FMRP binds Per1 mRNA and downregulates its protein expression in mice

Mol Brain. 2023 Apr 5;16(1):33. doi: 10.1186/s13041-023-01023-z.

Abstract

FMRP, an RNA-binding protein, has previously shown to be involved in regulation of circadian rhythms in flies and mice. However, the molecular mechanism remains elusive. Here we demonstrate that core circadian component Per1 mRNA was a target of FMRP and the association leads to reduced PER1 expression. In Fmr1 KO mice, the oscillation of PER1 protein expression was significantly affected in a temporal and tissue-dependent pattern when compared to WT mice. Our work thus identified Per1 mRNA as a novel target of FMRP and suggested a potential role of FMRP in regulation of circadian function.

Keywords: Circadian rhythm; FMRP; FXS; Per1.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Circadian Rhythm* / genetics
  • Fragile X Mental Retardation Protein / metabolism
  • Mice
  • Period Circadian Proteins / metabolism
  • RNA, Messenger
  • Transcription Factors* / metabolism

Substances

  • RNA, Messenger
  • Transcription Factors
  • Fragile X Mental Retardation Protein
  • Fmr1 protein, mouse
  • Per1 protein, mouse
  • Period Circadian Proteins