| Literature DB >> 15905365 |
Akira Takano1, Toshiya Endo, Tohru Yoshihisa.
Abstract
Previous evidence suggested that transfer RNAs (tRNAs) cross the nuclear envelope to the cytosol only once after maturing in the nucleus. We now present evidence for nuclear import of tRNAs in yeast. Several export mutants accumulate mature tRNAs in the nucleus even in the absence of transcription. Import requires energy but not the Ran cycle. These results indicate that tRNAs shuttle between the nucleus and cytosol.Entities:
Mesh:
Substances:
Year: 2005 PMID: 15905365 DOI: 10.1126/science.1113346
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728