Exchange of macromolecules between nucleus and cytoplasm
نویسندگان
چکیده
منابع مشابه
Transport pathways of macromolecules between the nucleus and the cytoplasm.
Transport between the nucleus and cytoplasm involves both stationary components and mobile factors acting in concert to move macromolecules through the nuclear pore complex. Multiple transport pathways requiring both unique and shared components have been identified. In the past 18 months, new findings have shed light on the nature of some of the mobile components of these pathways. New recepto...
متن کاملTransport of macromolecules between the nucleus and the cytoplasm.
Nuclear transport is an energy-dependent process mediated by saturable receptors. Import and export receptors are thought to recognize and bind to nuclear localization signals or nuclear export signals, respectively, in the transported molecules. The receptor-substrate interaction can be direct or mediated by an additional adapter protein. The transport receptors dock their cargoes to the nucle...
متن کاملSodium exchange in the cytoplasm and nucleus of amphibian oocytes.
Oocytes of Rana pipiens were incubated in "Na-Ringer's solution and "Nal 3 Na exchange in the nucleus and cytoplasm followed by low-tempeiature microdissection. Cytoplasmic sodium consists of 2 kinetic fractions: the larger (88 %) slowly exchanging (t^ ~ 2 days), and the smaller (12%) rapidly exchanging (ij ~ 53 min). Nuclear sodium consists of a single fraction whose concentration is similar a...
متن کاملShuttling of galectin-3 between the nucleus and cytoplasm.
In previous studies, we documented that galectin-3 (M(r) approximately 30,000) is a pre-mRNA splicing factor. Recently, galectin-3 was identified as a component of a nuclear and cytoplasmic complex, the survival of motor neuron complex, through its interaction with Gemin4. To test the possibility that galectin-3 may shuttle between the nucleus and the cytoplasm, human fibroblasts (LG-1) were fu...
متن کاملDistribution of proteins between nucleus and cytoplasm of amoeba proteus
By transplanting nuclei between labeled and unlabeled cells, we determined the localization of the major proteins of amebas and described certain features of their intracellular distributon. We identified approximately 130 cellular proteins by fluorography of one-dimensional polyacrylamide electrophoretic gels and found that slightly less than half of them (designated NP, for nuclear proteins) ...
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ژورنال
عنوان ژورنال: Protoplasma
سال: 1967
ISSN: 0033-183X,1615-6102
DOI: 10.1007/bf01248006