Heavy metals are some of the strongest irreversible enzyme inhibitors — at the cell membrane or liver they can stop the activities of many protective enzyme systems. (puretyclinic.com)
Physiological Effects of Chitosan Coating on Wheat Growth and Activities of Protective Enzyme with Drought Tolerance (scirp.org)
Research teams from Karolinska Institutet and Uppsala University have jointly discovered that the usually protective enzyme FBW7 is commonly mutated and inactivated in childhood brain cancers causing tumors to spread and become more difficult to treat. (sciencedaily.com)