Results 41 to 50 of about 2,144,804 (323)
SUMOylation inhibits FOXM1 activity and delays mitotic transition [PDF]
The forkhead box transcription factor FOXM1 is an essential effector of G2/M-phase transition, mitosis and the DNA damage response. As such, it is frequently deregulated during tumorigenesis. Here we report that FOXM1 is dynamically modified by SUMO1 but
Brosens, Jan J. +13 more
core +1 more source
Functional redundancy between DNA ligases I and III in DNA replication in vertebrate cells
In eukaryotes, the three families of ATP-dependent DNA ligases are associated with specific functions in DNA metabolism. DNA ligase I (LigI) catalyzes Okazaki-fragment ligation at the replication fork and nucleotide excision repair (NER).
H. Arakawa +6 more
semanticscholar +1 more source
Identification of novel components of Trypanosoma brucei editosomes [PDF]
The editosome is a multiprotein complex that catalyzes the insertion and deletion of uridylates that occurs during RNA editing in trypanosomatids. We report the identification of nine novel editosome proteins in Trypanosoma brucei.
Carmean, Nicole +6 more
core +2 more sources
BioE3 identifies specific substrates of ubiquitin E3 ligases
Hundreds of E3 ligases play a critical role in recognizing specific substrates for modification by ubiquitin (Ub). Separating genuine targets of E3s from E3-interactors remains a challenge. We present BioE3, a powerful approach for matching substrates to
Orhi Barroso-Gomila +14 more
doaj +1 more source
UBP12 and UBP13 negatively regulate the activity of the ubiquitin-dependent peptidases DA1, DAR1 and DAR2 [PDF]
Protein ubiquitination is a very diverse post-translational modification leading to protein degradation or delocalization, or altering protein activity. In Arabidopsis thaliana, two E3 ligases, BIG BROTHER (BB) and DA2, activate the latent peptidases DA1,
Chen, Ying +10 more
core +1 more source
Two-tiered enforcement of high-fidelity DNA ligation
DNA ligases catalyze the joining of DNA strands to complete DNA replication, recombination and repair transactions. Here the authors present X-ray structures and kinetic analyses of LIG1 complexes with undamaged and oxidatively damaged DNA that unveil ...
Percy P. Tumbale +5 more
doaj +1 more source
Characterization of a temperature-sensitive DNA ligase from Escherichia coli [PDF]
DNA ligases are essential enzymes in cells due to their ability to join DNA strand breaks formed during DNA replication. Several temperature-sensitive mutant strains of Escherichia coli, including strain GR501, have been described which can be ...
Bowater, Laura +8 more
core +1 more source
Global-genome Nucleotide Excision Repair Controlled by Ubiquitin/Sumo Modifiers
Global-genome nucleotide excision repair (GG-NER) prevents genome instability by excising a wide range of structurally unrelated DNA base adducts and crosslinks induced by chemical carcinogens, ultraviolet (UV) radiation or intracellular metabolic by ...
Peter eRuethemann +2 more
doaj +1 more source
DNA nonhomologous end-joining (NHEJ) and homologous recombination are two distinct pathways of DNA double-strand break repair in mammalian cells. Biochemical and genetic studies showed that DNA ends can also be joined via microhomology-mediated end ...
L. Liang +6 more
semanticscholar +1 more source
Parkin-independent mitophagy controls chemotherapeutic response in cancer cells [PDF]
Mitophagy is an evolutionarily conserved process that selectively targets impaired mitochondria for degradation. Defects in mitophagy are often associated with diverse pathologies, including cancer.
Bossowski, Jozef P. +13 more
core +2 more sources

