PDI — Cucumis sativus

Summary

CsPDI (CSA_6G383520) on cucumber chromosome 6 encodes a protein disulfide isomerase with thioredoxin domains, an enzyme (EC 5.3.4.1) that catalyzes disulfide bond formation and exhibits cysteine-type peptidase activity, protein phosphorylated amino acid binding, ATP binding, and protein binding. The gene is associated with protein folding in the endoplasmic reticulum, ER stress response, detoxification, systemic acquired resistance, and cellular response to drought and salt. It is linked to ER body organization, endosperm development, regulation of programmed cell death, polyamine and carbohydrate metabolism, and homeostasis. Localization evidence connects the product to the ER lumen, thylakoid, vacuole, and secretory vesicles. The gene is associated with traits including plant height, shoot axis branching, leaf and root morphology, flowering time, and oxidative stress response. Related genes in other species link the family to photoinhibition resistance and D1 protein synthesis.