Results 41 to 50 of about 83,026 (211)

A comparative analysis of telomere length maintenance circuits in fission and budding yeast

open access: yesFrontiers in Genetics, 2022
The natural ends of the linear eukaryotic chromosomes are protected by telomeres, which also play an important role in aging and cancer development. Telomere length varies between species, but it is strictly controlled in all organisms.
Iftah Peretz   +2 more
doaj   +1 more source

Spd2 assists Spd1 in modulation of RNR architecture but does not regulate deoxynucleotide pools [PDF]

open access: yes, 2014
In yeasts, small intrinsically disordered proteins (IDPs) modulate ribonucleotide reductase (RNR) activity to ensure an optimal supply of dNTPs for DNA synthesis. The S. pombe Spd1 protein can directly inhibit the large RNR subunit (R1), import the small
Basrai   +37 more
core   +1 more source

An aging-independent replicative lifespan in a symmetrically dividing eukaryote

open access: yeseLife, 2017
The replicative lifespan (RLS) of a cell—defined as the number of cell divisions before death—has informed our understanding of the mechanisms of cellular aging.
Eric C Spivey   +4 more
doaj   +1 more source

The DNA damage checkpoint pathway promotes extensive resection and nucleotide synthesis to facilitate homologous recombination repair and genome stability in fission yeast. [PDF]

open access: yes, 2014
DNA double-strand breaks (DSBs) can cause chromosomal rearrangements and extensive loss of heterozygosity (LOH), hallmarks of cancer cells. Yet, how such events are normally suppressed is unclear.
Blaikley, EJ   +13 more
core   +1 more source

Edge usage, motifs and regulatory logic for cell cycling genetic networks

open access: yes, 2013
The cell cycle is a tightly controlled process, yet its underlying genetic network shows marked differences across species. Which of the associated structural features follow solely from the ability to impose the appropriate gene expression patterns?
Krzywicki, A.   +2 more
core   +3 more sources

Emerging functions of mammalian mitochondrial fusion and fission [PDF]

open access: yes, 2005
Mitochondria provide a myriad of services to the cell, including energy production, calcium buffering and regulation of apoptosis. How these diverse functions are coordinated among the hundreds of mitochondria in a given cell is largely unknown, but is ...
Chan, David C., Chen, Hsiuchen
core   +1 more source

Actin dynamics controlled by IqgC, a RasGAP at the crossroads between the IQGAP and fungal GAP1 families

open access: yesFEBS Open Bio, EarlyView.
IqgC is a RasGAP from Dictyostelium discoideum. IqgC binds RasG via its RasGAP domain and deactivates it on macroendocytic cups, thereby suppressing the uptake of fluid and particles. IqgC has a positive effect on cell‐substratum adhesion, and its RGCt domain is required for recruitment to ventral foci.
Vedrana Filić   +3 more
wiley   +1 more source

Tailoring the Properties of Functional Materials With N‐Oxides

open access: yesAdvanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich   +5 more
wiley   +1 more source

Comparative Research: Regulatory Mechanisms of Ribosomal Gene Transcription in Saccharomyces cerevisiae and Schizosaccharomyces pombe

open access: yesBiomolecules, 2023
Restricting ribosome biosynthesis and assembly in response to nutrient starvation is a universal phenomenon that enables cells to survive with limited intracellular resources.
Hayato Hirai, Kunihiro Ohta
doaj   +1 more source

In vitro reactivation of spindle elongation in fission yeast nuc2 mutant cells. [PDF]

open access: yes, 1990
To investigate the mechanisms of spindle elongation and chromosome separation in the fission yeast Schizosaccharomyces pombe, we have developed an in vitro assay using a temperature-sensitive mutant strain, nuc2.
Cande, WZ   +3 more
core  

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