Results 161 to 170 of about 26,913 (206)
iLABMED, EarlyView.A reporter phage T4::Nluc was constructed using the CRISPR/Cas9 system combined with homologous recombination and was applied for the detection of clinical Escherichia coli in urinary tract infections (UTIs). T4::Nluc exhibited superior sensitivity and specificity, and had a short detection time, making it a powerful tool for diagnosing UTIs.
Zhiyun Hao +6 more
wiley +1 more source
iLABMED, EarlyView.The expression pathway of COX and the downstream mechanism of PGE. M: muscarinic receptor; PL: phospholipid; PLA2: phospholipase A2; AA: arachidonic acid; EP1: prostaglandin E1 receptor; EP2: prostaglandin E2 receptor; EP3: prostaglandin E3 receptor; EP4: prostaglandin E4 receptor.
Cong Wu +5 more
wiley +1 more source
iMeta, EarlyView.In this study, we found evidence of phage‐mediated horizontal transfer of virulence genes in Salmonella enterica in global habitats from a molecular evolutionary perspective. Notably, csrA, a global regulator in Salmonella enterica, curbed horizontal gene transfer by inhibiting the cyclization and release of prophage.
Tianjing She +9 more
wiley +1 more source
Temporal response patterns of human gut microbiota to dietary fiber
iMeta, EarlyView.In this study, 19 overweight participants, with or without type 2 diabetes mellitus, underwent 14 days of normal‐diet observation followed by 14 days of dietary fiber intervention. Fecal samples and continuous glucose monitoring data were collected daily throughout the 28‐day period.
Xiaotong Lin +5 more
wiley +1 more source
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Mutation Research/DNA Repair, 1990
Recent studies on eukaryotic DNA ligases are briefly reviewed. The two distinguishable enzymes from mammalian cells, DNA ligase I and DNA ligase II, have been purified to homogeneity and characterized biochemically. Two distinct DNA ligases have also been identified in Drosophila melanogaster embryos.
Alan E. Tomkinson +2 more
openaire +3 more sources
Recent studies on eukaryotic DNA ligases are briefly reviewed. The two distinguishable enzymes from mammalian cells, DNA ligase I and DNA ligase II, have been purified to homogeneity and characterized biochemically. Two distinct DNA ligases have also been identified in Drosophila melanogaster embryos.
Alan E. Tomkinson +2 more
openaire +3 more sources
BioEssays, 1997
AbstractDNA joining enzymes play an essential role in the maintenance of genomic integrity and stability. Three mammalian genes encoding DNA ligases, LIG1, LIG3 and LIG4, have been identified. Since DNA ligase II appears to be derived from DNA ligase III by a proteolytic mechanism, the three LIG genes can account for the four biochemically distinct DNA
David S. Levin, Alan E. Tomkinson
openaire +3 more sources
AbstractDNA joining enzymes play an essential role in the maintenance of genomic integrity and stability. Three mammalian genes encoding DNA ligases, LIG1, LIG3 and LIG4, have been identified. Since DNA ligase II appears to be derived from DNA ligase III by a proteolytic mechanism, the three LIG genes can account for the four biochemically distinct DNA
David S. Levin, Alan E. Tomkinson
openaire +3 more sources
Current Protocols in Molecular Biology, 2011
AbstractThe DNA ligase enzyme family catalyzes the formation of a phosphodiester bond between juxtaposed 5′‐phosphate and 3′‐hydroxyl termini in duplex DNA. This activity can seal nicks in duplex DNA or join double‐stranded DNA fragments having either blunt or cohesive ends.
Gregory J S, Lohman +2 more
openaire +2 more sources
AbstractThe DNA ligase enzyme family catalyzes the formation of a phosphodiester bond between juxtaposed 5′‐phosphate and 3′‐hydroxyl termini in duplex DNA. This activity can seal nicks in duplex DNA or join double‐stranded DNA fragments having either blunt or cohesive ends.
Gregory J S, Lohman +2 more
openaire +2 more sources
Current Protocols in Molecular Biology, 1989
AbstractDNA ligases catalyze the formation of phosphodiester bonds between juxtaposed 5' phosphate and a 3'‐hydroxyl terminus in duplex DNA. This activity can repair single‐stranded nicks in duplex DNA and join duplex DNA restriction fragments having either blunt ends or homologous cohesive ends. Two ligases are used for nucleic acid research and their
Nicole M. Nichols +2 more
openaire +3 more sources
AbstractDNA ligases catalyze the formation of phosphodiester bonds between juxtaposed 5' phosphate and a 3'‐hydroxyl terminus in duplex DNA. This activity can repair single‐stranded nicks in duplex DNA and join duplex DNA restriction fragments having either blunt ends or homologous cohesive ends. Two ligases are used for nucleic acid research and their
Nicole M. Nichols +2 more
openaire +3 more sources
A DNA metalloenzyme with DNA ligase activity
Nature, 1995Single-stranded DNA can fold into well-defined sequence-dependent tertiary structures that specifically bind a variety of target molecules, raising the possibility that some folded single-stranded DNAs might exhibit catalytic activities similar to those of ribozymes and protein enzymes.
Bernard Cuenoud, Jack W. Szostak
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DNA ligases in the repair and replication of DNA
Mutation Research/DNA Repair, 2000DNA ligases are critical enzymes of DNA metabolism. The reaction they catalyse (the joining of nicked DNA) is required in DNA replication and in DNA repair pathways that require the re-synthesis of DNA. Most organisms express DNA ligases powered by ATP, but eubacteria appear to be unique in having ligases driven by NAD(+).
Dale B. Wigley +2 more
openaire +3 more sources