CAT2 — Arabidopsis thaliana

Summary

AT4G35090, designated CAT2 (catalase 2) in Arabidopsis thaliana on chromosome 4, encodes a catalase enzyme (EC 1.11.1.6). The gene is associated with detoxification of hydrogen peroxide, hydrogen peroxide metabolic process, regulation of hydrogen peroxide metabolism, regulation of glutathione anabolism, upregulation of glutathione anabolism, glutathione anabolism, polyamine breakdown, and cell cycle checkpoint. CAT2 is linked to traits including seed yield, biomass yield, photosynthetic rate, transpiration rate, germination rate, root length, leaf size, and responses to abiotic stresses including cold, drought, and oxidative stress. It is also associated with biotic stress responses, disease resistance, and cell death regulation. The catalase protein localizes to the peroxisomal lumen and has been associated with additional cellular compartments including the tonoplast, apoplast, and plasmodesmata.