CAT — Phaseolus vulgaris

Summary

PHAVU_009G011100, designated PvCAT, encodes a catalase family protein on chromosome 9 of French bean (Phaseolus vulgaris). The product contains multiple catalase domains and has been annotated with heme binding, protein kinase activity, nucleoside diphosphate kinase activity, and DNA-binding transcription factor activity. PvCAT is associated with cellular oxidant detoxification, response to hydrogen peroxide and superoxide, the ascorbate-glutathione cycle, polyamine and proline metabolism, and protein-peroxisome targeting. It localizes to the peroxisomal lumen, chloroplast envelope, tonoplast, and apoplast. The gene is linked to numerous agronomic traits including seed yield, biomass yield, leaf weight, root dry weight, germination rate, photosynthetic rate, water use efficiency, chlorophyll content, cell membrane stability, and responses to abiotic and biotic stress. Studies of related genes in other species connect it to catalase activity, peroxisomal protein import, disease resistance, and organ size.