Results 81 to 90 of about 2,416,649 (374)

Mitochondrial DNA Ligase Is Dispensable for the Viability of Cultured Cells but Essential for mtDNA Maintenance*

Journal of Biological Chemistry, 2013
Background: Nonviability of cells lacking mitochondrial DNA ligase suggests essential function of this enzyme. Results: We report the isolation of viable Lig3−/− cells, which lack mtDNA.
I. Shokolenko, Rafik Z. Fayzulin, S. Katyal, P. Mckinnon, G. Wilson, M. Alexeyev   +5 more
semanticscholar   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Central role for the XRCC1 BRCT I domain in mammalian DNA single-strand break repair [PDF]

, 2002
The DNA single-strand break repair (SSBR) protein XRCC1 is required for genetic stability and for embryonic viability. XRCC1 possesses two BRCA1 carboxyl-terminal (BRCT) protein interaction domains, denoted BRCT I and II.
Caldecott, Keith W, Taylor, Richard M, Thistlethwaite, Angela   +2 more
core   +3 more sources

SCF ubiquitin E3 ligase regulates DNA double-strand breaks in early meiotic recombination [PDF]

, 2022
Yongjuan Guan, Huijuan Lin, N. Adrian Leu, Gordon Ruthel, Serge Y. Fuchs, Luca Busino, Mengcheng Luo, P. Jeremy Wang   +7 more
openalex   +1 more source

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

Molecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero, Alejandro Belmonte‐Fernández, Mónica González‐Moreno, Laura Rodríguez‐Cordero, Begoña Pérez‐Valderrama, Joaquín Herrero‐Ruíz, Francisco Romero, Carmen Sáez, Miguel Á. Japón   +8 more
wiley   +1 more source

The ubiquitin E3/E4 ligase, UBE4A, fine-tunes protein ubiquitylation and accumulation at sites of DNA damage facilitating double-strand break repair [PDF]

, 2018
Double-strand breaks (DSBs) are critical DNA lesions that robustly activate the elaborate DNA damage response (DDR) network. We identified a critical player in DDR fine-tuning - the E3/E4 ubiquitin ligase, UBE4A.
Baranes Bachar, Keren, Huertas Sánchez, Pablo, Levy Barda, Adva, Oehler, Judith, Soria Bretones, Isabel   +4 more
core   +1 more source

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

PLoS 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, Irene Pociño-Merino, Humberto Sánchez, Andrés Bueno, Clàudia Guasch, Seba Almedawar, Sergi Bru-Virgili, Eloi Garí, Claire Wyman, David Reverter, Neus Colomina, Jordi Torres-Rosell   +11 more
doaj   +1 more source

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

Bio-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

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

Frontiers 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, Raquel Maia, Sara Batalha, João Parente Freixo, Catarina Martins, Catarina Martins, Conceição Neves, Ana Isabel Cordeiro, João Farela Neves, João Farela Neves, João Farela Neves   +10 more
doaj   +1 more source

DNA Ligases: Progress and Prospects [PDF]

Journal 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