Results 11 to 20 of about 225,059 (304)

Charge-transport-mediated recruitment of DNA repair enzymes [PDF]

open access: yesThe Journal of Chemical Physics, 2008
Damaged or mismatched bases in DNA can be repaired by base excision repair enzymes (BER) that replace the defective base. Although the detailed molecular structures of many BER enzymes are known, how they colocalize to lesions remains unclear. One hypothesis involves charge transport (CT) along DNA [Yavin et al., Proc. Natl. Acad. Sci. U.S.A. 102, 3546
Fok, Pak-Wing, Guo, Chin-Lin, Chou, Tom
openaire   +6 more sources

Inhibition of DNA Repair Enzymes as a Valuable Pharmaceutical Approach. [PDF]

open access: yesInt J Mol Sci, 2023
Although DNA repair enzymes play a crucial role in maintaining the integrity of the genome, the hyperactivity of certain enzymes of the DNA repair system can lead to the resistance of tumors to chemo- and radiotherapy, aimed at damaging the DNA of cancer
Volcho KP, Lavrik OI.
europepmc   +2 more sources

The Domino Effect: Nucleosome Dynamics and the Regulation of Base Excision Repair Enzymes

open access: yesDNA, 2022
DNA damage is induced by exogenous and endogenous sources, creating a variety of lesions. However, the cellular repair machinery that addresses and corrects this damage must contend with the fact that genomic DNA is sequestered in the nucleoprotein ...
Julia C. Cook, Sarah Delaney
doaj   +1 more source

BRCT domains of the DNA damage checkpoint proteins TOPBP1/Rad4 display distinct specificities for phosphopeptide ligands

open access: yeseLife, 2018
TOPBP1 and its fission yeast homologue Rad4, are critical players in a range of DNA replication, repair and damage signalling processes. They are composed of multiple BRCT domains, some of which bind phosphorylated motifs in other proteins. They thus act
Matthew Day   +5 more
doaj   +1 more source

DNA Repair Enzymes [PDF]

open access: yesAnnual Review of Biochemistry, 1982
The invention relates to methods of selection of agents and compositions for the treatment of proliferative diseases such as cancer. More specifically, the present invention relates to the methods of selecting compounds which modulate the activity of DNA repair enzymes HAB1 and HAB2 and their uses in the treatment of disorders, which would benefit from
openaire   +2 more sources

DNA damage by peroxynitrite characterized with DNA repair enzymes [PDF]

open access: yesNucleic Acids Research, 1996
The DNA damage induced by peroxynitrite in isolated bacteriophage PM2 DNA was characterized by means of several repair enzymes with defined substrate specificities. Similar results were obtained with peroxynitrite itself and with 3-morpholinosydnonimine (SIN-1), a compound generating the precursors of peroxynitrite, nitric oxide and superoxide.
B, Epe   +4 more
openaire   +2 more sources

Phosphorylation-mediated interactions with TOPBP1 couple 53BP1 and 9-1-1 to control the G1 DNA damage checkpoint

open access: yeseLife, 2019
Coordination of the cellular response to DNA damage is organised by multi-domain ‘scaffold’ proteins, including 53BP1 and TOPBP1, which recognise post-translational modifications such as phosphorylation, methylation and ubiquitylation on other proteins ...
Nicolas Bigot   +5 more
doaj   +1 more source

Resolving DNA Damage: Epigenetic Regulation of DNA Repair

open access: yesMolecules, 2020
Epigenetic research has rapidly evolved into a dynamic field of genome biology. Chromatin regulation has been proved to be an essential aspect for all genomic processes, including DNA repair.
Panagiotis Karakaidos   +2 more
doaj   +1 more source

A function of thymine DNA glycosylase-initiated DNA repair in maintaining epigenome stability [PDF]

open access: yes, 2013
The Thymine DNA Glycosylase (TDG) was initially discovered by its ability to excise the deamination products of cytosine and 5-methylcytosine (5-mC), and therefore thought to initiate base excision repair (BER) of the resulting G•U and G•T mismatches.
Jacobs, Angelika L.
core   +1 more source

FAN1 activity on asymmetric repair intermediates is mediated by an atypical monomeric virus-type replication-repair nuclease domain [PDF]

open access: yes, 2014
FAN1 is a structure-selective DNA repair nuclease with 5' flap endonuclease activity, involved in the repair of interstrand DNA crosslinks. It is the only eukaryotic protein with a virus-type replication-repair nuclease ("VRR-Nuc") "module" that commonly
David M.J. Lilley   +26 more
core   +1 more source

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