CAT1 — Solanum lycopersicum

Summary

SlCAT2 (SOLYC12G094620.3, symbol CAT1) on tomato chromosome 12 encodes a catalase enzyme with catalase activity, heme binding, and metal binding, and belongs to the catalase core and haem-binding site families. The protein localises to the peroxisomal lumen, cytosol, plasmalemma, and nucleus. SlCAT2 is associated with diverse biological processes including denitrification, intrinsic apoptotic pathway, anti-inflammatory response, regulation of sodium transport, methanal metabolism, and upregulation of glutathione anabolism. It is linked to numerous agronomic traits such as fruit fresh weight, fruit volume, harvest index, seedling height, leaf nitrogen content, specific leaf area, cell membrane stability, chilling injury tolerance, and osmotic adjustment capacity. Studies of related genes in other species connect the family to chilling stress response, fruit ripening, salt stress tolerance, and oxidative stress response.