Hydrolysis from the imine derives N-carbamoylputrescine adopted with hydrolysis in the urea to variety putrescine. The individual pathways of converting ornithine to putrescine in crops and animals have converged. A SAM-dependent N-methylation of putrescine gives the N-methylputrescine product, which then undergoes oxidative deamination because of the action of diamine oxidase https://neilk641cdc0.theisblog.com/profile