Results 31 to 40 of about 1,333 (119)

USP48 restrains resection by site-specific cleavage of the BRCA1 ubiquitin mark from H2A

open access: yesNature Communications, 2018
BRCA1 ligase activity is tightly regulated to maintain genome stability and confer DNA double strand repair. Here the authors identify USP48 as a H2A deubiquitinating enzyme that acts as a BRCA1 E3 ligase antagonist and characterize its role during DNA ...
Michael Uckelmann   +6 more
doaj   +1 more source

Effects of DNA-binding drugs on T4 DNA ligase [PDF]

open access: yesBiochemical Journal, 1990
A number of DNA intercalating and externally binding drugs have been found to inhibit nick sealing, cohesive and blunt end ligation, AMP-dependent DNA topoisomerization and EDTA-induced DNA nicking mediated by bacteriophage T4 DNA ligase. The inhibition seems to arise from drug-substrate interaction so that formation of active DNA-Mg2(+)-AMP-enzyme ...
A Montecucco   +4 more
openaire   +3 more sources

Interactome analysis and docking site prediction of DNA X-ray repair cross-complementing protein (XRCC) in Arabidopsis thaliana [PDF]

open access: yesNetwork Biology, 2020
There are seven homologs in eukaryotic RAD51 gene family which are conserved among animals and plants, and those are RAD51, DMC1, RAD51c, XRCC3, RAD51b, RAD51d and XRCC2.
Mohamed Ragab Abdel Gawwad   +2 more
doaj  

ATPase-dependent control of the Mms21 SUMO ligase during DNA repair.

open access: yesPLoS Biology, 2015
Modification of proteins by SUMO is essential for the maintenance of genome integrity. During DNA replication, the Mms21-branch of the SUMO pathway counteracts recombination intermediates at damaged replication forks, thus facilitating sister chromatid ...
Marcelino Bermúdez-López   +11 more
doaj   +1 more source

Case Report: Wide Spectrum of Manifestations of Ligase IV Deficiency: Report of 3 Cases

open access: yesFrontiers in Immunology, 2022
DNA ligase IV deficiency is a rare autosomal recessive disorder associated with impaired DNA repair mechanisms. Most patients with DNA repair defects present with neurologic deficits, combined immunodeficiency, bone marrow failure, and/or hematologic ...
Ana Costa e Castro   +10 more
doaj   +1 more source

DNA Ligases: Progress and Prospects [PDF]

open access: yesJournal of Biological Chemistry, 2009
DNA ligases seal 5'-PO4 and 3'-OH polynucleotide ends via three nucleotidyl transfer steps involving ligase-adenylate and DNA-adenylate intermediates. DNA ligases are essential guardians of genomic integrity, and ligase dysfunction underlies human genetic disease syndromes.
openaire   +2 more sources

In vitro Assay to Measure DNA Polymerase β Nucleotide Insertion Coupled with the DNA Ligation Reaction during Base Excision Repair

open access: yesBio-Protocol, 2017
We previously reported that oxidized nucleotide insertion by DNA polymerase β (pol β) can confound the DNA ligation step during base excision repair (BER) (Çağlayan et al., 2017).
Melike Çağlayan, Samuel Wilson
doaj   +1 more source

Plasmodium DNA ligase I is essential for parasite blood- and liver-stage development

open access: yesmSphere
DNA ligases are a fundamental class of enzymes required for DNA replication and repair. They catalyze the formation of phosphodiester bonds, specifically at single-strand breaks in double-stranded DNA.
Eisha Pandey   +4 more
doaj   +1 more source

Closing the gap on DNA ligase [PDF]

open access: yesStructure, 1996
The crystal structure of T7 DNA ligase complexed with ATP illuminates the mechanism of covalent catalysis by a superfamily of nucleotidyl transferases that includes the ATP-dependent polynucleotide ligases and the GTP-dependent mRNA capping enzymes.
openaire   +2 more sources

The E3 Ubiquitin Ligase Mind Bomb 1 Controls Adenovirus Genome Release at the Nuclear Pore Complex

open access: yesCell Reports, 2019
Summary: Adenoviruses (AdVs) cause respiratory, ocular, and gastrointestinal tract infection and inflammation in immunocompetent people and life-threatening disease upon immunosuppression.
Michael Bauer   +8 more
doaj   +1 more source

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