Results 81 to 90 of about 15,762 (228)

Copy number variation and expression of exportin-4 associates with severity of fibrosis in metabolic associated fatty liver disease

open access: yesEBioMedicine, 2021
Background Liver fibrosis risk is a heritable trait, the outcome of which is the net deposition of extracellular matrix by hepatic stellate cell-derived myofibroblasts.
Mayada Metwally   +21 more
semanticscholar   +1 more source

Nuclear Pore Mechanotransduction in Oncology: A Structural Axis of Vulnerability for Targeted Intervention

open access: yesAdvanced Materials, EarlyView.
Cancer‐associated NPC remodeling creates a high‐flux, low‐stringency nuclear state that supports malignant adaptation but increases mechanical fragility. Targeting the FG‐barrier or NPC scaffold may drive mechanostat failure, envelope rupture, DNA damage, and loss of nuclear integrity.
Sílvio Terra Stefanello   +5 more
wiley   +1 more source

mTOR-dependent phosphorylation controls TFEB nuclear export

open access: yesNature Communications, 2018
On amino acid deprivation TFEB translocates from the cytoplasm to the nucleus. Here the authors identify a nuclear export signal in TFEB that is recognized by the exportin CRM1, and show that dual phosphorylation at S142 and S138 by mTOR accelerates ...
Gennaro Napolitano   +9 more
doaj   +1 more source

Effect of prior treatments on selinexor, bortezomib, and dexamethasone in previously treated multiple myeloma

open access: yesJournal of Hematology & Oncology, 2021
Therapeutic regimens for previously treated multiple myeloma (MM) may not provide prolonged disease control and are often complicated by significant adverse events, including peripheral neuropathy.
Maria V. Mateos   +36 more
doaj   +1 more source

Exportin-1 functions as an adaptor for transcription factor-mediated docking of chromatin at the nuclear pore complex

open access: yesMolecules and Cells
Summary Nuclear pore proteins (Nups) physically interact with hundreds of chromosomal sites, impacting transcription. In yeast, transcription factors mediate interactions between Nups and enhancers and promoters.
Tiffany Ge   +13 more
semanticscholar   +1 more source

Deltacoronavirus Modulates circRNA cGLIS3 Metabolism to Evade Host Antiviral Response

open access: yesAdvanced Science, EarlyView.
This study reveals that both deltacoronavirus nucleocapsid protein and host RNA binding protein IGF2BP2 promote circular RNA GLIS3 (cGLIS3) biogenesis by binding to GLIS3 pre‐mRNA. The m6A modification‐mediated cGLIS3‐IGF2BP2 interaction weakens RNase L‐mediated degradation of cGLIS3 while facilitates a ubiquitin‐dependent degradation of IGF2BP2, thus ...
Liuyang Du   +10 more
wiley   +1 more source

Mechanistic Insights from Structural Analyses of Ran-GTPase-Driven Nuclear Export of Proteins and RNAs [PDF]

open access: yes, 2016
Understanding how macromolecules are rapidly exchanged between the nucleus and the cytoplasm through nuclear pore complexes is a fundamental problem in biology. Exportins are Ran-GTPase-dependent nuclear transport factors that belong to the karyopherin-β
Matsuura, Yoshiyuki
core   +1 more source

Substrate Selectivity of Exportin 5 and Dicer in the Biogenesis of MicroRNAs [PDF]

open access: yesCold Spring Harbor Symposia on Quantitative Biology, 2006
Each step in the biogenesis of microRNAs (miRNAs) depends on recognition of a correct substrate and efficient transport or processing of that RNA. Exportin5 (Exp5) and Dicer are proteins that mediate two key steps in this cascade, the nuclear export and cytoplasmic processing of microRNA precursor (pre-miRNAs). Xenopus laevis oocytes, eggs, and embryos
E, Lund, J E, Dahlberg
openaire   +2 more sources

Structural and functional investigation of cargo recognition by exportins [PDF]

open access: yes, 2022
Nucleocytoplasmic exchange is essential for eukaryotic cells. It proceeds through nuclear pore complexes and is largely mediated by Importin β-like nuclear transport receptors (Impβ-like NTRs). According to the direction of the transport, Impβ-like NTRs are classified as importins or exportins.
Aksu, Metin   +7 more
openaire   +2 more sources

A protein inventory of human ribosome biogenesis reveals an essential function of exportin 5 in 60S subunit export. [PDF]

open access: yesPLoS Biology, 2010
The assembly of ribosomal subunits in eukaryotes is a complex, multistep process so far mostly studied in yeast. In S. cerevisiae, more than 200 factors including ribosomal proteins and trans-acting factors are required for the ordered assembly of 40S ...
Thomas Wild   +9 more
doaj   +1 more source

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