ArticleThe Journal of biological chemistry2013
Aminoacylating urzymes challenge the RNA world hypothesis.
Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.
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Who cites it
51 citing papers in PubMed.
- The mechanism of lineage-specific tRNA recognition by bacterial tryptophanyl-tRNA synthetase and its implications for inhibitor discovery.Nucleic acids research · 2025Article
- Aminoacyl-tRNA synthetase urzymes optimized by deep learning behave as a quasispecies.Structural dynamics (Melville, N.Y.) · 2025Article
- A genomic database furnishes minimal functional glycyl-tRNA synthetases homologous to other, designed class II urzymes.Nucleic acids research · 2024Article
- Triphasic Development of the Genetic Code.Chemical reviews · 2024Review
- Primordial aminoacyl-tRNA synthetases preferred minihelices to full-length tRNA.Nucleic acids research · 2024Article
- Base Pairing Promoted the Self-Organization of Genetic Coding, Catalysis, and Free-Energy Transduction.Life (Basel, Switzerland) · 2024Review
- Enzymic recognition of amino acids drove the evolution of primordial genetic codes.Nucleic acids research · 2024Article
- Genomic database furnishes a spontaneous example of a functional Class II glycyl-tRNA synthetase urzyme.bioRxiv : the preprint server for biology · 2024Article
- Symmetrical distributions of aminoacyl-tRNA synthetases during the evolution of the genetic code.Theory in biosciences = Theorie in den Biowissenschaften · 2023Article
- Domain acquisition by class I aminoacyl-tRNA synthetase urzymes coordinated the catalytic functions of HVGH and KMSKS motifs.Nucleic acids research · 2023Article
- Triplet-Encoded Prebiotic RNA Aminoacylation.Journal of the American Chemical Society · 2023Article
- Biophysical Interactions Underpin the Emergence of Information in the Genetic Code.Life (Basel, Switzerland) · 2023Article
- A Leucyl-tRNA Synthetase Urzyme: Authenticity of tRNA Synthetase Catalytic Activities and Promiscuous Phosphorylation of Leucyl-5'AMP.International journal of molecular sciences · 2022Article
- Multidimensional Phylogenetic Metrics Identify Class I Aminoacyl-tRNA Synthetase Evolutionary Mosaicity and Inter-Modular Coupling.International journal of molecular sciences · 2022Article
- Reciprocally-Coupled Gating: Strange Loops in Bioenergetics, Genetics, and Catalysis.Biomolecules · 2021Review
- Impedance Matching and the Choice Between Alternative Pathways for the Origin of Genetic Coding.International journal of molecular sciences · 2020Article
- The Ancient Operational Code is Embedded in the Amino Acid Substitution Matrix and aaRS Phylogenies.Journal of molecular evolution · 2020Article
- Life in The Context of Order and Complexity.Life (Basel, Switzerland) · 2020Article
- Experimental solutions to problems defining the origin of codon-directed protein synthesis.Bio Systems · 2019Review
- Review
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3 authors.
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Abstract
We describe experimental evidence that ancestral peptide catalysts substantially accelerated development of genetic coding. Structurally invariant 120-130-residue Urzymes (Ur = primitive plus enzyme) derived from Class I and Class II aminoacyl-tRNA synthetases (aaRSs) acylate tRNA far faster than the uncatalyzed rate of nonribosomal peptide bond formation from activated amino acids. These new data allow us to demonstrate statistically indistinguishable catalytic profiles for Class I and II aaRSs in both amino acid activation and tRNA acylation, over a time period extending to well before the assembly of full-length enzymes and even further before the Last Universal Common Ancestor. Both Urzymes also exhibit ∼60% of the contemporary catalytic proficiencies. Moreover, they are linked by ancestral sense/antisense genetic coding, and their evident modularities suggest descent from even simpler ancestral pairs also coded by opposite strands of the same gene. Thus, aaRS Urzymes substantially pre-date modern aaRS but are, nevertheless, highly evolved. Their unexpectedly advanced catalytic repertoires, sense/antisense coding, and ancestral modularities imply considerable prior protein-tRNA co-evolution. Further, unlike ribozymes that motivated the RNA World hypothesis, Class I and II Urzyme·tRNA pairs represent consensus ancestral forms sufficient for codon-directed synthesis of nonrandom peptides. By tracing aaRS catalytic activities back to simpler ancestral peptides, we demonstrate key steps for a simpler and hence more probable peptide·RNA development of rapid coding systems matching amino acids with anticodon trinucleotides.
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