Phosphorylation
| Allowed Value | Details | 
|---|---|
| (3-Aminopropyl)(5'-adenosyl)phosphono amidation | |
| (3R)-3-Hydroxybutyrylation | |
| 12-Hydroxyfarnesylation | |
| 12-Oxomyristoylation | |
| 12R-Hydroxymyristoylation | |
| 14-Hydroxy-10,13-dioxo-7-heptadecenoic acid | |
| 2,3-Dicarboxypropylation | |
| 2-Aminoadipylation | |
| 2-Aminoethylphosphorylation | |
| 2-Cholinephosphorylation | |
| 2-Hydroxyisobutyrylation | |
| 2-Oxo-5,5-dimethylhexanoylation | |
| 2-Oxobutanoic acid | |
| 3-Oxoalanine | |
| 3-Phenyllactic acid | |
| 4-Phosphopantetheine | |
| ADP-ribosylation | |
| ADP-riboxanation | |
| AMPylation | |
| Acetamidation | |
| Acetamidomethylation | |
| Acetylation | |
| Alanylation | |
| Allysine | |
| Amination | |
| Arachidoylation | |
| Archaeol | |
| Arginylation | |
| Arsenylation | |
| Asparaginylation | |
| Aspartylation | |
| Bacillithiolation | |
| Benzoylation | |
| Benzylation | |
| Beta-amino acid | |
| Beta-hydroxybutyrylation | |
| Beta-lysylation | |
| Beta-mercaptoethanol | |
| Biotinylation | |
| Bromination | |
| Butyrylation | |
| C-Mannosylation | |
| Carbamoylation | |
| Carboxyethylation | |
| Carboxylation | |
| Carboxymethylation | |
| Chlorination | |
| Cholesterylation | |
| Citrullination | |
| Crotonylation | |
| Cyanation | |
| Cysteinylation | |
| D-alanylation | |
| D-arginylation | |
| D-asparaginylation | |
| D-aspartylation | |
| D-cysteinylation | |
| D-glutaminylation | |
| D-glutamylation | |
| D-histidinylation | |
| D-isoleucylation | |
| D-lactate | |
| D-leucylation | |
| D-lysylation | |
| D-methionylation | |
| D-phenylalanylation | |
| D-prolylation | |
| D-serylation | |
| D-threoninylation | |
| D-tryptophanylation | |
| D-tyrosination | |
| D-valylation | |
| Deamidation | |
| Decanoylation | |
| Decarboxylation | |
| Dehydroamino acid | |
| Dehydrocoelenterazination | |
| Dehydrogenation | |
| Dehydroxylation | |
| Deoxidation | |
| Deoxyhypusine | |
| Diacylglycerol | |
| Dihydroxyacetonation | |
| Dimethylamination | |
| Diphosphorylation | |
| Diphthamide | |
| Dipyrromethane methylation | |
| Dopaminylation | |
| Ethylation | |
| Ethylsulfanylation | |
| Farnesylation | |
| Fluorination | |
| Formylation | |
| GMPylation | |
| Geranylgeranylation | |
| Glutaminylation | |
| Glutamylation | |
| Glutarylation | |
| Glutathionylation | |
| Glycerophosphorylation | |
| Glycerylphosphorylethanolamination | |
| Glycylation | |
| Heptanoylation | |
| Hexanoylation | |
| Histaminylation | |
| Histidinylation | |
| Hydrogenation | |
| Hydroperoxylation | |
| Hydroxyamination | |
| Hydroxyethylation | |
| Hydroxylation | |
| Hydroxymethylation | |
| Hydroxysulfanylation | |
| Hypusine | |
| Iodination | |
| Isoleucylation | |
| L-lactate | |
| Lactoylation | |
| Laurylation | |
| Leucylation | |
| Lipoylation | |
| Lysylation | |
| Malonylation | |
| Methacrylation | |
| Methionylation | |
| Methoxylation | |
| Methylamination | |
| Methylation | |
| Methylsulfanylation | |
| Methylsulfation | |
| Myristoylation | |
| N-Glycosylation | |
| N-methylcarbamoylation | |
| N-pyruvic acid 2-iminylation | |
| N6-benzoyllysine | |
| N6-isonicotinyllysine | |
| N6-methacryllysine | |
| Nitration | |
| Nitrosylation | |
| None | |
| Noradrenylation | |
| Norleucine | |
| Norvaline | |
| O-Glycosylation | |
| Octanoylation | |
| Oleoylation | |
| Ornithine | |
| Oxidation | |
| Palmitoleoylation | |
| Palmitoylation | |
| Pentadecanoylation | |
| Pentanoylation | |
| Phenylalanylation | |
| Phosphatidylethanolamine amidation | |
| Phosphoenolpyruvate | |
| Phosphorylation | |
| Prolylation | |
| Propionylation | |
| Pyridoxal phosphate | |
| Pyrrolidone carboxylic acid | |
| Pyruvic acid | |
| Retinoylation | |
| S-Glycosylation | |
| Selanylation | |
| Selenomethionine | |
| Serotonylation | |
| Serylation | |
| Stearoylation | |
| Stereoisomerisation | |
| Succinamide ring | |
| Succination | |
| Succinylation | |
| Sulfanylmethylation | |
| Sulfation | |
| Sulfhydration | |
| Tert-butylation | |
| Tert-butyloxycarbonylation | |
| Threoninylation | |
| Thyroxine | |
| Triiodothyronine | |
| Triphosphorylation | |
| Tryptophanylation | |
| Tyrosination | |
| UMPylation | |
| Valylation | |
| cGMPylation | 
| Allowed Value | Details | 
|---|---|
| (3-Aminopropyl)(5'-adenosyl)phosphono amidation | |
| (3R)-3-Hydroxybutyrylation | |
| 12-Hydroxyfarnesylation | |
| 12-Oxomyristoylation | |
| 12R-Hydroxymyristoylation | |
| 14-Hydroxy-10,13-dioxo-7-heptadecenoic acid | |
| 2,3-Dicarboxypropylation | |
| 2-Aminoadipylation | |
| 2-Aminoethylphosphorylation | |
| 2-Cholinephosphorylation | |
| 2-Hydroxyisobutyrylation | |
| 2-Oxo-5,5-dimethylhexanoylation | |
| 2-Oxobutanoic acid | |
| 3-Oxoalanine | |
| 3-Phenyllactic acid | |
| 4-Phosphopantetheine | |
| ADP-ribosylation | |
| ADP-riboxanation | |
| AMPylation | |
| Acetamidation | |
| Acetamidomethylation | |
| Acetylation | |
| Alanylation | |
| Allysine | |
| Amination | |
| Arachidoylation | |
| Archaeol | |
| Arginylation | |
| Arsenylation | |
| Asparaginylation | |
| Aspartylation | |
| Bacillithiolation | |
| Benzoylation | |
| Benzylation | |
| Beta-amino acid | |
| Beta-hydroxybutyrylation | |
| Beta-lysylation | |
| Beta-mercaptoethanol | |
| Biotinylation | |
| Bromination | |
| Butyrylation | |
| C-Mannosylation | |
| Carbamoylation | |
| Carboxyethylation | |
| Carboxylation | |
| Carboxymethylation | |
| Chlorination | |
| Cholesterylation | |
| Citrullination | |
| Crotonylation | |
| Cyanation | |
| Cysteinylation | |
| D-alanylation | |
| D-arginylation | |
| D-asparaginylation | |
| D-aspartylation | |
| D-cysteinylation | |
| D-glutaminylation | |
| D-glutamylation | |
| D-histidinylation | |
| D-isoleucylation | |
| D-lactate | |
| D-leucylation | |
| D-lysylation | |
| D-methionylation | |
| D-phenylalanylation | |
| D-prolylation | |
| D-serylation | |
| D-threoninylation | |
| D-tryptophanylation | |
| D-tyrosination | |
| D-valylation | |
| Deamidation | |
| Decanoylation | |
| Decarboxylation | |
| Dehydroamino acid | |
| Dehydrocoelenterazination | |
| Dehydrogenation | |
| Dehydroxylation | |
| Deoxidation | |
| Deoxyhypusine | |
| Diacylglycerol | |
| Dihydroxyacetonation | |
| Dimethylamination | |
| Diphosphorylation | |
| Diphthamide | |
| Dipyrromethane methylation | |
| Dopaminylation | |
| Ethylation | |
| Ethylsulfanylation | |
| Farnesylation | |
| Fluorination | |
| Formylation | |
| GMPylation | |
| Geranylgeranylation | |
| Glutaminylation | |
| Glutamylation | |
| Glutarylation | |
| Glutathionylation | |
| Glycerophosphorylation | |
| Glycerylphosphorylethanolamination | |
| Glycylation | |
| Heptanoylation | |
| Hexanoylation | |
| Histaminylation | |
| Histidinylation | |
| Hydrogenation | |
| Hydroperoxylation | |
| Hydroxyamination | |
| Hydroxyethylation | |
| Hydroxylation | |
| Hydroxymethylation | |
| Hydroxysulfanylation | |
| Hypusine | |
| Iodination | |
| Isoleucylation | |
| L-lactate | |
| Lactoylation | |
| Laurylation | |
| Leucylation | |
| Lipoylation | |
| Lysylation | |
| Malonylation | |
| Methacrylation | |
| Methionylation | |
| Methoxylation | |
| Methylamination | |
| Methylation | |
| Methylsulfanylation | |
| Methylsulfation | |
| Myristoylation | |
| N-Glycosylation | |
| N-methylcarbamoylation | |
| N-pyruvic acid 2-iminylation | |
| N6-benzoyllysine | |
| N6-isonicotinyllysine | |
| N6-methacryllysine | |
| Nitration | |
| Nitrosylation | |
| None | |
| Noradrenylation | |
| Norleucine | |
| Norvaline | |
| O-Glycosylation | |
| Octanoylation | |
| Oleoylation | |
| Ornithine | |
| Oxidation | |
| Palmitoleoylation | |
| Palmitoylation | |
| Pentadecanoylation | |
| Pentanoylation | |
| Phenylalanylation | |
| Phosphatidylethanolamine amidation | |
| Phosphoenolpyruvate | |
| Phosphorylation | |
| Prolylation | |
| Propionylation | |
| Pyridoxal phosphate | |
| Pyrrolidone carboxylic acid | |
| Pyruvic acid | |
| Retinoylation | |
| S-Glycosylation | |
| Selanylation | |
| Selenomethionine | |
| Serotonylation | |
| Serylation | |
| Stearoylation | |
| Stereoisomerisation | |
| Succinamide ring | |
| Succination | |
| Succinylation | |
| Sulfanylmethylation | |
| Sulfation | |
| Sulfhydration | |
| Tert-butylation | |
| Tert-butyloxycarbonylation | |
| Threoninylation | |
| Thyroxine | |
| Triiodothyronine | |
| Triphosphorylation | |
| Tryptophanylation | |
| Tyrosination | |
| UMPylation | |
| Valylation | |
| cGMPylation |