Protein expression Protein modifications true EDAM does not describe all possible protein modifications. For fine-grained annotation of protein modification use the Gene Ontology (children of concept GO:0006464) and/or the Protein Modifications ontology (children of concept MOD:00000) Post-translation modifications Protein chemical modifications Protein_modifications Protein post-translational modifications MOD:00000 beta12orEarlier Protein chemical modifications, e.g. post-translational modifications. PTMs Protein post-translational modification GO:0006464 Post-translational modifications