The ribB FMN riboswitch from Escherichia coli operates at the transcriptional and translational level and regulates riboflavin biosynthesis

Danielle Pedrolli, Simone Langer, Birgit Hobl, Julia Schwarz, Masayuki Hashimoto, Matthias Mack

研究成果: Article同行評審

34 引文 斯高帕斯(Scopus)

摘要

FMN riboswitches are genetic elements that, in many bacteria, control genes responsible for biosynthesis and/or transport of riboflavin (vitamin B2). We report that the Escherichia coli ribB FMN riboswitch controls expression of the essential gene ribB coding for the riboflavin biosynthetic enzyme 3,4-dihydroxy-2-butanone-4-phosphate synthase (RibB; EC 4.1.99.12). Our data show that the E. coli ribB FMN riboswitch is unusual because it operates at the transcriptional and also at the translational level. Expression of ribB is negatively affected by FMN and by the FMN analog roseoflavin mononucleotide, which is synthesized enzymatically from roseoflavin and ATP. Consequently, in addition to flavoenzymes, the E. coli ribB FMN riboswitch constitutes a target for the antibiotic roseoflavin produced by Streptomyces davawensis. FMN riboswitches control genes responsible for biosynthesis and/or transport of riboflavin. The Escherichia coli ribB FMN riboswitch controls expression of the essential gene ribB (RibB; EC 4.1.99.12) and operates at the transcriptional and translational level. Expression of ribB is negatively affected by FMN and by roseoflavin mononucleotide (RoFMN), a derivative of the antibiotic roseoflavin produced by Streptomyces davawensis.

原文English
頁(從 - 到)3230-3242
頁數13
期刊FEBS Journal
282
發行號16
DOIs
出版狀態Published - 2015 八月 1

All Science Journal Classification (ASJC) codes

  • 生物化學
  • 分子生物學
  • 細胞生物學

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