Publications by authors named "Aggeliki Skagia"

Article Synopsis
  • - The MCM motor, initially inactive as a double hexamer, is crucial for DNA replication and becomes activated through the recruitment of proteins GINS and Cdc45 during the S-phase of the cell cycle.
  • - Research reveals that the metazoan protein Downstream neighbor of Son (DONSON) plays a key role in the assembly of active CMG helicases by delivering GINS to MCM, though the specific effects on the MCM structure were unclear prior to this study.
  • - Using cryoelectron microscopy on Xenopus egg extracts, the study identifies a double CMG complex connected by a DONSON dimer, showing that this tethering is vital for DNA replication, with mutations in DONSON linked to issues in human
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Faithful cell division is the basis for the propagation of life and DNA replication must be precisely regulated. DNA replication stress is a prominent endogenous source of genome instability that not only leads to ageing, but also neuropathology and cancer development in humans. Specifically, the issues of how vertebrate cells select and activate origins of replication are of importance as, for example, insufficient origin firing leads to genomic instability and mutations in replication initiation factors lead to the rare human disease Meier-Gorlin syndrome.

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Complex cellular processes are driven by the regulated assembly and disassembly of large multiprotein complexes. While we are beginning to understand the molecular mechanism for assembly of the eukaryotic DNA replication machinery (replisome), we still know relatively little about the regulation of its disassembly at replication termination. Recently, the first elements of this process have emerged, revealing that the replicative helicase, at the heart of the replisome, is polyubiquitylated prior to unloading and that this unloading requires p97 segregase activity.

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The endophytic strain Cal.l.30, isolated from the medicinal plant , was selected among seven strains with plant growth promoting activity and strong biological potential against the postharvest fungal pathogen .

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Botrytis bunch rot caused by is one of the most economically significant post-harvest diseases of grapes. In the present study, we showed that the bacterial strain Bvel1 is phylogenetically affiliated to species. The strain Bvel1 and its secreted metabolites exerted an antifungal activity, under in vitro conditions, against .

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The nitrogen fixing Sinorhizobium meliloti possesses two genes, ppiA and ppiB, encoding two cyclophilin isoforms which belong to the superfamily of peptidyl prolyl cis/trans isomerases (PPIase, EC: 5.2.1.

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