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Autcatalytic networks
Eörs Szathmáry Collegium Budapest AND Eötvös University
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Units of evolution multiplication heredity
variation hereditary traits affecting survival and/or reproduction
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Towards Systems Chemistry
Analysis of synthesis of coupled autocatalytic chemical systems Origin of life and chemical technology
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The formose ‘reaction’
formaldehyde autocatalysis glycolaldehyde Butlerow, 1861
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The reductive citric acid cycle
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PEP carboxylase
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The catalytic mechanism
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Chemical evolution was a race between tar formation and life formation
Chemical networks Tar Life What fraction of planets would end up with just tar?
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Benner’s hypothetical ribo-organism (1999)
Membrane? Cofactors?
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Another case: von Kiedrowski’s replicators
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Von Kiedrowski’s replicator
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Peptide replicator networks
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The Soi reaction
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Toward ribozyme self-replication
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Towards a general polymerase
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Anabolic autocatalysis I
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Anabolic autocatalysis II
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Towards replicable nanostructures
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Gánti’s chemoton model (1974)
metabolism template copying membrane growth ALL THREE SUBSYSTEMS ARE AUTOCATALYTIC
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Pathways of supersystem evolution
metabolism M B boundary M T M B T template B T INFRABIOLOGICAL SYSTEMS
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Szostak’s vesicles
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