ATF1 — Cucumis melo

Summary

MELO3C031393.2, also known as CmATF1, encodes a protein with thioredoxin and pyridoxal phosphate-dependent transferase domains, annotated with sphinganine-1-phosphate aldolase, protein-disulfide reductase, peroxidase, and enzyme activator/inhibitor activities, as well as salicylic acid binding. In melon, this gene is associated with sphingolipid breakdown, regulation of carbohydrate metabolism, cell redox homeostasis, and responses to cold and light intensity. Its product localizes to the chloroplast thylakoid, stroma, envelope, stromule, ER membrane, apoplast, and cytosol. Associations link CmATF1 to plant growth, photosynthetic electron transport rate, photosynthesis, antioxidant response, altered redox behavior under high light/dark conditions, and reduced fresh weight and photosynthetic pigment content. Related genes in other species connect the family to carbon dioxide fixation, photosynthetic efficiency, and herbicide sensitivity.