Results 31 to 40 of about 387,698 (305)

Supercoiling Theory and Model of Chromosomal Structures in Eukaryotic Cells [PDF]

open access: yes, 2019
About six billion base pairs of DNA reside highly orderly in each human cell’s nucleus through their manifestation as twenty-three pairs of chromosomes.
Tianhu, Li, Hao, Zhang
core   +1 more source

Output Regulation and Function Optimization of Mitochondria in Eukaryotes

open access: yesFrontiers in Cell and Developmental Biology, 2020
The emergence of endosymbiosis between aerobic alpha-proteobacterium and anaerobic eukaryotic cell precursors opened the chapter of eukaryotic evolution.
Miaolin Zeng   +5 more
doaj   +1 more source

3D ultrastructural organization of whole Chlamydomonas reinhardtii cells studied by nanoscale soft x-ray tomography [PDF]

open access: yes, 2012
The complex architecture of their structural elements and compartments is a hallmark of eukaryotic cells. The creation of high resolution models of whole cells has been limited by the relatively low resolution of conventional light microscopes and the ...
Achilleas S. Frangakis   +32 more
core   +1 more source

Groups without cultured representatives dominate eukaryotic picophytoplankton in the oligotrophic South East Pacific Ocean [PDF]

open access: yes, 2009
Background: Photosynthetic picoeukaryotes (PPE) with a cell size less than 3 µm play a critical role in oceanic primary production. In recent years, the composition of marine picoeukaryote communities has been intensively investigated by molecular ...
Marie, D.   +15 more
core   +1 more source

Cell-Based Sensor System Using L6 Cells for Broad Band Continuous Pollutant Monitoring in Aquatic Environments [PDF]

open access: yes, 2012
Pollution of drinking water sources represents a continuously emerging problem in global environmental protection. Novel techniques for real-time monitoring of water quality, capable of the detection of unanticipated toxic and bioactive substances, are ...
Ulrich Bohrn   +7 more
core   +1 more source

Identification of autophosphorylation sites in eukaryotic elongation factor-2 kinase [PDF]

open access: yes, 2012
eEF2K [eEF2 (eukaryotic elongation factor 2) kinase] phosphorylates and inactivates the translation elongation factor eEF2. eEF2K is not a member of the main eukaryotic protein kinase superfamily, but instead belongs to a small group of so-called ...
Hussain, Nusrat   +16 more
core   +1 more source

Ras inhibitors gate chemoattractant concentration range for chemotaxis through controlling GPCR-mediated adaptation and cell sensitivity

open access: yesFrontiers in Immunology, 2022
Chemotaxis plays an essential role in recruitment of leukocytes to sites of inflammation. Eukaryotic cells sense chemoattractant with G protein-coupled receptors (GPCRs) and chemotax toward gradients with an enormous concentration range through ...
Xuehua Xu, Tian Jin
doaj   +1 more source

Decreased MCM2-6 in Drosophila S2 cells does not generate significant DNA damage or cause a marked increase in sensitivity to replication interference. [PDF]

open access: yes, 2011
A reduction in the level of some MCM proteins in human cancer cells (MCM5 in U20S cells or MCM3 in Hela cells) causes a rapid increase in the level of DNA damage under normal conditions of cell proliferation and a loss of viability when the cells are ...
Cotterill, S.   +24 more
core   +1 more source

Defining acceptance criteria for silver nanoparticles: correlating synthesis quality with biological outcomes in an In Vitro Lung Cancer Model

open access: yesNano Trends
Lung cancer remains a leading cause of cancer-related mortality worldwide, underscoring the need for innovative therapeutic strategies. This study explores the development and evaluation of silver nanoparticles (AgNPs) synthesized under optimized heating
Bárbara Gomes   +9 more
doaj   +1 more source

SF3b4: A Versatile Player in Eukaryotic Cells

open access: yesFrontiers in Cell and Developmental Biology, 2020
Spliceosomes are large protein-RNA complexes regulating pre-mRNA processing in eukaryotes. SF3b4 encodes a core subunit of the U2-type spliceosome, loss- or gain-of-function of which often associates with abnormal cell growth, leading to tumorigenesis ...
Feng Xiong, Sha Li, Sha Li
doaj   +1 more source

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