty to actually find such systems. In this work, we argue that the usual approach, which is based on the study of static properties of reaction graphs has to be complemented wit...
متن کاملAutocatalytic Sets and the Origin of Life
The origin of life is one of the most fundamental, but also one of the most difficult problems in science. Despite differences between various proposed scenarios, one common element seems to be the emergence of an autocatalytic set or cycle at some stage. However, there is still disagreement as to how likely it is that such self-sustaining sets could arise “spontaneously”. This disagreement is ...
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ژورنال
عنوان ژورنال: Journal of Systems Chemistry
سال: 2015
ISSN: 1759-2208
DOI: 10.1186/s13322-014-0006-2