Results 1 to 10 of about 1,369,656 (306)

Mitochondrial Factors in the Cell Nucleus. [PDF]

open access: yesInt J Mol Sci, 2023
The origin of eukaryotic organisms involved the integration of mitochondria into the ancestor cell, with a massive gene transfer from the original proteobacterium to the host nucleus. Thus, mitochondrial performance relies on a mosaic of nuclear gene products from a variety of genomes.
González-Arzola K, Díaz-Quintana A.
europepmc   +4 more sources

The cell nucleus. A study in Burgundy. [PDF]

open access: yesNucleus, 2019
Wilhelm Bernhard's revolutionary microscopy techniques helped him put forward the hypothesis of specialized compartmentalization of the nucleus. He also described for the first time the nuclear bodies and peri-chromatin fibrils, and demonstrated that these granules contain an RNA component.
Demidov O   +3 more
europepmc   +6 more sources

MONONUCLEOTIDES OF THE CELL NUCLEUS [PDF]

open access: yesThe Journal of General Physiology, 1957
1. It has been demonstrated by ion exchange chromatography that the cell nucleus contains mononucleotides of adenine, guanine, cytosine, uracil, together with diphosphopyridine nucleotide, and several uridine diphosphate derivatives; the adenine nucleotides predominating in amount.
V. G. Allfrey   +2 more
openaire   +3 more sources

Cell Nucleus in Context [PDF]

open access: yesCritical Reviews™ in Eukaryotic Gene Expression, 2000
The molecular pathways that participate in regulation of gene expression are being progressively unraveled. Extracellular signals, including the binding of extracellular matrix and soluble molecules to cell membrane receptors, activate specific signal transducers that process information inside the cell leading to alteration in gene expression. Some of
Philippe Pujuguet   +2 more
openaire   +3 more sources

The protozoan nucleus [PDF]

open access: yes, 2016
The nucleus is arguably the defining characteristic of eukaryotes, distinguishing their cell organisation from both bacteria and archaea. Though the evolutionary history of the nucleus remains the subject of debate, its emergence differs from several ...
McCulloch, Richard, Navarro, Miguel
core   +1 more source

The cell nucleus. [PDF]

open access: yesBMJ, 1987
The cell nucleus is the information centre of the cell. It is responsible for copying highly selected regions of the genome into ribonucleic acid (RNA) and for supplying precisely regulated amounts of specific RNA molecules to the cytoplasm, where they are translated into proteins.
openaire   +3 more sources

MODELLING THE INFLUENCE OF NUCLEUS ELASTICITY ON CELL INVASION IN FIBER NETWORKS AND MICROCHANNELS [PDF]

open access: yes, 2013
Cell migration in highly constrained extracellular matrices is exploited in scaffold-based tissue engineering and is fundamental in a wide variety of physiological and pathological phenomena, among others in cancer invasion and development. Research into
Preziosi, Luigi, Scianna, Marco
core   +1 more source

Immunocytochemical localization of chromatin regions UV-microirradiated in S phase or anaphase : Evidence for a territorial organization of chromosomes during cell cycle of cultured Chinese hamster cells [PDF]

open access: yes, 1983
Chinese hamster cells (M3-1 line) in S phase were laser-UV-microirradiated (λ, 257 nm) at a small site of the nucleus. Cells were fixed either immediately thereafter or in subsequent stages of the cell cycle, including prophase and metaphase.
Avivi   +33 more
core   +1 more source

The Trypanosoma brucei AIR9-like protein is cytoskeleton-associated and is required for nucleus positioning and accurate cleavage furrow placement [PDF]

open access: yes, 2012
AIR9 is a cytoskeleton-associated protein in Arabidopsis thaliana with roles in cytokinesis and cross wall maturation, and reported homologues in land plants and excavate protists, including trypanosomatids.
Almeida Costa, Cristina   +7 more
core   +2 more sources

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