Enzymic recognition of amino acids drove the evolution of primordial genetic codes

J Douglas, R Bouckaert, CW Carter Jr… - Nucleic Acids …, 2024 - academic.oup.com
How genetic information gained its exquisite control over chemical processes needed to
build living cells remains an enigma. Today, the aminoacyl-tRNA synthetases (AARS) …

[HTML][HTML] Base pairing promoted the self-organization of genetic coding, catalysis, and free-energy transduction

CW Carter Jr - Life, 2024 - mdpi.com
How Nature discovered genetic coding is a largely ignored question, yet the answer is key to
explaining the transition from biochemical building blocks to life. Other, related puzzles also …

Domain acquisition by class I aminoacyl-tRNA synthetase urzymes coordinated the catalytic functions of HVGH and KMSKS motifs

GQ Tang, JJH Elder, J Douglas… - Nucleic Acids …, 2023 - academic.oup.com
Leucyl-tRNA synthetase (LeuRS) is a Class I aminoacyl-tRNA synthetase (aaRS) that
synthesizes leucyl-tRNAleu for codon-directed protein synthesis. Two signature sequences …

Integration of transcriptomic and metabolomic reveals carbonate alkalinity stress responses in the hepatopancreas of Litopenaeus vannamei

Y Duan, Y Xing, X Zhu, H Li, Y Wang, Y Nan - Aquatic Toxicology, 2023 - Elsevier
Carbonate alkalinity (CA) is one of the environmental factors affecting the survival and
growth of aquatic animals. However, the toxic effects of CA stress on Pacific white shrimp …

Fragment screening and structural analyses highlight the ATP-assisted ligand binding for inhibitor discovery against type 1 methionyl-tRNA synthetase

J Yi, Z Cai, H Qiu, F Lu, Z Luo, B Chen… - Nucleic Acids …, 2022 - academic.oup.com
Methionyl-tRNA synthetase (MetRS) charges tRNAMet with l-methionine (L-Met) to decode
the ATG codon for protein translation, making it indispensable for all cellular lives. Many …

AARS Online: A collaborative database on the structure, function, and evolution of the aminoacyl‐tRNA synthetases

J Douglas, H Cui, JJ Perona, O Vargas‐Rodriguez… - IUBMB …, 2024 - Wiley Online Library
The aminoacyl‐tRNA synthetases (aaRS) are a large group of enzymes that implement the
genetic code in all known biological systems. They attach amino acids to their cognate …

A genomic database furnishes minimal functional glycyl-tRNA synthetases homologous to other, designed class II urzymes

SK Patra, J Douglas, PR Wills, L Betts… - Nucleic Acids …, 2024 - academic.oup.com
The hypothesis that conserved core catalytic sites could represent ancestral aminoacyl-
tRNA synthetases (AARS) drove the design of functional TrpRS, LeuRS, and HisRS …

[HTML][HTML] Genomic database furnishes a spontaneous example of a functional Class II glycyl-tRNA synthetase urzyme

SK Patra, J Douglas, PR Wills, R Bouckeart, L Betts… - bioRxiv, 2024 - ncbi.nlm.nih.gov
The chief barrier to studies of how genetic coding emerged is the lack of experimental
models for ancestral aminoacyl-tRNA synthetases (AARS). We hypothesized that conserved …

[HTML][HTML] Multidimensional phylogenetic metrics identify Class I Aminoacyl-tRNA synthetase evolutionary mosaicity and inter-modular coupling

CW Carter Jr, A Popinga, R Bouckaert… - International Journal of …, 2022 - mdpi.com
The role of aminoacyl-tRNA synthetases (aaRS) in the emergence and evolution of genetic
coding poses challenging questions concerning their provenance. We seek evidence about …

[HTML][HTML] A Leucyl-tRNA Synthetase Urzyme: Authenticity of tRNA Synthetase Catalytic Activities and Promiscuous Phosphorylation of Leucyl-5′ AMP

JJ Hobson, Z Li, H Hu, CW Carter Jr - International Journal of Molecular …, 2022 - mdpi.com
Aminoacyl-tRNA synthetase (aaRS)/tRNA cognate pairs translate the genetic code by
synthesizing specific aminoacyl-tRNAs that are assembled on messenger RNA by the …