Results 11 to 20 of about 1,815,617 (316)

Cell Cycle Regulation [PDF]

open access: yesFly, 2007
Drosophila researchers met in sunny San Diego for the 49th annual meeting of The Genetics Society of America. It was cold outside and even colder inside. Like last year, ‘Mitosis, Meiosis and Cell Division’ was no longer a session. Instead, we searched out and covered talks and posters in ‘Cell Division and Growth Control’, ‘Gametogenesis ...
Kristin, Garcia   +2 more
openaire   +2 more sources

Do Cells Cycle? [PDF]

open access: yesProceedings of the National Academy of Sciences, 1973
We propose that a cell's life is divided into two fundamentally different parts. Some time after mitosis all cells enter a state (A) in which their activity is not directed towards replication. A cell may remain in the A-state for any lenght of time, throughout which its probability of leaving A-state remains constant. On leaving A-state, cells enter B-
J A, Smith, L, Martin
openaire   +2 more sources

The cell cycle [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2011
‘Dividing cells pass through a regular sequence of cell growth and division, known as the cell cycle’, according to a college textbook of biology published in 1983 [[1][1]], 5 years before the underlying principles of control were first laid bare during 1988, the annus mirabilis of cell ...
Hunt, T, Nasmyth, K, Novák, B
openaire   +1 more source

Antagonistic effects of mitochondrial matrix and intermembrane space proteases on yeast aging

open access: yesBMC Biology, 2022
Background In many organisms, aging is characterized by a loss of mitochondrial homeostasis. Multiple factors such as respiratory metabolism, mitochondrial fusion/fission, or mitophagy have been linked to cell longevity, but the exact impact of each one ...
Montserrat Vega   +6 more
doaj   +1 more source

IRBIT Directs Differentiation of Intestinal Stem Cell Progeny to Maintain Tissue Homeostasis

open access: yesiScience, 2020
Summary: The maintenance of the intestinal epithelium is ensured by the controlled proliferation of intestinal stem cells (ISCs) and differentiation of their progeny into various cell types, including enterocytes (ECs) that both mediate nutrient ...
Alexei Arnaoutov   +7 more
doaj   +1 more source

Cdc14 phosphatase counteracts Cdk-dependent Dna2 phosphorylation to inhibit resection during recombinational DNA repair

open access: yesNature Communications, 2023
Cyclin-dependent kinase (Cdk) stimulates resection of DNA double-strand breaks ends to generate single-stranded DNA (ssDNA) needed for recombinational DNA repair.
Adrián Campos   +7 more
doaj   +1 more source

Conditional control of fluorescent protein degradation by an auxin-dependent nanobody

open access: yesNature Communications, 2018
Current approaches to conditionally deplete target proteins require site-specific genetic engineering or have poor temporal control. Here the authors overcome these limitations by combining the AID system with nanobodies to reversibly degrade GFP-tagged ...
Katrin Daniel   +5 more
doaj   +1 more source

Phosphotransferase-dependent accumulation of (p)ppGpp in response to glutamine deprivation in Caulobacter crescentus

open access: yesNature Communications, 2016
The small molecule (p)ppGpp is commonly produced by bacteria as a signal of nutrient starvation. Here, Ronneau et al. show that (p)ppGpp accumulation in the model bacterium Caulobacter crescentusis modulated by a nitrogen-related phosphotransferase ...
Séverin Ronneau   +3 more
doaj   +1 more source

Identification of ubiquitin-proteasome system components affecting the degradation of the transcription factor Pap1

open access: yesRedox Biology, 2020
Signaling cascades respond to specific inputs, but also require active interventions to be maintained in their basal/inactive levels in the absence of the activating signal(s).
Luis Marte   +5 more
doaj   +1 more source

Comparing Mitochondrial Activity, Oxidative Stress Tolerance, and Longevity of Thirteen Ascomycota Yeast Species

open access: yesAntioxidants, 2023
Aging is characterized by a number of hallmarks including loss of mitochondrial homeostasis and decay in stress tolerance, among others. Unicellular eukaryotes have been widely used to study chronological aging.
Anna Gröger   +5 more
doaj   +1 more source

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