نتایج جستجو برای: ran
تعداد نتایج: 9987 فیلتر نتایج به سال:
Recent studies in Xenopus egg extracts indicate that the small G protein Ran has a central role in spindle assembly and nuclear envelope reformation. We determined Ran localization and dynamics in cells during M phase. By immunofluorescence, Ran is accumulated on the chromosomes of meiosis-II-arrested Xenopus eggs. In living cells, fluorescently labeled Ran associated with the chromosomes in Xe...
Mediated import of proteins into the nucleus involves multiple cytosolic factors, including the small GTPase Ran. Whether Ran functions by interacting with other cytosolic proteins or components of the nuclear pore complex has been unclear. Furthermore, the precise transport step where Ran acts has not been determined. To address these questions, we have analyzed the binding interactions of Ran...
Background and Objectives: XPO5 is one of the important molecules that has been identified in the trophoblast cells of the placenta, which is involved in the miRNAs biogenesis and processing. RAN is the other protein, which is involved in the miRNAs processing. The presence of RAN (rs 14035) and XPO5 (rs 2257082) genes may affect the genes expression adjustment in the mother’s uterine and...
Ran is the only known member of the Ras superfamily of small GTP-binding proteins to be localized primarily inside the nucleus, and there is considerable evidence that Ran is closely involved in the traffic of macromolecules into and out of the nucleus [1,2]. Ran has been shown to be an essential factor for nuclear import in digitonin-permeabilized cells, and mutant forms of Ran inhibit both pr...
Ran is a small GTP-binding protein involved in several essential roles for cell viability. This observation implies Ran might be ubiquitously expressed during development. However, Ran shows a differentiated expression pattern that is restricted to specific tissues from embryo to adult. At early embryonic stages of mouse development we found persistent Ran expression in proliferating neural tis...
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