Results 31 to 40 of about 5,408 (205)

AadA36, a novel chromosomal aminoglycoside nucleotidyltransferase from a clinical isolate of Providencia stuartii

open access: yesFrontiers in Microbiology, 2022
In this study, we characterized a novel chromosome-encoded aminoglycoside nucleotidyltransferase (ANT), AadA36, from the Providencia stuartii strain P14 isolated from the sputum specimen of a burn patient at a hospital in Wenzhou, China.
Mengdi Gao   +17 more
doaj   +1 more source

Ubiquitylation of terminal deoxynucleotidyltransferase inhibits its activity. [PDF]

open access: yesPLoS ONE, 2012
Terminal deoxynucleotidyltransferase (TdT), which template-independently synthesizes DNA during V(D)J recombination in lymphoid cells, is ubiquitylated by a BPOZ-2/Cul3 complex, as the ubiquitin ligase, and then degraded by the 26 S proteasome.
So Maezawa   +12 more
doaj   +1 more source

Reversible and rapid transfer-RNA deactivation as a mechanism of translational repression in stress. [PDF]

open access: yesPLoS Genetics, 2013
Stress-induced changes of gene expression are crucial for survival of eukaryotic cells. Regulation at the level of translation provides the necessary plasticity for immediate changes of cellular activities and protein levels.
Andreas Czech   +4 more
doaj   +1 more source

On the ancestral UDP-glucose pyrophosphorylase activity of GalF from Escherichia coli

open access: yesFrontiers in Microbiology, 2015
In bacteria, UDP-glucose is a central intermediate in carbohydrate metabolism. The enzyme responsible for its synthesis is encoded by the galU gene and its deletion generates cells unable to ferment galactose.
Ana C Ebrecht   +6 more
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

Molecular mechanisms of template-independent RNA polymerization by tRNA nucleotidyltransferases

open access: yesFrontiers in Genetics, 2014
The universal 3'-terminal CCA sequence of tRNA is built and/or synthesized by the CCA-adding enzyme, CTP:(ATP) tRNA nucleotidyltransferase. This RNA polymerase has no nucleic acid template, but faithfully synthesizes the defined CCA sequence on the 3 ...
Kozo eTomita, Seisueke eYamashita
doaj   +1 more source

Structure of Human cGAS Reveals a Conserved Family of Second-Messenger Enzymes in Innate Immunity

open access: yesCell Reports, 2013
Innate immune recognition of foreign nucleic acids induces protective interferon responses. Detection of cytosolic DNA triggers downstream immune signaling through activation of cyclic GMP-AMP synthase (cGAS).
Philip J. Kranzusch   +3 more
doaj   +1 more source

The Synthesis and Properties of the Sepharose‐Bound tRNA Nucleotidyltransferase [PDF]

open access: yesEuropean Journal of Biochemistry, 1971
The synthesis of an insoluble tRNA nucleotidyltransferase by covalent coupling of the enzyme to cyanogen bromide‐activated sepharose is described. The sepharose‐bound enzyme is active in the repair of the pCpCpA sequence of tRNA. Most of its properties are identical to the soluble enzyme although its stability, regarding thermal inactivation and ...
Simon Litvak   +3 more
openaire   +3 more sources

Functions and mechanisms of RNA tailing by metazoan terminal nucleotidyltransferases [PDF]

open access: yesWIREs RNA, 2020
AbstractTermini often determine the fate of RNA molecules. In recent years, 3′ ends of almost all classes of RNA species have been shown to acquire nontemplated nucleotides that are added by terminal nucleotidyltransferases (TENTs). The best‐described role of 3′ tailing is the bulk polyadenylation of messenger RNAs in the cell nucleus that is catalyzed
Vladyslava Liudkovska   +2 more
openaire   +2 more sources

A new subclass of intrinsic aminoglycoside nucleotidyltransferases, ANT(3")-II, is horizontally transferred among Acinetobacter spp. by homologous recombination.

open access: yesPLoS Genetics, 2017
The emergence and spread of antibiotic resistance among Acinetobacter spp. have been investigated extensively. Most studies focused on the multiple antibiotic resistance genes located on plasmids or genomic resistance islands.
Gang Zhang   +7 more
doaj   +1 more source

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