PPR10 — Zea mays

Summary

ZM00001EB274840, designated PPR10 on maize chromosome 6, encodes a pentatricopeptide repeat (PPR) protein with endonuclease activity and RNA-binding functions, including pre-rRNA, single-stranded RNA, and mRNA binding. The protein is associated with mitochondrial transcription termination, mitochondrial gene expression, RNA processing, and mitochondrial complex I assembly. It has been linked to chloroplast stroma and mitochondrial localisation, as well as to chlorophyll content and drought tolerance. Related genes in other species connect the PPR family to photochemical quenching. The gene is also associated with mRNA splicing, translation initiation, homologous recombination, and protein import, reflecting its broad associations with organellar RNA metabolism and gene expression.