Recent progress toward RNA manipulation with engineered pentatricopeptide repeat proteins

Takayoshi Imai, Yusuke Yagi, Takahiro Nakamura

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)


Pentatricopeptide repeat (PPR) proteins are RNA-binding proteins that are widely distributed in plants. They contain 2 to 30 repeating units of ~35-amino acid PPR motifs. They are known to play important roles in RNA processing, RNA editing, and translational regulation. Recent studies on the RNA recognition mode of PPR proteins revealed that one PPR motif interacts with one nucleotide. In addition, it was revealed that amino acids at three specific positions in a single motif serve to specify its binding base. Thus, mutation of these amino acids can cause a modification of the binding specificity of PPR motifs. Indeed, the engineered PPR motifs fused with various effector domains are shown to bind to and manipulate RNAs in a controlled manner. In this review, we summarize the recent progress in structural studies on PPR motifs. We focus on their RNA recognition mode and discuss the potentials of PPR as novel, versatile tools for RNA manipulation.

Original languageEnglish
Title of host publicationApplied RNA Bioscience
PublisherSpringer Singapore
Number of pages10
ISBN (Electronic)9789811083723
ISBN (Print)9789811083716
Publication statusPublished - Apr 10 2018

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)


Dive into the research topics of 'Recent progress toward RNA manipulation with engineered pentatricopeptide repeat proteins'. Together they form a unique fingerprint.

Cite this