PRP1 — Capsicum annuum

Summary

CaPRP1 (T459_23085) on pepper chromosome 9 encodes a glutathione S-transferase (GST) with glutathione transferase activity (EC 2.5.1.18), belonging to the Tau-class GST family. The gene is associated with glutathione metabolism, hormone metabolism (including responses to auxin, gibberellin, abscisic acid, and cytokinin), calcium signaling, and chromatin modeling. It is linked to immune response, defense response, cell death, virus-induced PTGS, and response to heat and metal. Localization evidence places the product in the cytoplasm. CaPRP1 is also associated with chilling stress response, net photosynthetic rate, photosynthetic rate, and chlorophyll content. Related genes in other species, such as auxin-induced proteins and glutathione transferases, further support the family's involvement in stress and hormone responses.