A novel importin α from rice, a component involved in the process of nuclear protein transport

Toshisuke Iwasaki, Rikyu Matsuki, Kazuhiro Shoji, Kazutsuka Sanmiya, Mitsue Miyao, Naoki Yamamoto

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In eukaryotes, nuclear proteins that are transported into nuclei have nuclear localization signals (NLSs), which are recognized by proteins called importin α. We isolated a rice cDNA, #61L, and the corresponding gene that encodes a protein, which shows significant homology to the importin α. Although the encoded protein had only 23-27% amino acid identity to the importin as from various organisms including plants, the fusion protein with glutathione S-transferase showed a specific binding activity to the NLS of SV40 T-antigen. These results suggest that the rice #61L protein is a novel importin α in plants.

Original languageEnglish
Pages (from-to)259-262
Number of pages4
JournalFEBS Letters
Volume428
Issue number3
DOIs
Publication statusPublished - 1998 May 29
Externally publishedYes

Keywords

  • Importin α
  • Nuclear localization signal
  • Nuclear protein import
  • Rice (Oryza sativa)

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

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