Results 1 to 10 of about 1,773 (158)

Mechanism of Mg2+-Accompanied Product Release in Sugar Nucleotidyltransferases [PDF]

open access: yesStructure, 2018
The nucleotidyl transfer reaction, catalyzed by sugar nucleotidyltransferases (SNTs), is assisted by two active site Mg2+ ions. While studying this reaction using X-ray crystallography, we captured snapshots of the pyrophosphate (product) as it exits along a pocket.
Balaji Prakash   +2 more
exaly   +8 more sources

Molecular mechanisms of template-independent RNA polymerization by tRNA nucleotidyltransferases [PDF]

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 ...
Seisuke Yamashita, Kozo Tomita
exaly   +5 more sources

ant(6)-I Genes Encoding Aminoglycoside O-Nucleotidyltransferases Are Widely Spread Among Streptomycin Resistant Strains of Campylobacter jejuni and Campylobacter coli [PDF]

open access: yesFrontiers in Microbiology, 2018
Thermotolerant Campylobacter species C. jejuni and C. coli are actually recognized as the major bacterial agent responsible for food-transmitted gastroenteritis. The most effective antimicrobials against Campylobacter are macrolides and some, but not all
Alberto Quesada   +2 more
exaly   +5 more sources

Crystal structure and functional implications of cyclic di-pyrimidine-synthesizing cGAS/DncV-like nucleotidyltransferases

open access: yesNature Communications, 2023
Purine-containing nucleotide second messengers regulate diverse cellular activities. Cyclic di-pyrimidines mediate anti-phage functions in bacteria; however, the synthesis mechanism remains elusive.
Chia-Shin Yang   +5 more
doaj   +3 more sources

Feedback Inhibition of Bacterial Nucleotidyltransferases by Rare Nucleotide l-Sugars Restricts Substrate Promiscuity

open access: yesJournal of the American Chemical Society, 2023
Bacterial glycomes are rich in prokaryote-specific or “rare” sugars that are absent in mammals. Like common sugars found across organisms, rare sugars are typically activated as nucleoside diphosphate sugars (NDP-sugars) by nucleotidyltransferases.
Tania Lupoli, Meng Zheng, Hanee Kim
exaly   +3 more sources

Identification and Characterization of Mammalian Mitochondrial tRNA nucleotidyltransferases [PDF]

open access: yesJournal of Biological Chemistry, 2001
The CCA-adding enzyme (ATP:tRNA adenylyltransferase or CTP:tRNA cytidylyltransferase (EC 2.7.7.25)) generates the conserved CCA sequence responsible for the attachment of amino acid at the 3′ terminus of tRNA molecules.
Yukihide Tomari   +2 more
exaly   +4 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   +2 more sources

The terminal nucleotidyltransferases of calf thymus nuclei.

open access: yesJournal of Biological Chemistry, 1966
An enzyme from calf thymus nuclei which incorporates ribonucleotides or deoxyribonucleotides into terminal positions of deoxyribonucleic acid has been purified and its mechanism of action elucidated.
M. Gottesman, E. Canellakis
semanticscholar   +3 more sources

Inactivation of lincosaminide antibiotics in Staphylococcus. Identification of lincosaminide O-nucleotidyltransferases and comparison of the corresponding resistance genes.

open access: yesJournal of Biological Chemistry, 1988
Resistance to lincomycin by inactivation has been detected in numerous clinical isolates of Staphylococcus; in crude extracts of Staphylococcus haemolyticus BM4610 and Staphylococcus aureus BM4611, inactivation of lincomycin and clindamycin requires the ...
P Courvalin
exaly   +2 more sources

Structures and mechanism of E2‐CBASS anti‐phage system

open access: yesmLife
Bacteria deploy diverse innate immune systems to combat bacteriophage infections. The cyclic‐oligonucleotide‐based anti‐phage signaling system (CBASS) is a type of innate prokaryotic immune system.
Jun Xiao   +7 more
doaj   +2 more sources

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