Protein Modification Ontology (MOD)

Name: Protein Modification Ontology (MOD)
Published: 2026-11-13T13:50:45.374984Z

Selected English labels and exact synonyms from the Protein Modification Ontology (MOD), retrieved 2026-11-07, with source identifiers and spelling preserved. Licensed CC BY 4.0; full attribution is listed under Sources. Under semantic review; not endorsed by the ontology's maintainers.

Curator: Oliver Bennett

Languages shown reflect this page; source translations may cover only some concepts.

English
complex glycosylationUnrated
(81)Br labeled 2'-bromophenylalanineUnrated
(2S)-2-amino-4,5-dihydroxy-4-(hydroxymethyl)pentanoic acidUnrated (2S)-4,5,5'-trihydroxyleucineUnrated 4,5,5'-trihydroxyleucineUnrated gamma,delta,delta'-trihydroxyleucineUnrated MOD_RES 4,5,4'-trihydroxyleucineUnrated
S-acylated residueUnrated SAcylResUnrated
L-lysine removalUnrated
(2R)-2-amino-3-([(2S)-2-amino-3-(1H-indol-3-yl)propanoyl]sulfanyl)propanoic acidUnrated CROSSLNK Tryptophanyl cysteine thioester (Cys-Trp)Unrated S-[2-amino-3-(1H-indol-3-yl)propanoyl]cysteineUnrated S-(L-tryptophanyl)-L-cysteineUnrated tryptophan cysteine thioesterUnrated XLNK1TrpSCysUnrated
isotope tagged reagent O-acylated residueUnrated
O-heptosyl-L-threonineUnrated
(2S)-3-(4-hydroxyphenyl)-2-(methylamino)propanoic acidUnrated MOD_RES N-methyltyrosineUnrated NMe1TyrUnrated N-methylated L-tyrosineUnrated N-methyl-L-tyrosineUnrated N-methyltyrosineUnrated N-methyl TyrosinylUnrated
CARBOHYD O-linked (Man1P) serineUnrated O3-(D-mannose-1-phosphoryl)-L-serineUnrated O3-L-serine alpha-D-mannopyranose 1-phosphodiesterUnrated O-[alpha-D-mannopyranosyloxy(hydroxy)phosphoryl]-L-serineUnrated O-(alpha-D-mannosyl-1-phosphoryl)-L-serineUnrated O-(D-mannose-1-phosphoryl)-L-serineUnrated O-(phosphoglycosyl-D-mannose-1-phosphoryl)-L-serineUnrated
keratan sulfate D-glucuronosyl-D-galactosyl-D-galactosyl-D-xylosyl-L-threonineUnrated keratosulfateUnrated poly[beta-1,4-(2-acetamido-2-deoxy-6-sulfate D-glucosyl)-beta-1,3-D-galactosyl]-beta-1,4-D-glucopyranuronosyl-beta-1,3-D-galactosyl-beta-1,3-D-galactosyl-beta-1,4-D-xylosyl-beta-1,3-L-threonineUnrated
2-aminopropionic acidUnrated 2-azanylpropanoic acidUnrated (2S)-2-aminopropanoic acidUnrated AlaUnrated alpha-alanineUnrated alpha-aminopropionic acidUnrated L-alanineUnrated L-alanine residueUnrated
pyrrolidione ring crosslinked residuesUnrated
AcLeuUnrated N-acetyl-L-leucineUnrated
thioether crosslinked residuesUnrated
(2R,3R)-3-[(1R)-1-(((2R)-2-amino-2-carboxy)ethylsulfanyl)ethyl]-18-ethyl-1,2,3,19,21,22,24-heptahydro-2,7,13,17-tetramethyl-1,19-dioxo-(21H,22H,24H)-bilin-8,12-dipropanoic acidUnrated (2R,3R)-3-[(1R)-1-(((2R)-2-amino-2-carboxy)ethylsulfanyl)ethyl]-8,12-bis(2-carboxyethyl)-18-ethyl-2,7,13,17-tetramethyl-1,2,3,19,21,22,24-heptahydrobilin-1,19(21H,22H,24H)-dioneUnrated BINDING Phycocyanobilin chromophore (covalent; via 1 link)Unrated PCBUnrated phycobilin cysteineUnrated phycocyanobilin cysteine adductUnrated S-phycocyanobilin-L-cysteineUnrated S-Phycocyanobilin (on Cysteine)Unrated
arg2ornUnrated L-ornithine (Arg)Unrated Ornithine (from Arginine)Unrated OrnithylUnrated
I3ResUnrated triiodinated residueUnrated triiodinationyUnrated
(2S,4R)-4-(beta-D-galactopyranosyloxy)pyrrolidine-2-carboxylic acidUnrated 4-(beta-D-galactopyranosyloxy)prolineUnrated 4-(galactosyloxy)prolineUnrated beta-galactopyranosyl-4-hydroxyprolineUnrated CARBOHYD O-linked (Gal) hydroxyprolineUnrated O4-galactosyl-L-hydroxyprolineUnrated O4-glycosyl-hydroxyprolineUnrated
2-amino-5-(4-methoxyphenyl)-5-oxopentanoic acid (Glu)Unrated anisole adducted glutamylUnrated
(4-methylpiperazin-1-yl)acetylUnrated iTRAQ8plex-117 reporter+balance reagent N'-acylated histidineUnrated
hexakis-L-cysteinyl hexairon hexasulfideUnrated hexa-mu3-sulfido-hexakis(cysteinato-kappaS)-hexaironUnrated hexa-mu3-sulfido-hexakis(S-cysteinyliron)Unrated prismane iron-sulfur cofactorUnrated
CDGSH domain iron-sulfur clusterUnrated di-mu-sulfido(bis-S-cysteinyliron)(S-cysteinyl-N3'-histidinoiron)Unrated METAL Iron-sulfur (2Fe-2S)Unrated METAL Iron-sulfur (2Fe-2S); via pros nitrogenUnrated tris-L-cysteinyl L-histidino diiron disulfideUnrated
(2S,3R)-2-amino-3-[(aminoacetyl)oxy]butanoic acidUnrated CROSSLNK Glycyl threonine ester (Gly-Thr) (interchain with T-...)Unrated CROSSLNK Glycyl threonine ester (Thr-Gly) (interchain with G-...)Unrated O3-(2-aminoacetyl)threonineUnrated O-(glycyl)-L-threonineUnrated O-glycyl-L-threonineUnrated threonine glycinate esterUnrated
4-methyl-1-methylidenepiperazin-1-iumUnrated iTRAQ8plex-119 reporter fragmentUnrated
(2R)-2-amino-3-nitrososulfanyl-propanoic acidUnrated L-cysteine nitrite esterUnrated MOD_RES S-nitrosocysteineUnrated S-nitrosocysteineUnrated S-nitrosyl-L-cysteineUnrated SNOCysUnrated
S-12-hydroxyfarnesyl-L-cysteine methyl esterUnrated S12HyFarnOMeCysUnrated
ADPRib1ResUnrated ADP-rybosylation (from NAD)Unrated monoadenosine diphosphoribosyl (ADP-ribosyl) modified residueUnrated
3-[(2,6-dimethylpiperidin-1-yl)acetyl]amino)propanoylUnrated TMT6plex-130 reporter+balance reagent O3-acylated threonineUnrated
MeCysUnrated methylated cysteineUnrated
butanoylated residueUnrated ButResUnrated butyrylationUnrated
(2S)-2-amino-6-([(5S)-5-amino-5-carboxypentylidene]amino)hexanoic acidUnrated 6-(N6-L-didehydrolysino)-L-norleucineUnrated CROSSLNK Dehydrolysinonorleucine (Lys-Lys)Unrated dehydrolysinorleucine [misspelling]Unrated dehydrolysylnorleucineUnrated didehydrolysinonorleucineUnrated L-dehydrolysinonorleucineUnrated N6-[(5S)-5-amino-5-carboxypentylidene]-L-lysineUnrated XLNK6NleN6LysUnrated
AcSerUnrated monoacetylated L-serineUnrated
Hex1HexNAc1NeuAc2 O-glycosylated serineUnrated
2-amino-3-oxopropionic acidUnrated L-3-oxoalanineUnrated L-3-oxoalanine (Cys)Unrated L-aminomalonaldehydic acidUnrated L-amino-malonic acid semialdehydeUnrated MOD_RES 3-oxoalanine (Cys)Unrated Oxala(Cys)Unrated (S)-2-amino-3-oxopropanoic acidUnrated
2-oxopropanoic acidUnrated MOD_RES Pyruvic acid (Tyr)Unrated pyruvic acidUnrated pyruvic acid (Tyr)Unrated
1x(18)O labeled deamidated L-asparagineUnrated oxy18Unrated
2-acetamido-5-guanidinopentanoic acidUnrated 2-acetylamino-5-guanidinopentanoic acidUnrated AcArgUnrated acetylarginineUnrated alpha-acetylamino-delta-guanidinovaleric acidUnrated MOD_RES N2-acetylarginineUnrated N2-acetylated L-arginineUnrated N2-acetyl-L-arginineUnrated N(alpha)-acetylarginineUnrated (S)-2-acetamido-5-carbamimidamidopentanoic acidUnrated
PbfUnrated pentamethyldihydrobenzofuransulfonylUnrated
(4R,5aR,11aR)-8-amino-2-[(2R)-2-amino-2-carboxyethyl]sulfanyl-4,5a,6,9,10,11,11a-heptahydro-4-(phosphoric acid)methyl-2,2,10-trioxo-pteridino[6,7-5,6]pyrano[3,4-4,3][1,2,5]molybdadithioleneUnrated cysteinyl Mo-molybdopterinUnrated cysteinyl Mo-pterinUnrated L-cysteinyl molybdopterinUnrated METAL Molybdenum-pterinUnrated molybdoenzyme molybdenum cofactorUnrated MoPterCysUnrated
dPhosOPhosSerUnrated O-phospho-L-serine with neutral loss of phosphateUnrated
oxazole/oxazoline ring crosslinked residuesUnrated
N6-cervonoyl-L-lysineUnrated
2-formamidopropanoic acidUnrated 2-formamidopropionic acidUnrated (2S)-2-(formylamino)propanoic acidUnrated N-formyl-L-alanineUnrated
3-[(2,6-dimethylpiperidin-1-yl)acetyl]amino)propanoylUnrated TMT6plex-130 reporter+balance reagent O3-acylated serineUnrated
2-[(4S)-4-amino-4-carboxybutyl]-1-[(5S)-5-amino-5-carboxypentyl]-3,5-bis[(3S)-3-amino-3-carboxypropyl]pyridiniumUnrated 6-[2-(4-amino-4-carboxybutyl)-3,5-bis(3-amino-3-carboxypropyl)pyridinio]norleucineUnrated isodesmosineUnrated
4-methyl-1-methylidenepiperazin-1-iumUnrated iTRAQ8plex-121 reporter fragmentUnrated
Hex1HexNAc2 N4-glycosylated asparagineUnrated
AcTrpUnrated N2-acetyl-L-tryptophanUnrated
18-ethenyl-3-[1-(2-amino-2-carboxyethylsulfanyl)ethyl]-2,3,15,16-dihydro-2,7,13,17-tetramethyl-1,19-dioxo-(21H,22H,24H)-bilin-8,12-dipropanoic acidUnrated (2S,3R,16R)-18-ethenyl-3-[(1R)-1-([(R)-2-amino-2-carboxyethyl]sulfanyl)ethyl]-8,12-bis(2-carboxyethyl)-2,7,13,17-tetramethyl-4,5,15,16-tetrahydrobiline-1,19(21H,22H,24H)-dioneUnrated BINDING Phycourobilin chromophore (covalent; via 1 link)Unrated phycourobilin cysteine adductUnrated PUBUnrated PUBCysUnrated S-phycourobilin-L-cysteineUnrated
2-[(2S)-pyrrolidin-2-yl]-1,3-thiazole-4-carboxylic acidUnrated CROSSLNK Thiazole-4-carboxylic acid (Pro-Cys)Unrated L-proline thiazole-4-carboxylic acidUnrated
glycosylsphingolipidinositolated residueUnrated GSIResUnrated
ModAspUnrated modified L-aspartic acid residueUnrated
2-amino-6-carbamic hexanoic acidUnrated (2S)-2-amino-6-(carboxyamino)hexanoic acidUnrated lysine NZ-carboxylic acidUnrated MOD_RES N6-carboxylysineUnrated N6-carboxy-L-lysineUnrated N6-carboxylysineUnrated N6CbxLysUnrated
2-acetylamino-3-methylbutanoic acidUnrated 2-acetylazanyl-3-methylbutanoic acidUnrated (2S)-2-acetamido-3-methylbutanoic acidUnrated AcValUnrated MOD_RES N-acetylvalineUnrated N-acetylated L-valineUnrated N-acetyl-L-valineUnrated N-acetylvalineUnrated
3-[(2,6-dimethylpiperidin-1-yl)acetyl]amino)propanoylUnrated TMT6plex-126 reporter+balance reagent N6-acylated lysineUnrated
uncategorized crosslinked residuesUnrated
(2S)-2-amino-6-(formylamino)hexanoic acidUnrated epsilon-formyllysineUnrated formylkUnrated MOD_RES N6-formyllysineUnrated N6FoLysUnrated N6-formylated L-lysineUnrated N6-formyl-L-lysineUnrated N(zeta)-formyllysineUnrated
metal or metal cluster coordinated L-lysine residueUnrated
AcHisUnrated N2-acetyl-L-histidineUnrated
6x(13)C labeled 4-sulfophenyl isothiocyanate derivatized residueUnrated
crosslinked residues with loss of waterUnrated
EAPTA d5Unrated
molybdenum containing modified residueUnrated MoResUnrated
cysTMT6plex-zero reporter+balance reagent cysteine disulfideUnrated S-(2-{3-[2-(2,6-dimethylpiperidin-1-yl)acetamido]propanamido}ethyl)sulfanylUnrated
4-thialysineUnrated L-cysteine aziridine adductUnrated S-(2-aminoethyl)-L-cysteineUnrated S-aminoethylcysteine (Cys)Unrated
calcium containing modified residueUnrated CaResUnrated
hexakis-L-cysteinyl triiron trisulfideUnrated tri-mu-sulfido-hexakiscysteinato-1kappa(2)S,2kappa(2)S,3kappa(2)S-triironUnrated tri-mu-sulfidotris(biscysteinato-kappaS-iron)Unrated
ACT_SITE O-(5'-phospho-DNA)-tyrosine intermediateUnrated MOD_RES O-(5'-phospho-DNA)-tyrosineUnrated O4'-L-tyrosine 5'-DNA phosphodiesterUnrated O4'-(phospho-5'-DNA)-L-tyrosineUnrated (S)-2-amino-3-[4-(5'-deoxyribonucleic acid phosphonoxy)phenyl]propanoic acidUnrated
halogenated tryptophanUnrated HalTrpUnrated
(2S)-2-amino-N4-methylbutanediamic acidUnrated beta-aspartyl methylamideUnrated methylnUnrated MOD_RES N4-methylasparagineUnrated N4Me1AsnUnrated N4-methylated L-asparagineUnrated N4-methyl-L-asparagineUnrated N(gamma)-methylasparagineUnrated N-methylasparagineUnrated