Results 11 to 20 of about 77,074 (235)

Carboxymethylcytosine is a natural base modification and a handle for bacteriophage DNA hypermodification [PDF]

open access: yesNature Communications
Bacteriophages possess a wide array of DNA modifications, with many acting as molecular camouflage to evade host immune defenses. Sequence databases contain numerous bacteriophage enzymes of unknown function, with some potentially involved in yet to be ...
Qiaoyu Yang   +16 more
doaj   +2 more sources

Influence of the ATP-dependent DNA ligase, Lig E, on Neisseria gonorrhoeae microcolony and biofilm formation

open access: yesBiofilm
Neisseria gonorrhoeae, the causative agent of the sexually transmitted infection, gonorrhoea, is known to form biofilms rich in extracellular DNA on human cervical cells. Biofilm formation is conducive to increased antimicrobial resistance and evasion of
Jolyn Pan   +4 more
doaj   +3 more sources

Characterization of a Baculovirus-Encoded ATP-Dependent DNA Ligase [PDF]

open access: yesJournal of Virology, 1998
ABSTRACTSequence analysis of theLymantria disparmulticapsid nucleopolyhedrovirus (LdMNPV) genome identified an open reading frame (ORF) encoding a 548-amino-acid (62-kDa) protein that showed 35% amino acid sequence identity with vaccinia virus ATP-dependent DNA ligase. Ligase homologs have not been reported from other baculoviruses.
M N, Pearson, G F, Rohrmann
openaire   +2 more sources

The minimal Bacillus subtilis nonhomologous end joining repair machinery. [PDF]

open access: yesPLoS ONE, 2013
It is widely accepted that repair of double-strand breaks in bacteria that either sporulate or that undergo extended periods of stationary phase relies not only on homologous recombination but also on a minimal nonhomologous end joining (NHEJ) system ...
Miguel de Vega
doaj   +1 more source

Identification of Novel Inhibitors of Escherichia coli DNA Ligase (LigA)

open access: yesMolecules, 2021
Present in all organisms, DNA ligases catalyse the formation of a phosphodiester bond between a 3′ hydroxyl and a 5′ phosphate, a reaction that is essential for maintaining genome integrity during replication and repair.
Arqam Alomari   +10 more
doaj   +1 more source

The Transcriptional Response to DNA-Double-Strand Breaks in Physcomitrella patens. [PDF]

open access: yesPLoS ONE, 2016
The model bryophyte Physcomitrella patens is unique among plants in supporting the generation of mutant alleles by facile homologous recombination-mediated gene targeting (GT).
Yasuko Kamisugi   +2 more
doaj   +1 more source

Use of ATP, dATP and their α-thio derivatives to study DNA ligase adenylation [PDF]

open access: yesBiochemical Journal, 1990
Bacteriophage-T4 and human type I DNA ligases were found capable of self-adenylating upon exposure to both ribo- and deoxyribo-[alpha-35S]thio-ATP. However, the joining reaction does not take place in the presence of the deoxyribotriphosphates. Enzyme adenylation is reversed in all cases by an excess of PPi, but the rate of reversion is lower with thio
A Montecucco   +4 more
openaire   +3 more sources

Template-directed ligation of tethered mononucleotides by t4 DNA ligase for kinase ribozyme selection. [PDF]

open access: yesPLoS ONE, 2010
BACKGROUND: In vitro selection of kinase ribozymes for small molecule metabolites, such as free nucleosides, will require partition systems that discriminate active from inactive RNA species.
David G Nickens   +3 more
doaj   +1 more source

Characterization of an ATP-dependent DNA ligase encoded by Chlorella virus PBCV-1 [PDF]

open access: yesJournal of Virology, 1997
We report that Chlorella virus PBCV-1 encodes a 298-amino-acid ATP-dependent DNA ligase. The PBCV-1 enzyme is the smallest member of the covalent nucleotidyl transferase superfamily, which includes the ATP-dependent polynucleotide ligases and the GTP-dependent RNA capping enzymes.
Ho, C. Kiong   +2 more
openaire   +2 more sources

PprA contributes to Deinococcus radiodurans resistance to nalidixic acid, genome maintenance after DNA damage and interacts with deinococcal topoisomerases. [PDF]

open access: yesPLoS ONE, 2014
PprA is known to contribute to Deinococcus radiodurans' remarkable capacity to survive a variety of genotoxic assaults. The molecular bases for PprA's role(s) in the maintenance of the damaged D.
Swathi Kota   +4 more
doaj   +1 more source

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