Results 41 to 50 of about 3,517 (188)

Non-centrosomal TPX2-dependent regulation of the Aurora A kinase: functional implications for healthy and pathological cell division

open access: yesFrontiers in Oncology, 2016
Aurora A has been extensively characterized as a centrosomal kinase with essential functions during cell division including centrosome maturation and separation and spindle assembly. However, Aurora A localization is not restricted to the centrosomes and
Isabelle eVernos   +6 more
doaj   +1 more source

NuSAP, a Mitotic RanGTP Target That Stabilizes and Cross-links Microtubules [PDF]

open access: yesMolecular Biology of the Cell, 2006
Nucleolar and spindle-associated protein (NuSAP) was recently identified as a microtubule- and chromatin-binding protein in vertebrates that is nuclear during interphase. Small interfering RNA-mediated depletion of NuSAP resulted in aberrant spindle formation, missegregation of chromosomes, and ultimately blocked cell proliferation.
Ribbeck, K.   +13 more
openaire   +4 more sources

In vivo FRET imaging revealed a regulatory role of RanGTP in kinetochore-microtubule attachments via Aurora B kinase.

open access: yesPLoS ONE, 2012
Under the fluctuating circumstances provided by the innate dynamics of microtubules and opposing tensions resulted from microtubule-associated motors, it is vital to ensure stable kinetochore-microtubule attachments for accurate segregation.
Yoke-Peng Lee   +5 more
doaj   +1 more source

Molecular basis of C9orf72 poly-PR interference with the β-karyopherin family of nuclear transport receptors

open access: yesScientific Reports, 2022
Nucleocytoplasmic transport (NCT) is affected in several neurodegenerative diseases including C9orf72-ALS. It has recently been found that arginine-containing dipeptide repeat proteins (R-DPRs), translated from C9orf72 repeat expansions, directly bind to
Hamidreza Jafarinia   +2 more
doaj   +1 more source

New mitotic regulators released from chromatin

open access: yesFrontiers in Oncology, 2013
Faithful action of the mitotic spindle segregates duplicated chromosomes into daughter cells. Perturbations of this process result in chromosome mis-segregation, leading to chromosomal instability and cancer development.
Hideki eYokoyama, Oliver eGruss
doaj   +1 more source

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

RanGTP and the actin cytoskeleton keep paternal and maternal chromosomes apart during fertilization [PDF]

open access: yesJournal of Cell Biology, 2021
Zygotes require two accurate sets of parental chromosomes, one each from the mother and the father, to undergo normal embryogenesis. However, upon egg–sperm fusion in vertebrates, the zygote has three sets of chromosomes, one from the sperm and two from the egg.
Masashi Mori   +10 more
openaire   +2 more sources

Mechanism of RanGTP dependent microtubule assembly during mitosis [PDF]

open access: yes, 2014
During mitosis, spindle assembly involves different sources of microtubules including centrosomes and chromosomes. While the role of centrosomes has been extensively studied, we still do not fully understand how chromosomes trigger microtubule assembly ...
Scrofani, Jacopo
core   +1 more source

The first identified nucleocytoplasmic shuttling herpesviral capsid protein: herpes simplex virus type 1 VP19C. [PDF]

open access: yesPLoS ONE, 2012
VP19C is a structural protein of herpes simplex virus type 1 viral particle, which is essential for assembly of the capsid. In this study, a nuclear export signal (NES) of VP19C is for the first time identified and mapped to amino acid residues 342 to ...
Lei Zhao, Chunfu Zheng
doaj   +1 more source

Understanding RanGTP dependent microtubule assembly : Idenification of DnaJB6 as a RanGTP regulated factor involved in microtubule organization during mitosis [PDF]

open access: yes, 2017
Three microtubule (MT) assembly pathways participate in the assembly of the bipolar spindle: the centrosomal pathway, the augmin dependent amplification pathway and the RanGTP/chromosome dependent pathway. To form the spindle, all these MTs are organized
Rosas Salvans, Miquel
core   +1 more source

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