Results 31 to 40 of about 8,017 (202)

The Battle for Survival: The Role of RNA Non-Canonical Tails in the Virus–Host Interaction

open access: yesMetabolites, 2023
Terminal nucleotidyltransferases (TENTs) could generate a ‘mixed tail’ or ‘U-rich tail’ consisting of different nucleotides at the 3′ end of RNA by non-templated nucleotide addition to protect or degrade cellular messenger RNA.
Xianghui Wen, Ahsan Irshad, Hua Jin
doaj   +1 more source

The arms race between bacteria CBASS and bacteriophages

open access: yesFrontiers in Immunology, 2023
The Bacterial Cyclic oligonucleotide-Based Anti-phage Signaling System (CBASS) is an innate immune system that induces cell suicide to defend against phage infections.
Lan Wang   +5 more
doaj   +1 more source

CCA-Addition Gone Wild: Unusual Occurrence and Phylogeny of Four Different tRNA Nucleotidyltransferases in Acanthamoeba castellanii

open access: yesMolecular biology and evolution, 2020
tRNAs are important players in the protein synthesis machinery, where they act as adapter molecules for translating the mRNA codons into the corresponding amino acid sequence.
L. Erber, H. Betat, M. Mörl
semanticscholar   +1 more source

Purification and Characterization of a Mutant tRNA Nucleotidyltransferase [PDF]

open access: yesEuropean Journal of Biochemistry, 1980
tRNA nucleotidyltransferase has been extensively purified from a mutant strain of Escherichia coli which displays greatly decreased AMP incorporation, but normal CMP incorporation. The defect in AMP incorporation is retained throughout the purification of the mutant protein. The mutant protein behaves identically to the wild‐type protein with regard to
Murray P. Deutscher, Robert G. McGANN
openaire   +3 more sources

Terminal Uridylyltransferases TUT4/7 Regulate microRNA and mRNA Homeostasis

open access: yesCells, 2022
The terminal nucleotidyltransferases TUT4 and TUT7 (TUT4/7) regulate miRNA and mRNA stability by 3′ end uridylation. In humans, TUT4/7 polyuridylates both mRNA and pre-miRNA, leading to degradation by the U-specific exonuclease DIS3L2. We investigate the
Pengcheng Zhang   +2 more
doaj   +1 more source

TYMV RNA As a substrate of the tRNA nucleotidyltransferase [PDF]

open access: yesFEBS Letters, 1970
It has been recently shown that in the presence of partly purified enzyme preparations from Escherichia coli and ATP. lhe RNA (M.W. = 2 × 106) of Turnip Yellow Mosaic Virus (TYMV) reacts with valine forming an ester bond analogous to that existing in aminoacyltRNA: lhe valine estcrifies the., -terminal adenosine ofTYMV RNA II. 21.
Simon Litvak   +2 more
openaire   +2 more sources

AGO-bound mature miRNAs are oligouridylated by TUTs and subsequently degraded by DIS3L2

open access: yesNature Communications, 2020
3′ end of microRNAs binds to the PAZ domain of Argonaute (AGO) proteins. Here the authors show that terminal nucleotidyltransferases TUT4/7 and exonuclease DIS3L2 induce tailing and decay of 3’ end exposed-microRNAs in AGO PAZ mutant expressing- or ...
Acong Yang   +6 more
doaj   +1 more source

Identification and characterization of a novel aminoglycoside O-nucleotidyltransferase ANT(6)-If from Paenibacillus thiaminolyticus PATH554

open access: yesFrontiers in Microbiology, 2023
BackgroundPaenibacillus thiaminolyticus, a species of genus Paenibacillus of the family Paenibacillaceae, exists widely in environments and habitats in various plants and worms, and occasionally causes human infections.
Junwan Lu   +10 more
doaj   +1 more source

Origin of the Genetic Code Is Found at the Transition between a Thioester World of Peptides and the Phosphoester World of Polynucleotides

open access: yesLife, 2019
The early metabolism arising in a Thioester world gave rise to amino acids and their simple peptides. The catalytic activity of these early simple peptides became instrumental in the transition from Thioester World to a Phosphate World.
Hyman Hartman, Temple F. Smith
doaj   +1 more source

The inhibition of deoxyribonucleic acid nucleotidyltransferase by stilboestrol derivatives [PDF]

open access: yesBiochemical Journal, 1968
The inhibition by diethylstilboestrol of DNA nucleotidyltransferase isolated from calf thymus was studied. The inhibition exercised by diethylstilboestrol appears to obey competitive kinetics with respect to DNA primer. The activities of both replicative and terminal enzymes were affected to the same extent. There was no evidence of binding between DNA
K Griffiths, A R Fahmy
openaire   +3 more sources

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