ATP4 — Brassica juncea

Summary

BJUB07G18110S (symbol ATP4, also known as SVR7 or BjSVR7) on Indian mustard (Brassica juncea) chromosome B07 encodes a protein containing an Smr domain, a PPR repeat, and a TPR-like helical domain superfamily. The product binds pre-rRNA and mRNA, and is associated with chloroplast RNA processing, positive regulation of translation, chloroplast organization, and mRNA processing. It localizes to the chloroplast stroma. The gene has been connected to cytoplasmic male sterility, and studies of the SVR7 family link it to chloroplast biogenesis, chloroplast ribosomal RNA processing, chloroplast ATP synthase accumulation, and mRNA translation. Sequence similarity to related genes in other species further connects the family to chloroplast development traits.