An archaeal RNA binding protein, FAU-1, is a novel ribonuclease related to rRNA stability in Pyrococcus and Thermococcus

Yoshiki Ikeda, Yasuhiro Okada, Asako Sato, Tamotsu Kanai, Masaru Tomita, Haruyuki Atomi, Akio Kanai

研究成果: Article

1 引用 (Scopus)

抜粋

Ribosome biogenesis and turnover are processes necessary for cell viability and proliferation, and many kinds of proteins are known to regulate these processes. However, many questions still remain, especially in the Archaea. Generally, several ribonucleases are required to process precursor rRNAs to their mature forms, and to degrade rRNAs for quality control. Here, we found that FAU-1, which is known to be an RNA binding protein, possesses an RNase activity against precursor 5S rRNA derived from P. furiosus and T. kodakarensis in the order Thermococcales in vitro. An in vitro analysis revealed that UA sequences in the upstream of 5S rRNA were preferentially degraded by addition of FAU-1. Moreover, a fau-1 gene deletion mutant of T. kodakarensis showed a delay of exponential phase, reduction of maximum cell number and significant changes in the nucleotide sequence lengths of its 5S, 16S, and 23S rRNAs in early exponential phase. Our results suggest that FAU-1 is a potential RNase involved in rRNA stability through maturation and/or degradation processes.

元の言語English
記事番号12674
ジャーナルScientific Reports
7
発行部数1
DOI
出版物ステータスPublished - 2017 12 1

    フィンガープリント

ASJC Scopus subject areas

  • General

これを引用