Results 21 to 30 of about 1,333 (119)
Frontiers in Cellular and Infection Microbiology, 2018 The protozoan parasite Entamoeba histolytica is exposed to reactive oxygen and nitric oxide species that have the potential to damage its genome. E. histolytica harbors enzymes involved in DNA repair pathways like Base and Nucleotide Excision Repair. The
Elisa Azuara-Liceaga +14 more
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European Journal of Biochemistry, 1992 A novel form of rat liver DNA ligase (molecular mass 100 kDa) can be differentiated from DNA ligase I by several biochemical parameters. It is a more heat‐labile enzyme and unable to join bluntended DNA, even in the presence of poly(ethylene glycol) concentrations which stimulate such joining by DNA ligase I and T4 DNA ligase.
R H Elder +3 more
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PLoS ONE, 2013 Nonhomologous end-joining (NHEJ) and homologous recombination (HR) are two major pathways for repairing DNA double-strand breaks (DSBs); however, their respective roles in human somatic cells remain to be elucidated.
Aya Kurosawa +6 more
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DNA Ligase I Is Not Essential for Mammalian Cell Viability
Cell Reports, 2014 Summary: Of the three DNA ligases present in all vertebrates, DNA ligase I (Lig1) has been considered essential for ligating Okazaki fragments during DNA replication and thereby essential for cell viability.
Li Han +3 more
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The Inhibitory Effect of Non-Substrate and Substrate DNA on the Ligation and Self-Adenylylation Reactions Catalyzed by T4 DNA Ligase. [PDF]
PLoS ONE, 2016 DNA ligases are essential both to in vivo replication, repair and recombination processes, and in vitro molecular biology protocols. Prior characterization of DNA ligases through gel shift assays has shown the presence of a nick site to be essential for ...
Robert J Bauer +2 more
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Stealing the spotlight: CUL4-DDB1 ubiquitin ligase docks WD40-repeat proteins to destroy
Cell Division, 2007 Recent investigation of Cullin 4 (CUL4) has ushered this class of multiprotein ubiquitin E3 ligases to center stage as critical regulators of diverse processes including cell cycle regulation, developmental patterning, DNA replication, DNA damage and ...
Zhang Hui, Higa Leigh
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BMC Pediatrics, 2019 Background DNA ligase IV deficiency is a rare autosomal recessive disorder caused by hypomorphic mutations in the DNA ligase IV (LIG4) gene. DNA ligase IV is an essential protein for the development of a healthy immune system as well as for the ...
Sarah Schober +10 more
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Saccharomyces cerevisiae DNA ligase IV supports imprecise end joining independently of its catalytic activity. [PDF]
PLoS Genetics, 2013 DNA ligase IV (Dnl4 in budding yeast) is a specialized ligase used in non-homologous end joining (NHEJ) of DNA double-strand breaks (DSBs). Although point and truncation mutations arise in the human ligase IV syndrome, the roles of Dnl4 in DSB repair ...
Kishore K Chiruvella +4 more
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The Action of DNA Ligase at Abasic Sites in DNA [PDF]
Journal of Biological Chemistry, 1998 Apurinic/apyrimidinic (AP) sites occur frequently in DNA as a result of spontaneous base loss or following removal of a damaged base by a DNA glycosylase. The action of many AP endonuclease enzymes at abasic sites in DNA leaves a 5'-deoxyribose phosphate (dRP) residue that must be removed during the base excision repair process.
D F, Bogenhagen, K G, Pinz
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Four Parallel Pathways in T4 Ligase‐Catalyzed Repair of Nicked DNA with Diverse Bending Angles
Advanced ScienceThe structural diversity of biological macromolecules in different environments contributes complexity to enzymological processes vital for cellular functions.
Na Li +15 more
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