Results 11 to 20 of about 3,830 (141)

In vivo analysis of protein crowding within the nuclear pore complex in interphase and mitosis [PDF]

open access: yesScientific Reports, 2017
The central channel of the nuclear pore complex (NPC) is occupied by non-structured polypeptides with a high content of Phe-Gly (FG) motifs. This protein-rich environment functions as an entropic barrier that prevents the passage of molecules, as well as
Hide A. Konishi   +3 more
doaj   +2 more sources

Cytoplasmic dynamics of the general nuclear import machinery in apically growing syncytial cells. [PDF]

open access: yesPLoS ONE, 2013
Karyopherins are transporters involved in the bidirectional, selective and active transport of macromolecules through nuclear pores. Importin-β1 is the paradigm of karyopherins and, together with its cargo-adapter importin-α, mediates the general nuclear
Oier Etxebeste   +4 more
doaj   +1 more source

Characterization of the nuclear import mechanism of the CCAAT-regulatory subunit Php4. [PDF]

open access: yesPLoS ONE, 2014
Php4 is a nucleo-cytoplasmic shuttling protein that accumulates in the nucleus during iron deficiency. When present in the nucleus, Php4 associates with the CCAAT-binding protein complex and represses genes encoding iron-using proteins.
Md Gulam Musawwir Khan   +3 more
doaj   +1 more source

Karyopherins: potential biological elements involved in the delayed graft function in renal transplant recipients. [PDF]

open access: yes, 2014
Background: Immediately after renal transplantation, patients experience rapid and significant improvement of their clinical conditions and undergo considerable systemic and cellular modifications.
Ancona N   +9 more
core   +4 more sources

C9orf72 arginine-rich dipeptide repeat proteins disrupt karyopherin-mediated nuclear import

open access: yeseLife, 2020
Disruption of nucleocytoplasmic transport is increasingly implicated in the pathogenesis of neurodegenerative diseases, including ALS caused by a C9orf72 hexanucleotide repeat expansion. However, the mechanism(s) remain unclear.
Lindsey R Hayes   +4 more
doaj   +1 more source

Evaluation of the role of KPNA2 mutations in breast cancer prognosis using bioinformatics datasets

open access: yesBMC Cancer, 2022
Breast cancer, comprising of several sub-phenotypes, is a leading cause of female cancer-related mortality in the UK and accounts for 15% of all cancer cases. Chemoresistant sub phenotypes of breast cancer remain a particular challenge.
Layla Alnoumas   +6 more
doaj   +1 more source

The Ebola Virus Interferon Antagonist VP24 Undergoes Active Nucleocytoplasmic Trafficking

open access: yesViruses, 2021
Viral interferon (IFN) antagonist proteins mediate evasion of IFN-mediated innate immunity and are often multifunctional, with distinct roles in viral replication.
Angela R. Harrison   +3 more
doaj   +1 more source

Nucleocytoplasmic Trafficking Perturbation Induced by Picornaviruses

open access: yesViruses, 2021
Picornaviruses are positive-stranded RNA viruses. Even though replication and translation of their genome take place in the cytoplasm, these viruses evolved different strategies to disturb nucleocytoplasmic trafficking of host proteins and RNA. The major
Belén Lizcano-Perret, Thomas Michiels
doaj   +1 more source

Loss of the importin Kpna2 causes infertility in male mice by disrupting the translocation of testis-specific transcription factors

open access: yesiScience, 2023
Summary: Karyopherins mediate the movement between the nucleus and cytoplasm of specific proteins in diverse cellular processes. Through a loss-of-function approach, we here examine the role of Karyopherin Subunit Alpha 2 (Kpna2) in spermatogenesis ...
Paula Navarrete-López   +6 more
doaj   +1 more source

Exportins can inhibit major mitotic assembly events in vitro: membrane fusion, nuclear pore formation, and spindle assembly

open access: yesNucleus, 2020
Xenopus egg extracts are a powerful in vitro tool for studying complex biological processes, including nuclear reconstitution, nuclear membrane and pore assembly, and spindle assembly.
Matthew S. Nord   +5 more
doaj   +1 more source

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