RPOB — Oryza sativa Japonica

Summary

RPOB (rpoB) on rice chromosome 5D encodes a DNA-directed RNA polymerase subunit 2 hybrid-binding domain-containing protein with DNA-directed RNA polymerase activity, DNA binding, mRNA binding, and protein binding. The gene is associated with plastid gene expression, DNA-templated transcription elongation, mitochondrial transcription, and fermentation. It localizes to the chloroplast nucleoid, plastid, and RNA polymerase complexes. RPOB is associated with seed development, regulation of seed size, reproductive structure development, and growth processes. Associations with agronomic traits include heading time, anthesis time, grain length, grain weight, seed weight, seed germination, drought tolerance, and heterosis. Studies of related genes in other species link the family to grain yield and grain texture.