Protein post-translational modifications (PTMs) broadly refer to covalent processing events that occur during or after translation, including proteolytic cleavage and the covalent addition or removal of chemical groups, small molecules, or protein modifiers, thereby regulating protein activity, ...
Methionine (Met) is a sulfur-containing essential amino acid and a key node in protein synthesis, one-carbon metabolism and methylation networks, and redox homeostasis maintained via the transsulfuration pathway.