Term Name:	allergen
Synonyms:	alergeno, allergene, allergenic agent
Definition:	A chemical compound, or part thereof, which causes the onset of an allergic reaction by interacting with any of the molecular pathways involved in an allergy.
Ontology:	ChEBI [CHEBI:50904] ( EBI )

Relationships

is a type of:	aetiopathogenetic role
has subtype:	carbohydrate allergen ceramide allergen drug allergen peptide allergen
inverse has_role:	(2-sulfonatophenyl)azo group (2R)-2-{(1R)-1-hydroxy-15-[2-(20-methoxy-21-methylnonatriacontyl)cyclopropyl]pentadecyl}hexacosanoic acid (3-sulfonatophenyl)azo group (4-sulfonatophenyl)azo group (4R)-limonene 1-hydroperoxide (4R)-limonene 2-hydroperoxide (5R)-5-isopropenyl-1,2-dimethylcyclohexane 1-hydroperoxide (5R)-5-isopropenyl-2-methylcyclohexane 1-hydroperoxide (5R)-5-isopropyl-2-methyl-2-cyclohexen-1-one (8Z,11Z)-urushiol III 1,2-bis(diphenylphosphino)ethane 1,3-diphenylguanidine 1,4-phenylenediamine 1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-enone 1-chloro-2,4,6-trinitrobenzene 1-chloro-2,4-dinitrobenzene 1-fluoro-2,4-dinitrobenzene 1-O-(alpha-D-galactosyl)-N-hexacosanoylphytosphingosine 2,4,6-trinitrophenyl group 2,4-dinitrophenol 2,4-dinitrophenyl group 2,5,5-trimethyl-1,3-thiazolidine-4-carboxylic acid 2,5-diaminotoluene sulfate 2,5-dimethyl-p-phenylenediamine 2-bromo-2-(bromomethyl)pentanedinitrile 2-hydroxyethyl methacrylate 2-methyl-1,4-phenylenediamine 2-O-alpha-D-mannosyl-1-O-{1-O-[(10S)-10-methyloctadecanoyl]-2-O-palmitoyl-sn-glycero-3-phosphonato}-5-O-palmitoyl-6-O-(6-O-palmitoyl-alpha-D-mannosyl)-1D-myo-inositol 2-O-alpha-D-mannosyl-1-O-{1-O-[(10S)-10-methyloctadecanoyl]-2-O-palmitoyl-sn-glycero-3-phosphono}-5-O-palmitoyl-6-O-(6-O-palmitoyl-alpha-D-mannosyl)-1D-myo-inositol 2-O-palmitoyl-2'-O-sulfo-3-O-[(2E,4S,6S,8S)-2,4,6,8-tetramethyltriacont-2-enoyl]-alpha,alpha-trehalose 2-thienylacetic acid 2-thiobarbituric acid 3'-hydroxy-4'-methoxydiclofenac 3'-hydroxydiclofenac 3,4,5-trimethoxycinnamic acid 3,4-dimethoxybenzoic acid 3,4-dimethoxyphenylethylamine 3-(leucinocarbonyl)phenylazo group 3-pentadecylcatechol 4'-hydroxydiclofenac 4,4'-(ethyl-2-nitropropane-1,3-diyl)bismorpholine 4,4'-azodibenzenearsonic acid 4,4'-diaminodiphenylmethane 4,5,6-trimethyl-3-pentadecylcatechol 4-(2-hydroxy-5-methylphenylazo)acetanilide 4-(2-nitrobutyl)morpholine 4-(4-nitrophenylazo)aniline 4-(ethoxymethylene)-2-phenyloxazol-5-one 4-(phenylazo)aniline 4-aminobenzenesulfonic acid 4-aminobenzoic acid 4-aminobutyl alpha-L-fucopyranoside 4-aminophenol 4-chlorobenzoyl group 4-isopropyl-1-methylcyclohexane 1-hydroperoxide 4-methylaminophenol 4-nitrobenzyl bromide 4-nitrosobenzenesulfonamide 4-sulfanilamidobenzoic acid 4-tert-butylphenol 4-tolyl isocyanate 5,6-dimethyl-3-pentadecylcatechol 5-(dimethylamino)-N-(4-nitrosobenzyl)naphthalene-1-sulfonamide 5-[2-(2-oxoethoxy)ethoxy]-diclofenac 5-hydroxydiclofenac 6-aminopenicillanic acid 6-methylcoumarin 6-tuliposide A alpha-D-fucose alpha-D-Gal-(1->3)-beta-D-Gal-(1->4)-D-GlcNAc alpha-L-arabinofuranose alpha-L-Fucp-(1->3)-[alpha-D-Manp-(1->3)-[alpha-D-Manp-(1->6)]-beta-D-Manp-(1->4)-beta-D-GlcpNAc-(1->4)]-D-GlcpNAc ammonium persulfate ammonium thioglycolate amoxicillin diketopiperazine amoxicilloic acid anthrarobin artemorin aztreonyl group Bandrowski's base barbituric acid benzocaine benzylamine benzylpenicillenate benzylpenicillenic acid benzylpenicilloyl-benzylamine benzylpenilloaldehyde beryllium sulfate beta-aminoarteether maleate beta-lactam antibiotic allergen Bismark brown Y carbamazepine-10,11-epoxide carvone chloramine T choline cobalt chloride hexahydrate cobalt dichloride cocamidopropyl betaine cyclohexyl isocyanate D-mannitol deacetyllaurenobiolide dehydroabietic acid dibenzothiazol-2-yl disulfide dicyclohexylmethane-4,4'-diisocyanate diisocyanate diphenylmethane monoisocyanate diphenylmethane-4,4'-diisocyanate Disperse Blue 124 Disperse Red 1 ethyl isothiocyanate ethylene glycol dimethacrylate ethylenediamine dihydrochloride eugenol fluazinam formaldehyde framycetin geraniol glyceryl monothioglycolate glyoxal hexahydrophthalic anhydride hexamethylene diisocyanate hexyl isocyanate hydroxycitronellal isoeugenol lamivudine laurenobiolide linalool 6-hydroperoxide linalool 7-hydroperoxide linalool hydroperoxide lissamine fast yellow lissamine fast yellow (acid form) litreol loracarbef anion maleic anhydride metal allergen metal cation allergen methyl isocyanate methyl methacrylate methylhexahydrophthalic anhydride methyltetrahydrophthalic anhydride monobenzone N(4)-[alpha-L-fucosyl-(1->3)-N-acetyl-4-O-glycosyl-D-glucosaminyl]-L-asparagine residue N,N'-dibutylthiourea N,N'-diethylthiourea N,N'-diphenylthiourea N,S-isopropylidene-D-penicillamine N-(p-hydroxyphenyl)glycine n-butyl isocyanate N-isopropyl-N'-phenyl-p-phenylenediamine N-phenylglycine neomycin sulfate nickel sulfate nitrososulfadiazine nitrososulfamethoxazole nitrososulfapyridine oxirane p-aminodiphenylamine patent blue V penicillin penicillin allergen penicilloyl group allergen phenoxyacetic acid phenyl isocyanate phenyl isothiocyanate phenylacetic acid phosphocholine phthalic anhydride phthalyl group potassium dichromate primin propane-1,2-diol pyridine-2-thiol pyrimidine-2-thiol quaternium-15 resorcinol monobenzoate sodium aurothiomalate sodium aurothiosulfate sodium hydrogensulfite SQ 26,992 squaric acid dibutyl ester sulfamethoxazole hydroxylamine sulfapyridine hydroxylamine tetrachlorophthalic anhydride tixocortol pivalate toluene 2,4-diisocyanate toluene 2,6-diisocyanate toluene meta-diisocyanate triforine trimellitic anhydride tulipinolide tylosin uracil xylitol