Results 71 to 80 of about 1,048,189 (263)
Rad27/FEN1 prevents accumulation of Okazaki fragments and ribosomal DNA copy number changes
The budding yeast Rad27 is a structure‐specific endonuclease. Here, the authors reveal that Rad27 is crucial for maintaining the stability of the ribosomal RNA gene (rDNA) region. Rad27 deficiency leads to the accumulation of Okazaki fragments and changes in rDNA copy number.
Tsugumi Yamaji +3 more
wiley +1 more source
In Vivo DNA Re-replication Elicits Lethal Tissue Dysplasias
Summary: Mammalian DNA replication origins are “licensed” by the loading of DNA helicases, a reaction that is mediated by CDC6 and CDT1 proteins. After initiation of DNA synthesis, CDC6 and CDT1 are inhibited to prevent origin reactivation and DNA ...
Sergio Muñoz +6 more
doaj +1 more source
Avoiding chromosome pathology when replication forks collide [PDF]
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2013 Macmillan Publishers Limited.Chromosome duplication normally initiates through the assembly of replication fork complexes at defined ...
Lloyd, RG +3 more
core +1 more source
Replication of Damaged DNA [PDF]
DNA damage is generated continually inside cells. In order to be able to replicate past damaged bases (translesion synthesis), the cell employs a series of specialised DNA polymerases, which singly or in combination, are able to bypass many different types of damage.
openaire +2 more sources
Mitochondrial fatty acid oxidation is stimulated by red light irradiation
Light at different wavelengths has distinct effects on keratinocyte viability and metabolism. UVA light abrogates metabolic fluxes. Blue and green light have no effect on metabolic fluxes, while red light enhanced oxidative phosphorylation by promoting fatty acid oxidation. Keratinocytes are the primary constituents of sunlight‐exposed epidermis.
Manuel Alejandro Herrera +4 more
wiley +1 more source
Holliday junctions (HJs) are key DNA intermediates in homologous recombination. They link homologous DNA strands and have to be faithfully removed for proper DNA segregation and genome integrity.
Shun-Hsiao Lee +5 more
doaj +1 more source
Speed variations of bacterial replisomes
Replisomes are multi-protein complexes that replicate genomes with remarkable speed and accuracy. Despite their importance, their dynamics is poorly characterized, especially in vivo.
Deepak Bhat +4 more
doaj +1 more source
Tel1ATM dictates the replication timing of short yeast telomeres [PDF]
Telomerase action is temporally linked to DNA replication. Although yeast telomeres are normally late replicating, telomere shortening leads to early firing of subtelomeric DNA replication origins.
Alessandro Bianchi +4 more
core +2 more sources
In this review, we will summarize new approaches to the study of DNA replication in yeast made possible by recombinant DNA technology, and in particular, survey results obtained with in vitro replication systems. Other recent reviews that summarize previous yeast replication studies are those of Fangman and Zakian and Petes.
openaire +2 more sources
The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley +1 more source

