Results 11 to 20 of about 91,885 (305)

The enteropathogenic E. coli effector EspF targets and disrupts the nucleolus by a process regulated by mitochondrial dysfunction. [PDF]

open access: yesPLoS Pathogens, 2010
The nucleolus is a multifunctional structure within the nucleus of eukaryotic cells and is the primary site of ribosome biogenesis. Almost all viruses target and disrupt the nucleolus--a feature exclusive to this pathogen group. Here, using a combination
Paul Dean   +5 more
doaj   +1 more source

Matrix Metalloprotease-7 Mediates Nucleolar Assembly and Intra-nucleolar Cleaving p53 in Gefitinib-Resistant Cancer Stem Cells

open access: yesiScience, 2020
Summary: The enlarged distinct bulky-ball-like nucleolus matrix assembly is observed in most cancer stem cells (CSCs); however, the underlying mechanism is largely unknown.
Wei-Hsuan Yu   +8 more
doaj   +1 more source

The nucleolus functions as the compartment for histone H2B protein degradation

open access: yesiScience, 2021
Summary: Histones are main components of chromatin, and the protein levels of histones significantly affect chromatin assembly. However, how histone protein levels are regulated, especially whether and how histones are degraded, is largely unclear. Here,
Yanping Liu   +12 more
doaj   +1 more source

The F-actin filament capping protein CapG is a bona fide nucleolar protein [PDF]

open access: yes, 2008
Actin works in concert with myosin I to regulate the transcription of ribosomal genes in the nucleolus. Recently, nucleolar actin has been shown to be active in its polymeric form raising the question how actin dynamics is regulated in the nucleolus ...
Gettemans, Jan   +3 more
core   +2 more sources

Studies on the relation between heme and nucleic acid syntheses in erythroid cell. 3. Nucleolus of erythroblast, changes in relation with cell specialization [PDF]

open access: yes, 1969
The disappearance of nucleolus has been traced in the rat erythroid cells in relation with the cell specialization under varying conditions, i. e. in anemia with or without treatment by bromouracil and aminopterin.
Shigehisa, Morio
core   +1 more source

Nucleolar Organization and Functions in Health and Disease

open access: yesCells, 2020
The nucleolus is a prominent, membraneless compartment found within the nucleus of eukaryotic cells. It forms around ribosomal RNA (rRNA) genes, where it coordinates the transcription, processing, and packaging of rRNA to produce ribosomal subunits ...
Ursula Stochaj, Stephanie C. Weber
doaj   +1 more source

Distinct dynamics of the nucleolus in response to nutrient availability and during development in the rice blast fungus

open access: yesmBio, 2023
The nucleolus has emerged as a central hub for nuclear functions in eukaryotes. Studies in mammals and the model yeast Saccharomyces cerevisiae showed that the nucleolus is pivotal to nuclear functions other than ribosome biogenesis.
Eunbyeol Cho   +3 more
doaj   +1 more source

Nuclear DDX3 expression predicts poor outcome in colorectal and breast cancer [PDF]

open access: yes, 2017
Purpose: DEAD box protein 3 (DDX3) is an RNA helicase with oncogenic properties that shuttles between the cytoplasm and nucleus. The majority of DDX3 is found in the cytoplasm, but a subset of tumors has distinct nuclear DDX3 localization of yet unknown ...
Bol, Guus M.   +10 more
core   +10 more sources

Nucleolar Proteome Analysis and Proteasomal Activity Assays Reveal a Link between Nucleolus and 26S Proteasome in A. thaliana

open access: yesFrontiers in Plant Science, 2017
In all eukaryotic cells, the nucleolus is functionally and structurally linked to rRNA synthesis and ribosome biogenesis. This compartment contains as well factors involved in other cellular activities, but the functional interconnection between non ...
Charlotte Montacié   +17 more
doaj   +1 more source

Nucleolar accumulation of RNA binding proteins induced by Actinomycin D is functional in Trypanosoma cruzi and Leishmania mexicana but not in T. brucei. [PDF]

open access: yesPLoS ONE, 2011
We have recently shown in T. cruzi that a group of RNA Binding Proteins (RBPs), involved in mRNA metabolism, are accumulated into the nucleolus in response to Actinomycin D (ActD) treatment. In this work, we have extended our analysis to other members of
Ezequiel Názer, Daniel O Sánchez
doaj   +1 more source

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