CAT1 — Solanum tuberosum

Summary

StCAT1 (PGSC0003DMG400001570) on potato chromosome 2 encodes a catalase enzyme (EC 1.11.1.6) with a haem-binding site and core catalase domain, and is also annotated with nucleoside diphosphate kinase activity, protein kinase activity, DNA-binding transcription factor activity, and heme binding. The gene is associated with cellular response to hydrogen peroxide, cell redox homeostasis, regulation of programmed cell death, systemic acquired resistance via salicylic acid signaling, aerenchyma formation, photoperiodism, and responses to superoxide, oomycetes, and nitrogen or sulfate starvation. It localizes to the peroxisomal lumen, tonoplast, apoplast, plasmodesma, and stromule. Associations include leaf chlorosis, net photosynthetic rate, biomass yield, seed yield, plant height, root thickness, chlorophyll content, oxidative stress response, disease tolerance, low temperature stress response, and vegetative growth time. Studies of related genes in other species link the catalase family to drought tolerance, salt tolerance, and hypersensitive cell death.