Results 21 to 30 of about 73,416 (250)
The rna-binding ubiquitin ligase mex3a affects glioblastoma tumorigenesis by inducing ubiquitylation and degradation of rig-i [PDF]
, 2020 Glioblastoma multiforme (GB) is the most malignant primary brain tumor in humans, with an overall survival of approximatively 15 months. The molecular heterogeneity of GB, as well as its rapid progression, invasiveness and the occurrence of drug ...
Basili, I. +12 more
core +1 more source
Making ends meet: repairing breaks in bacterial DNA by non-homologous end-joining. [PDF]
, 2006 DNA double-strand breaks (DSBs) are one of the most dangerous forms of DNA lesion that can result in genomic instability and cell death. Therefore cells have developed elaborate DSB-repair pathways to maintain the integrity of genomic DNA.
Bowater, Richard, Doherty, Aidan J
core +5 more sources
Nse2, a component of the Smc5-6 complex, is a SUMO ligase required for the response to DNA damage [PDF]
, 2005 The Schizosaccharomyces pombe SMC proteins Rad18 (Smc6) and Spr18 (Smc5) exist in a high-M(r) complex which also contains the non-SMC proteins Nse1, Nse2, Nse3, and Rad62.
Andrews, Emily A +5 more
core +2 more sources
European Journal of Biochemistry, 1992 A novel form of rat liver DNA ligase (molecular mass 100 kDa) can be differentiated from DNA ligase I by several biochemical parameters. It is a more heat‐labile enzyme and unable to join bluntended DNA, even in the presence of poly(ethylene glycol) concentrations which stimulate such joining by DNA ligase I and T4 DNA ligase.
R H Elder +3 more
openaire +4 more sources
RBR E3 ubiquitin ligases: new structures, new insights, new questions [PDF]
, 2014 The RBR (RING-BetweenRING-RING) or TRIAD [two RING fingers and a DRIL (double RING finger linked)] E3 ubiquitin ligases comprise a group of 12 complex multidomain enzymes.
Shaw, Gary S. +2 more
core +1 more source
The Action of DNA Ligase at Abasic Sites in DNA [PDF]
Journal of Biological Chemistry, 1998 Apurinic/apyrimidinic (AP) sites occur frequently in DNA as a result of spontaneous base loss or following removal of a damaged base by a DNA glycosylase. The action of many AP endonuclease enzymes at abasic sites in DNA leaves a 5'-deoxyribose phosphate (dRP) residue that must be removed during the base excision repair process.
Daniel F. Bogenhagen, Kevin G. Pinz
openaire +2 more sources
Closing the gap on DNA ligase [PDF]
Structure, 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 +3 more sources
SUMO chain-induced dimerization activates RNF4 [PDF]
, 2014 Dimeric RING E3 ligases interact with protein substrates and conformationally restrain the ubiquitin-E2-conjugating enzyme thioester complex such that it is primed for catalysis.
Alejandro Rojas-Fernandez +64 more
core +2 more sources
Mammalian DNA ligases. Biosynthesis and intracellular localization of DNA ligase I.
Journal of Biological Chemistry, 1990 Mammalian DNA ligase I is presumed to act in DNA replication. Rabbit antibodies against the homogeneous enzyme from calf thymus inhibited DNA ligase I activity and consistently recognized a single polypeptide of 125 kDa when cells from an established bovine kidney cell line (MDBK) were lysed rapidly by a variety of procedures and subjected to ...
Alan E. Tomkinson +2 more
openaire +3 more sources
The Sole DNA Ligase in Entamoeba histolytica Is a High-Fidelity DNA Ligase Involved in DNA Damage Repair [PDF]
Frontiers in Cellular and Infection Microbiology, 2018 The protozoan parasite Entamoeba histolytica is exposed to reactive oxygen and nitric oxide species that have the potential to damage its genome. E. histolytica harbors enzymes involved in DNA repair pathways like Base and Nucleotide Excision Repair. The majority of DNA repairs pathways converge in their final step in which a DNA ligase seals the DNA ...
Elisa Azuara-Liceaga +14 more
openaire +4 more sources