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Ontology Browser
Term:
Parent Terms Term With Siblings Child Terms
(+)-(1S,2S)-norcoronamic acid 
(1S)-isoindoline-1-carboxylic acid 
(2R*,6S*)-2,6-diamino-3xi-hydroxyheptanedioic acid 
(3S)-3-hydroxy-L-ornithine 
(E)-2-Butenyl-4-methyl-threonine 
(R)-AMAA 
(S)-ACPA 
(S)-alpha-methyl-4-carboxyphenylglycine  
(S)-AMPA  
(S)-F-Willardiine 
1,4-butanediammonium +  
1-aminocyclopentanecarboxylic acid 
1-aminocyclopropanecarboxylic acid +  
1-methylhistidine 
1-methyltryptophan  
1-propanoylproline 
2'-deoxyadenosine 5'-monophosphate +  
2'-deoxyadenosine 5'-monophosphate(2-) +  
2,2-dialkylglycine +  
2,4,6-trimethylphenylalanine +  
2,4-diaminobutyric acid +   
2,4-diaminopentanoic acid +  
2,5-diaminohexanoic acid 
2,6-diamino-7-hydroxy-azelaic acid 
2-amino-2-hydroxybutanoic acid 
2-amino-2-methylbutanoic acid 
2-amino-3-(2-methylenecyclopropyl)propanoic acid +  
2-amino-3-(3-oxoprop-1-enyl)but-2-enedioic acid +  
2-amino-3-oxo-4-(phosphonooxy)butanoic acid +  
2-amino-3-oxobutanoic acid +  
2-amino-3-phosphonopropanoic acid 
2-amino-4-(S-butylsulfonimidoyl)butanoic acid +   
2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid +   
2-amino-4-formylaminooxy-but-3E-enoic acid 
2-amino-4-oxopentanoic acid +  
2-amino-5-chloro-cis,cis-muconic 6-semialdehyde 
2-amino-5-oxohexanoic acid 
2-amino-5-phosphonopentanoic acid  
2-Amino-9,10-epoxy-8-oxodecanoic acid 
2-amino-Delta(2)-thiazoline-4-carboxylic acid +  
2-aminoacrylic acid +  
2-aminoadipic acid +  
2-aminobut-2-enoic acid 
2-aminoheptanoic acid +  
2-aminohexanoic acid +  
2-aminomuconic acid +  
2-aminopentanoic acid +   
2-aminopimelic acid +  
2-deoxy-D-ribofuranose 1-phosphate +   
2-fluorophenylalanine +  
2-hydroxyphenylalanine +  
2-oxoglutarate(1-) 
2-oxoglutaric acid +  
2-ureidoglycine +  
3-aminoalanine +  
3-chloroalanine +  
3-cyanoalanine  
3-fluorotyrosine +  
3-hydroxylysine 
3-hydroxynorvaline 
3-methylarginine +  
3-methylhistidine 
3-methylthioaspartic acid +  
3-naphthalen-2-ylalanine +  
3-nitrotyrosine +   
3-oxoalanine +  
3-phosphoglyceric acid +   
3-phosphonato-D-glycerate(3-) 
3-thio-L-aspartic acid +  
4-(carboxymethyl)phenylalanine +  
4-(phosphonomethyl)phenylalanine +  
4-aminophenylalanine +  
4-azaleucine 
4-azidophenylalanine +  
4-chloro-L-lysine 
4-fluorophenylalanine +  
4-hydroxy-4-methylglutamic acid +  
4-hydroxyleucine +  
4-iodophenylalanine +  
4-methyleneglutamic acid +  
5,5,5-trifluoroleucine 
5-bromotryptophan 
5-fluorotryptophan 
5-hydroxy-N-formylkynurenine +  
5-methyltryptophan +  
6-(2-amino-2-carboxyethyl)-4-hydroxybenzothiazole 
6-chlorotryptophan +  
6-hydroxydopa 
6-phospho-D-gluconic acid +  
6-phosphonatooxy-D-gluconate 
7-(2-amino-2-carboxyethyl)-5-hydroxy-2H-1,4-benzothiazine-3-carboxylic acid 
7-(2-amino-2-carboxyethyl)-5-hydroxy-3,4-dihydro-2H-1,4-benzothiazin-3-one 
7-chlorotryptophan +  
acetyl-CoA +   
adenosine +   
adenosine 5'-monophosphate +   
adenosine 5'-monophosphate(1+) 
adenosine 5'-monophosphate(2-) +  
ADP +   
ADP(3-) +  
alanine +   
aldehydo-D-ribose 5-phosphate(2-) 
alliin +   
allysine +   
alpha-(methylamino)isobutyric acid  
alpha-(Methylenecyclopropyl)glycine 
alpha-amino fatty acid +   
alpha-amino-gamma-cyanobutanoic acid 
alpha-aminobutyric acid +  
alpha-D-glucose 1-phosphate(2-) 
alpha-D-glucose 6-phosphate(2-) 
alpha-D-mannose 6-phosphate(2-) 
alpha-L-galactose 1-phosphate(2-) 
alpha-methylhistidine +  
alpha-phenylglycine +   
arabinose +  
arginine +   
argpyrimidine 
arogenic acid +  
aspartate(1-) +  
aspartate(2-) +  
aspartic acid +   
ATP +   
ATP(3-) 
ATP(4-) +  
azoxybacilin 
benzylpenillamine 
beta-alaninate 
beta-alanine +   
beta-D-fructofuranose 6-phosphate(2-) 
beta-D-glucose 1-phosphate(2-) 
beta-D-glucose 6-phosphate(2-) +  
beta-L-galactose 1-phosphate(2-) 
Betaine homarine 
betanidin +   
biotin +   
brasilicardin A 
chloroalanine +  
Cilazaprilat +   
cis-aconitic acid 
citrate(1-) +  
citrate(2-) +  
citrate(3-) +   
citric acid +   
citrullines +  
Cucumopine 
Cucurbitine 
cystathionine ketimine 
cystathionines +   
cysteic acid +  
cysteine +   
cystine +   
D-alpha-amino acid +   
D-aspartate(1-) +  
D-cysteinate(1-) 
D-cysteinate(2-) 
D-cysteinium 
D-cysteinyl radical +  
D-erythro-isocitrate(3-) 
D-fructofuranose 1,6-bisphosphate(4-) +  
D-fructofuranose 1-phosphate(2-) +  
D-fructofuranose 6-phosphate(2-) 
D-fructose 1,6-bisphosphate +   
D-fructose 6-phosphate +  
D-galactopyranose 1-phosphate +   
D-glucopyranose 1-phosphate +   
D-glucopyranose 1-phosphate(2-) 
D-glucose 6-phosphate +   
D-mannopyranose 6-phosphate(2-) 
D-mannose 1-phosphate +  
D-mannose 6-phosphate +   
D-penicillamine +   
D-penicillamine disulfide 
D-ribose +   
D-ribose 5-phosphate +   
D-ribulose 5-phosphate(2-) 
D-threo-isocitrate(3-) 
Demethylphosphinothricin 
dGDP 
dihomomethionine +  
Dimethylallyltryptophan 
dityrosine +  
dopa +   
Dopaxanthin quinone 
dTMP +   
Eglinazine 
ergothioneine +   
fructose +   
fructose 1-phosphate +  
fumarate(1-) +  
fumaric acid +   
galactosaminic acid +  
galactose +   
gamma-glutamylputrescine +  
gamma-hydroxyarginine +  
gamma-thiomethyl glutamate 
glucose +   
glutamate(1-) +   
glutamate(2-) +   
glutamic acid +   
glutamic acid 5-methyl ester +  
glutamic acid-2,3,3,4,4-d5 
glutamine +   
glyceraldehyde +   
glycerate +  
glyceric acid +   
glycinate +   
glycine +   
glycine betaine +   
glycine betaine hydrate 
glycinium +  
glycolaldehyde +   
glycyl radical +  
guanosine +   
hexahomomethionine +  
hexahomomethionine S-oxide 
homoarginine +   
homocysteic acid +   
homocysteinate +  
homocysteine +   
A sulfur-containing amino acid consisting of a glycine core with a 2-mercaptoethyl side-chain.
homocysteines +   
homocystines +  
homomethionine +  
homoserine derivative +  
Humilixanthin 
hydroxy-amino acid +   
hydroxyallysine +  
hypoxanthine +   
Ibotenic acid  
IDP  
iminodiacetic acid +  
Indicaxanthin 
isocitric acid +  
Isoclavulanic acid 
Isowillardiine 
keto-phenylpyruvic acid +   
kynurenine +   
L-alaninate +  
L-alanine +   
L-alaninium +  
L-aspartate(1-) +  
L-aspartate(2-) +  
L-Baikiain 
L-cysteinate(1-) +  
L-cysteinate(2-) 
L-cysteinium +  
L-cysteinyl radical +  
L-erythro-isocitrate(3-) 
L-galactose 1-phosphate +  
L-galactose 1-phosphate(2-) +  
L-homocysteine zwitterion +  
L-homolanthionine 
L-Homotyrosine 
L-polyhomomethionine +  
L-ribulose 5-phosphate(2-) 
L-threo-isocitrate(3-) 
L-tyrosinate(1-) 
L-tyrosinate(2-) +  
L-tyrosine +   
L-tyrosinium +  
L-xylulose 5-phosphate(2-) 
lanthionine +   
lanthionine ketimine 
lipoate +  
lipoic acid +   
lupinic acid +  
lysine-4,4,5,5-d4 
malate(2-) +  
malic acid +   
mannose +   
melagatran +   
methionine +   
methionine sulfone +  
methionine sulfoximine +   
Methylselenocysteine Se-oxide 
Miraxanthin-I 
Miraxanthin-III 
Musca-aurin VII 
Musca-aurin-I 
mycosporine-like amino acid +  
myriocin  
N(5)-(L-1-carboxyethyl)-L-ornithine 
N(5)-acyl-L-ornithine +  
N(5)-anhydromevalonyl-N(5)-hydroxy-L-ornithine 
N(5)-hydroxy-L-ornithine 
N(6)-(1,2-dicarboxyethyl)-AMP 
N(6)-(2,4-dinitrophenyl)lysine +  
N(6)-(2-carboxyethyl)lysine +  
N(6)-acetonyllysine 
N(6)-carbamoylmethyllysine 
N(6)-methyllysine 
N,N,N-trimethylglycinium +  
N-(2,4-dinitrophenyl)serine 
N-(2,6-dichlorobenzyl)-3-[2-(2,6-dichlorophenyl)-6-quinolyl]-N-methylalanine +  
N-(3,5-dimethylphenyl)glycine +  
N-(5,6-diphenylfuro[2,3-d]pyrimidin-4-yl)glycine 
N-(p-hydroxyphenyl)glycine 
N-[2-(methylamino)ethyl]-N-[(thymin-1-yl)acetyl]glycine 
N-alkylglycine +   
N-ethylasparagine +  
N-formylkynurenine +  
N-methyldopa +  
N-phenylglycine 
N-phenylserine 
NAD +   
NADH +  
NADP zwitterion +   
NADP(+) +   
NADPH +  
nitrotyrosine +   
non-proteinogenic L-alpha-amino acid +   
O(4)-phosphotyrosine +  
O,2,3-trimethyltyrosine +  
O-acetylhomoserine +  
O-phosphoserine +  
ornaline 
ornithine +   
oxalatosuccinate(3-) +  
oxalosuccinic acid +  
penicillamine +   
pentahomomethionine +  
pentahomomethionine S-oxide 
phenylalanine-d5 
phosphoenolpyruvate  
phosphoenolpyruvic acid 
phosphonatoenolpyruvate 
Portulacaxanthin I 
Portulacaxanthin III 
Proglinazine 
pseudouridine +  
purine +   
putrescine +   
pyruvate +  
pyruvic acid +   
Quisqualic acid  
riboflavin +   
ribulose 5-phosphate +  
S-(5-deoxy-D-ribos-5-yl)-L-homocysteine +  
S-adenosyl-L-homocysteinate 
S-adenosyl-L-homocysteine  
S-ethylhomocysteine +   
S-inosyl-L-homocysteine 
S-substituted L-cysteine +   
Se-methylselenocysteine +   
Selfotel 
serinate +  
serine +   
serine phosphoethanolamine +  
serinium +  
sinefungin  
spermidine +   
spermidine(3+) +  
spermine +   
spermine(4+) +  
Stizolobate 
Stizolobinate 
succinate(1-) 
succinic acid +   
Temocaprilat  
tert-butylglycine 
Tet-glycine 
tetrahomomethionine +  
tetrahydrotyrosine 
thiamine(1+) diphosphate +  
thioproline +  
thyronine +   
thyroxine +   
topaquinone +  
trans-aconitate(3-) 
trans-aconitic acid 
triazolealanine 
tricholomic acid 
trihomomethionine +  
UDP-alpha-D-glucose  
UDP-alpha-D-xylose 
uridine +   
Vulgaxanthin-I 
xanthine +   
xylulose 5-phosphate +   

Synonyms
Related Synonyms: 2-Amino-4-mercaptobutyric acid ;   2-amino-4-sulfanylbutanoic acid ;   Formula=C4H9NO2S ;   Hcy ;   InChI=1S/C4H9NO2S/c5-3(1-2-8)4(6)7/h3,8H,1-2,5H2,(H,6,7) ;   InChIKey=FFFHZYDWPBMWHY-UHFFFAOYSA-N ;   SMILES=NC(CCS)C(O)=O
Alternate IDs: CHEBI:14408 ;   CHEBI:5751
Xrefs: HMDB:HMDB0000742 ;   KEGG:C05330
Xref Mesh: MESH:D006710
Xrefs: PMID:11133260 ;   PMID:16596805 ;   PMID:18370634 ;   Wikipedia:Homocysteine
Cyclic Relationships: is_conjugate_acid_of CHEBI:66952 ;   is_tautomer_of CHEBI:58065

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