@misc{10481/63287, year = {2020}, month = {5}, url = {http://hdl.handle.net/10481/63287}, abstract = {Catalase is a powerful antioxidant metalloenzyme located in peroxisomes which also plays a central role in signaling processes under physiological and adverse situations. Whereas animals contain a single catalase gene, in plants this enzyme is encoded by a multigene family providing multiple isoenzymes whose number varies depending on the species, and their expression is regulated according to their tissue/organ distribution and the environmental conditions. This enzyme can be modulated by reactive oxygen and nitrogen species (ROS/RNS) as well as by hydrogen sulfide (H2S). Catalase is the major protein undergoing Tyr-nitration [post-translational modification (PTM) promoted by RNS] during fruit ripening, but the enzyme from diverse sources is also susceptible to undergo other activity-modifying PTMs. Data on S-nitrosation and persulfidation of catalase from different plant origins are given and compared here with results from obese children where S-nitrosation of catalase occurs. The cysteine residues prone to be S-nitrosated in catalase from plants and from bovine liver have been identified. These evidences assign to peroxisomes a crucial statement in the signaling crossroads among relevant molecules (NO and H2S), since catalase is allocated in these organelles. This review depicts a scenario where the regulation of catalase through PTMs, especially S-nitrosation and persulfidation, is highlighted.}, organization = {European Union (EU)}, organization = {Spanish Government AGL2015-65104-P PID2019103924GB-I00}, organization = {Plan Andaluz de Investigacion, Desarrollo e Innovacion P18-FR-1359}, organization = {Junta de Andalucia BIO 192}, organization = {Health Strategy Action (Spain's National Plan for Science and Technology Research, Development and Innovation) PI18-01316}, publisher = {Elsevier}, keywords = {Docking}, keywords = {Nitration}, keywords = {S-nitrosation}, keywords = {Persulfidation}, keywords = {Post-translational modification}, keywords = {Signaling}, title = {Plant catalases as NO and H2S targets}, doi = {10.1016/j.redox.2020.101525}, author = {Palma, José Manuel and López Jaramillo, Francisco Javier and González Gordo, Salvador and Corpas, Francisco J.}, }