Results 1 to 10 of about 1,333 (119)

The discovery of the mechanisms of biological synthesis of nucleic acids: 1959 Nobel laureates S. Ochoa and A. Kornberg [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2021
Alongside the chemical and physical research of nucleic acids in the 1940s-50s, the mechanisms of their biosynthesis were investigated. Thus, in 1959, Severo Ochoa and Arthur Kornberg were awarded the Nobel Prize in Physiology or Medicine for the ...
O. P. Matyshevska   +2 more
doaj   +1 more source

MAMMALIAN DNA LIGASES [PDF]

open access: yesAnnual Review of Biochemistry, 1992
DNA LIGASE I .... ... ....... ...... . . . . . .. . . . .. ........ . 255 Structure. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255 Gene Structure and Chromosome Mapping . . . . ......... . . . . . .. . . . . .
T, Lindahl, D E, Barnes
openaire   +3 more sources

The DNA binding domain and the C-terminal region of DNA Ligase IV specify its role in V(D)J recombination.

open access: yesPLoS ONE, 2023
DNA Ligase IV is responsible for the repair of DNA double-strand breaks (DSB), including DSBs that are generated during V(D)J recombination. Like other DNA ligases, Ligase IV contains a catalytic core with three subdomains-the DNA binding (DBD), the ...
Vidyasagar Malashetty   +6 more
doaj   +1 more source

Comparative analysis of the end-joining activity of several DNA ligases. [PDF]

open access: yesPLoS ONE, 2017
DNA ligases catalyze the repair of phosphate backbone breaks in DNA, acting with highest activity on breaks in one strand of duplex DNA. Some DNA ligases have also been observed to ligate two DNA fragments with short complementary overhangs or blunt ...
Robert J Bauer   +6 more
doaj   +1 more source

Escherichia coli DNA ligase B may mitigate damage from oxidative stress. [PDF]

open access: yesPLoS ONE, 2017
Escherichia coli encodes two DNA ligases, ligase A, which is essential under normal laboratory growth conditions, and ligase B, which is not. Here we report potential functions of ligase B.
Truston J Bodine   +6 more
doaj   +1 more source

Structures of LIG1 that engage with mutagenic mismatches inserted by polβ in base excision repair

open access: yesNature Communications, 2022
Ligase I seals two ends of DNA during DNA repair and replication. Here — solving structures of Ligase I with imperfect DNA harboring mismatches incorporated by DNA polymerase — the authors reveal how the repair proteins maintain fidelity at final ...
Qun Tang   +3 more
doaj   +1 more source

Bacterial DNA ligases [PDF]

open access: yesMolecular Microbiology, 2001
DNA ligases join breaks in the phosphodiester backbone of DNA molecules and are used in many essential reactions within the cell. All DNA ligases follow the same reaction mechanism, but they may use either ATP or NAD+ as a cofactor. All Bacteria (eubacteria) contain NAD+‐dependent DNA ligases, and the uniqueness of these enzymes to Bacteria makes them ...
Wilkinson, A, Day, J, Bowater, R
openaire   +3 more sources

High-fidelity DNA ligation enforces accurate Okazaki fragment maturation during DNA replication

open access: yesNature Communications, 2021
DNA ligase 1 (LIG1) finalizes eukaryotic nuclear DNA synthesis by sealing Okazaki fragments using DNA end-joining reactions. Here the authors, by studying an engineered low-fidelity LIG1, reveal that LIG1 is a highly accurate DNA ligase in vivo.
Jessica S. Williams   +5 more
doaj   +1 more source

Differential requirement for BRCA1-BARD1 E3 ubiquitin ligase activity in DNA damage repair and meiosis in the Caenorhabditis elegans germ line.

open access: yesPLoS Genetics, 2023
The tumor suppressor BRCA1-BARD1 complex regulates many cellular processes; of critical importance to its tumor suppressor function is its role in genome integrity.
Qianyan Li   +4 more
doaj   +1 more source

Horizontal acquisition of a DNA ligase improves DNA damage tolerance in eukaryotes

open access: yesNature Communications, 2023
Bdelloid rotifers are part of the restricted circle of multicellular animals that can withstand a wide range of genotoxic stresses at any stage of their life cycle. In this study, bdelloid rotifer Adineta vaga is used as a model to decipher the molecular
Emilien Nicolas   +10 more
doaj   +1 more source

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