RF4 — Oryza sativa Indica Group

Summary

BGIOSGA031622 (symbol RF4, also known as OiRF4 or Rf1) on indica rice chromosome 10 encodes an uncharacterized protein containing a PPR repeat and a TPR-like helical domain. The product binds RNA, including pre-rRNA, single-stranded RNA, and mRNA, and is associated with zinc binding and identical protein binding. RF4 is associated with mitochondrial mRNA modification, mRNA stabilization, positive regulation of translation, and group II intron splicing, as well as chloroplast RNA processing. It localizes to mitochondria, chloroplast stroma, and cytoplasm. The gene is associated with anther dehiscence, syngamy, and cell growth. RF4 is associated with cytoplasmic male sterility and fertility restoration of CMS-WA, and is linked to pollen fertility and heterosis.