Pentatricopeptide repeat (PPR) proteins, one of the largest families of RNA-binding proteins in higher plants, play essential roles in the post-transcriptional regulation of RNA metabolism in organelles.
First-pass extracted concept
PPR proteins
Candidate: concept label1 source documents4 linked claims
Live refresh every 5sNext refresh in 5s
Aliases
Pentatricopeptide repeat proteins, PPR proteins
Evidence Snippets
Supporting Sources
Linked Claims
PPR proteins play essential roles in post-transcriptional regulation of organellar RNA metabolism in higher plants.
Quoted textsource-backed
Pentatricopeptide repeat (PPR) proteins, one of the largest families of RNA-binding proteins in higher plants, play essential roles in the post-transcriptional regulation of RNA metabolism in organelles.
PPR proteins participate in RNA editing, intron splicing, RNA stabilization, cleavage, and translation in plant organelles.
Quoted textsource-backed
PPR proteins are predominantly localized in mitochondria and/or chloroplasts, and participate in various post-transcriptional processes, including RNA editing (C-to-U conversion), intron splicing, RNA stabilization, cleavage, and translation.
Stress-related functions of PPR proteins are discussed with emphasis on mechanisms involving reactive oxygen species homeostasis and organelle-to-nucleus retrograde signaling.
Quoted textsource-backed
with emphasis on mechanisms involving reactive oxygen species homeostasis and organelle-to-nucleus retrograde signaling
Recent studies have revealed critical roles for PPR proteins in plant responses to biotic and abiotic stresses.
Quoted textsource-backed
recent studies have revealed their critical roles in plant's response to biotic and abiotic stresses