Results 41 to 50 of about 2,144,804 (323)

SUMOylation inhibits FOXM1 activity and delays mitotic transition [PDF]

open access: yes, 2014
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

open access: yesNucleic Acids Research, 2011
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]

open access: yes, 2003
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

open access: yesNature Communications, 2023
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]

open access: yes, 2020
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

open access: yesNature Communications, 2019
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]

open access: yes, 2004
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

open access: yesFrontiers in Genetics, 2016
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

Human DNA ligases I and III, but not ligase IV, are required for microhomology-mediated end joining of DNA double-strand breaks

open access: yesNucleic Acids Research, 2008
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]

open access: yes, 2017
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

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