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Eur J Cell Biol. 2002 Nov;81(11):577-84.

A novel family of nuclear transport receptors mediates the export of messenger RNA to the cytoplasm.

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European Molecular Biology Laboratory, Heidelberg, Germany.


Fully processed mRNAs are exported to the cytoplasm where they direct protein synthesis. A general feature of mRNA export is that it is an active, receptor-mediated process. The mRNA export receptors are thought to recognize and bind to the mRNA-export cargoes either directly or indirectly (via adaptor proteins) and facilitate their translocation across the central channel of the nuclear pore complex (NPC). On the cytoplasmic side of the NPC, the exported mRNA is released and the receptor returns to the nucleoplasm, without the cargo, to initiate additional rounds of export. Recent, studies in yeast and in higher eukaryotes have led to the elucidation of an evolutionarily conserved pathway for the export of bulk mRNA to the cytoplasm.

[Indexed for MEDLINE]

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