APIC — Brassica juncea

Summary

BJUB03G27530S (symbol APIC, also known as BjGST1 and BjERD11) on Indian mustard chromosome B03 encodes a glutathione S-transferase (GST) belonging to the phi class, as indicated by its GST_Phi_C and GST_C domains. The enzyme has glutathione transferase activity and binds quercitrin, camalexin, glutathione, cobalt, and copper, and it forms homodimers. This gene is associated with detoxification, glutathione metabolism, toxin breakdown, and responses to xenobiotic stimuli, herbicides, oxidative stress, hydrogen peroxide, cadmium, salicylate, auxin signaling, and bacterial and fungal defence. It is linked to dehydration, salt, cold, and wounding stress responses, as well as camalexin biosynthesis and resistance to Botrytis cinerea. The protein localises to the cytosol, stress granules, plant-type cell wall, vacuole, plasmodesmata, and mitochondria. Studies of related genes in other species connect the family to heat, oxidative, and copper stress tolerance.