Definition: Any of various enzymatically catalyzed post-translational modifications of PEPTIDES or PROTEINS in the cell of origin. These modifications include carboxylation; HYDROXYLATION; ACETYLATION; PHOSPHORYLATION; METHYLATION; GLYCOSYLATION; ubiquitination; oxidation; proteolysis; and crosslinking and result in changes in molecular weight and electrophoretic motility.
Other names Protein Modification, Post-Translational; Post-Translational Protein Modification; Amino Acid Modification, Post-Translational; Protein Modifications, Post-Translational; Protein Modification, Post Translational; Processing, Posttranslational Protein; Processing, Post-Translational Protein; Posttranslational Modification; Post-Translational Protein Modifications; Post-Translational Modification; Post Translational Protein Processing; Post Translational Protein Modification; Post Translational Modifications; Post Translational Amino Acid Modification; Modifications, Posttranslational; Modifications, Post-Translational Protein; Modifications, Post-Translational; Modification, Posttranslational; Modification, Post-Translational Protein; Modification, Post-Translational