RR12 — Arabidopsis thaliana

Summary

AT2G25180, designated ARR12 (also known as RR12), encodes a type-B Arabidopsis response regulator with histidine phosphotransfer kinase activity, phosphorelay response regulator activity, and DNA-binding transcription factor activity. This nuclear-localized protein is associated with numerous developmental and physiological processes, including positive regulation of seed maturation, post-embryonic root development, leaf formation, photosynthetic electron transport, and cellular responses to cytokinin, glucose, and starvation. It is linked to traits such as root length, root hair length, hypocotyl length, anthocyanin content, lignin content, sodium content, seed dormancy, leaf senescence, stomatal opening and closure, chloroplast development, callus induction, female sterility, and UV light sensitivity. The gene also shows connections to salt tolerance, ABA response, photoperiod stress tolerance, and cytokinin sensitivity.