Results 11 to 20 of about 354,326 (330)

Loss of nuclear DNA ligase III reverts PARP inhibitor resistance in BRCA1/53BP1 double-deficient cells by exposing ssDNA gaps. [PDF]

open access: bronzeMol Cell, 2021
Paes Dias M   +20 more
europepmc   +3 more sources

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

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

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

SUMO chain formation is required for response to replication arrest in S. pombe [PDF]

open access: yes, 2009
SUMO is a ubiquitin-like protein that is post-translationally attached to one or more lysine residues on target proteins. Despite having only 18% sequence identity with ubiquitin, SUMO contains the conserved betabetaalphabetabetaalphabeta fold present in
A Gorg   +41 more
core   +17 more sources

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

Thermostable DNA ligases from hyperthermophiles in biotechnology

open access: yesFrontiers in Microbiology, 2023
DNA ligase is an important enzyme ubiquitous in all three kingdoms of life that can ligate DNA strands, thus playing essential roles in DNA replication, repair and recombination in vivo.
Jingru Shi   +3 more
doaj   +1 more source

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