ArticleOrigins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life2011
Metabolic basis for the self-referential genetic code.
Article in Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 33 citations in OpenAlex.
- The Role of Mutations, Addition of Amino Acids, and Exchange of Genetic Information in the Coevolution of Primitive Coding Systems.International journal of molecular sciences · 2025Article
- Comparisons between small ribosomal RNA and theoretical minimal RNA ring secondary structures confirm phylogenetic and structural accretion histories.Scientific reports · 2020Article
- First arrived, first served: competition between codons for codon-amino acid stereochemical interactions determined early genetic code assignments.Die Naturwissenschaften · 2020Article
- Basic principles of the genetic code extension.Royal Society open science · 2020Article
- Theoretical minimal RNA rings designed according to coding constraints mimic deamination gradients.Die Naturwissenschaften · 2019Article
- More Pieces of Ancient than Recent Theoretical Minimal Proto-tRNA-Like RNA Rings in Genes Coding for tRNA Synthetases.Journal of molecular evolution · 2019Article
- The influence of different types of translational inaccuracies on the genetic code structure.BMC bioinformatics · 2019Article
- Self-Referential Encoding on Modules of Anticodon Pairs-Roots of the Biological Flow System.Life (Basel, Switzerland) · 2017Review
- A unified model of the standard genetic code.Royal Society open science · 2017Article
- Genetic Code Optimization for Cotranslational Protein Folding: Codon Directional Asymmetry Correlates with Antiparallel Betasheets, tRNA Synthetase Classes.Computational and structural biotechnology journal · 2017Article
- tRNA Core Hypothesis for the Transition from the RNA World to the Ribonucleoprotein World.Life (Basel, Switzerland) · 2016Article
- Uniquely localized intra-molecular amino acid concentrations at the glycolytic enzyme catalytic/active centers of Archaea, Bacteria and Eukaryota are associated with their proposed temporal appearances on earth.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2013Article
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1 author at 1 institution in 1 country.
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Abstract
An investigation of the biosynthesis pathways producing glycine and serine was necessary to clarify an apparent inconsistency between the self-referential model (SRM) for the formation of the genetic code and the model of coevolution of encodings and of amino acid biosynthesis routes. According to the SRM proposal, glycine was the first amino acid encoded, followed by serine. The coevolution model does not state precisely which the first encodings were, only presenting a list of about ten early assignments including the derivation of glycine from serine-this being derived from the glycolysis intermediate glycerate, which reverses the order proposed by the self-referential model. Our search identified the glycine-serine pathway of syntheses based on one-carbon sources, involving activities of the glycine decarboxylase complex and its associated serine hydroxymethyltransferase, which is consistent with the order proposed by the self-referential model and supports its rationale for the origin of the genetic code: protein synthesis was developed inside an early metabolic system, serving the function of a sink of amino acids; the first peptides were glycine-rich and fit for the function of building the early ribonucleoproteins; glycine consumption in proteins drove the fixation of the glycine-serine pathway.
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