Exportin-5 orthologues are functionally divergent among species

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Exportin-5 orthologues are functionally divergent among species

Exportin-5, an evolutionarily conserved nuclear export factor belonging to the importin-beta family of proteins, is known to play a role in the nuclear export of small noncoding RNAs such as precursors of microRNA, viral minihelix RNA and a subset of tRNAs in mammalian cells. In this study, we show that the exportin-5 orthologues from different species such as human, fruit fly and yeast exhibit...

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Exportin t and Exportin 5: tRNA and miRNA biogenesis - and beyond.

Abstract The biogenesis of most eukaryotic kinds of RNA requires nuclear export, which is mediated by a variety of specific nuclear transport receptors. The nuclear export receptors Exportin-t (Exp-t) and Exportin 5 (Exp5), and their homologues, are involved in the export of transfer RNA to the cytoplasm. Exp5 is further involved in additional nucleocytoplasmic transport pathways, which include...

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ژورنال

عنوان ژورنال: Nucleic Acids Research

سال: 2006

ISSN: 0305-1048,1362-4962

DOI: 10.1093/nar/gkl663