Results 21 to 30 of about 324,731 (284)

Mitotically heritable, RNA polymerase II-independent H3K4 dimethylation stimulates INO1 transcriptional memory

open access: yeseLife, 2022
For some inducible genes, the rate and molecular mechanism of transcriptional activation depend on the prior experiences of the cell. This phenomenon, called epigenetic transcriptional memory, accelerates reactivation, and requires both changes in ...
Bethany Sump   +4 more
doaj   +1 more source

Nuclear Envelope: Nuclear Pore Complexity [PDF]

open access: yesCurrent Biology, 2005
A new study shows that the filamentous fungus, Aspergillus nidulans, which has a closed mitosis, does not maintain a continuous permeability barrier during mitosis. This work challenges current views of the differences between closed and open mitosis and has implications for understanding mitotic specific changes in the nuclear pore complex and Ran ...
openaire   +2 more sources

New Family Members of FG Repeat Proteins and Their Unexplored Roles During Phase Separation

open access: yesFrontiers in Cell and Developmental Biology, 2021
The condensation and compartmentalization of biomacromolecules in the cell are driven by the process of phase separation. The main effectors of phase separation are intrinsically disordered proteins, which include proteins with a phenylalanine-glycine ...
Yoichi Shinkai   +2 more
doaj   +1 more source

Nuclear magnetic resonance cryoporometry [PDF]

open access: yes, 2008
Nuclear Magnetic Resonance (NMR) cryoporometry is a technique for non-destructively determining pore size distributions in porous media through the observation of the depressed melting point of a confined liquid.
Mitchell, J.   +2 more
core   +1 more source

Poring over pores: nuclear pore complex insertion into the nuclear envelope

open access: yesTrends in Biochemical Sciences, 2013
The nuclear boundary is formed by the nuclear envelope (NE), a double membrane system that establishes a selective barrier between the nucleoplasm and the cytoplasm. Its barrier characteristics are determined by nuclear pore complexes (NPCs); huge protein assemblies that guard nucleocytoplasmic compartmentalization.
Rothballer Andrea, Kutay Ulrike
openaire   +2 more sources

Molecular Characterization and Functional Analysis of Annulate Lamellae Pore Complexes in Nuclear Transport in Mammalian Cells.

open access: yesPLoS ONE, 2015
Annulate lamellae are cytoplasmic organelles containing stacked sheets of membranes embedded with pore complexes. These cytoplasmic pore complexes at annulate lamellae are morphologically similar to nuclear pore complexes at the nuclear envelope ...
Sarita Raghunayakula   +4 more
doaj   +1 more source

Exo70-Mediated Recruitment of Nucleoporin Nup62 at the Leading Edge of Migrating Cells is Required for Cell Migration [PDF]

open access: yes, 2009
Nucleoporin Nup62 localizes at the central channel of the nuclear pore complex and is essential for nucleocytoplasmic transport. Through its FG-repeat domain, Nup62 regulates nuclear pore permeability and binds nuclear transport receptors.
Bayliss   +61 more
core   +1 more source

Early Steps of Hepatitis B Life Cycle: From Capsid Nuclear Import to cccDNA Formation

open access: yesViruses, 2021
Hepatitis B virus (HBV) remains a major public health concern, with more than 250 million chronically infected people who are at high risk of developing liver diseases, including cirrhosis and hepatocellular carcinoma.
João Diogo Dias   +2 more
doaj   +1 more source

Establishment and inheritance of epigenetic transcriptional memory

open access: yesFrontiers in Molecular Biosciences, 2022
For certain inducible genes, the rate and molecular mechanism of transcriptional activation depends on the prior experiences of the cell. This phenomenon, called epigenetic transcriptional memory, accelerates reactivation and requires both changes in ...
Bethany Sump, Jason Brickner
doaj   +1 more source

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