Conserved temperature-dependent expression of RNA-binding proteins in cyanobacteria with different temperature optima

Shigeki Ehira, Takashi Hamano, Tsunefusa Hayashida, Kouji Kojima, Hitoshi Nakamoto, Tetsuo Hiyama, Masayuki Ohmori, Sisinthy Shivaji, Naoki Sato

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The expression of the rbp genes, which encode small RNA-binding proteins with a single RNA-recognition motif, is known to increase at low temperature in Anabaena variabilis M3. The 5′-untranslated region (UTR) of the rbpA1 gene is involved in the cold-regulation. We compared the regulation of the rbp genes in three strains of cyanobacteria having different temperature optima, namely, a mesophilic strain Anabaena sp. PCC 7120, a thermophilic strain Thermosynechococcus elongatus BP-1, and a psychrophilic Antarctic strain Oscillatoria sp. SU1. In Anabaena 7120 and T. elongatus, all the rbp gene sequences are known, and the 5′-UTR sequences of some rbp genes have a high similarity to the 5′-UTR of rbpA1. We found that transcripts as well as protein products of these rbp genes accumulated at low temperature. In addition, the expression of rbp genes increased at low temperature in the Oscillatoria sp. SU1. This suggests that a mechanism of cold-regulation of rbp genes is common among various species of cyanobacteria that belong to different taxa and have different temperature optima.

Original languageEnglish
Pages (from-to)137-142
Number of pages6
JournalFEMS Microbiology Letters
Volume225
Issue number1
DOIs
Publication statusPublished - 2003 Aug 8
Externally publishedYes

Keywords

  • 5′-UTR
  • Cold-regulation
  • Cyanobacteria
  • RNA-binding protein

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology
  • Genetics

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  • Cite this

    Ehira, S., Hamano, T., Hayashida, T., Kojima, K., Nakamoto, H., Hiyama, T., Ohmori, M., Shivaji, S., & Sato, N. (2003). Conserved temperature-dependent expression of RNA-binding proteins in cyanobacteria with different temperature optima. FEMS Microbiology Letters, 225(1), 137-142. https://doi.org/10.1016/S0378-1097(03)00503-2