Results 41 to 50 of about 50,736 (296)

Sfr1, a Tetrahymena thermophila Sfi1 Repeat Protein, Modulates the Production of Cortical Row Basal Bodies

open access: yesmSphere, 2016
Basal bodies are essential microtubule-based structures that template, anchor, and orient cilia at the cell surface. Cilia act primarily in the generation of directional fluid flow and sensory reception, both of which are utilized for a broad spectrum of
Westley Heydeck   +4 more
doaj   +1 more source

Basal body stability and ciliogenesis requires the conserved component Poc1 [PDF]

open access: yes, 2009
Centrioles are the foundation for centrosome and cilia formation. The biogenesis of centrioles is initiated by an assembly mechanism that first synthesizes the ninefold symmetrical cartwheel and subsequently leads to a stable cylindrical microtubule ...
Abal   +87 more
core   +2 more sources

Involvement of a putative intercellular signal-recognizing G protein-coupled receptor in the engulfment of Salmonella by the protozoan Tetrahymena [PDF]

open access: yesOpen Veterinary Journal, 2013
In an effort to investigate the molecular basis of protozoa engulfment-mediated hypervirulence of Salmonella in cattle, we evaluated protozoan G protein-coupled receptors (GPCRs) as transducers of Salmonella engulfment by the model protozoan Tetrahymena.
P.N. Agbedanu   +7 more
doaj  

An evolutionarily conserved phosphatidate phosphatase maintains lipid droplet number and endoplasmic reticulum morphology but not nuclear morphology

open access: yesBiology Open, 2017
Phosphatidic acid phosphatases are involved in the biosynthesis of phospholipids and triacylglycerol, and also act as transcriptional regulators. Studies to ascertain their role in lipid metabolism and membrane biogenesis are restricted to Opisthokonta ...
Anoop Narayana Pillai   +2 more
doaj   +1 more source

Multilevel interrogation of H3.3 reveals a primordial role in transcription regulation

open access: yesEpigenetics & Chromatin, 2023
Background Eukaryotic cells can rapidly adjust their transcriptional profile in response to molecular needs. Such dynamic regulation is, in part, achieved through epigenetic modifications and selective incorporation of histone variants into chromatin. H3.
Syed Nabeel-Shah   +12 more
doaj   +1 more source

Reactivation of ethanol-calcium-isolated cilia from Tetrahymena pyriformis [PDF]

open access: yes, 1967
Cilia isolated from Tetrahymena after ciliary shedding is induced by the addition of CaCl2 or other salts to cells suspended in an ethanol solution (4, 6, 11) have been studied chemically and enzymatically (4, 6, 11, 12, 13), but until now have never ...
Winicur, Sandra
core   +2 more sources

RNAi-dependent Polycomb repression controls transposable elements in Tetrahymena

open access: yesGenes & Development, 2019
In this study, Zhao et al. show that in the protozoan Tetrahymena thermophila, germline-specific internally eliminated sequences (IESs) become transcriptionally activated in mutants deficient in the RNAi-dependent Polycomb repression pathway.
Xiaolu Zhao   +13 more
semanticscholar   +1 more source

N6-adenine DNA methylation is associated with the linker DNA of H2A.Z-containing well-positioned nucleosomes in Pol II-transcribed genes in Tetrahymena

open access: yesNucleic Acids Research, 2017
DNA N6-methyladenine (6mA) is newly rediscovered as a potential epigenetic mark across a more diverse range of eukaryotes than previously realized. As a unicellular model organism, Tetrahymena thermophila is among the first eukaryotes reported to contain
Yuanyuan Wang   +4 more
semanticscholar   +1 more source

Mutation accumulation in Tetrahymena [PDF]

open access: yesBMC Evolutionary Biology, 2010
The rate and fitness effects of mutations are key in understanding the evolution of every species. Traditionally, these parameters are estimated in mutation accumulation experiments where replicate lines are propagated in conditions that allow mutations to randomly accumulate without the purging effect of natural selection.
Brito, Patrícia H.   +3 more
openaire   +4 more sources

Genome-wide analysis of the phosphoinositide kinome from two ciliates reveals novel evolutionary links for phosphoinositide kinases in eukaryotic cells. [PDF]

open access: yesPLoS ONE, 2013
BACKGROUND: The complexity of phosphoinositide signaling in higher eukaryotes is partly due to expansion of specific families and types of phosphoinositide kinases (PIKs) that can generate all phosphoinositides via multiple routes.
George Leondaritis   +3 more
doaj   +1 more source

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