CHEBI:15356 - cysteine

Main ChEBI Ontology Automatic Xrefs
ChEBI Name cysteine
ChEBI ID CHEBI:15356
Definition A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3.
Stars This entity has been manually annotated by the ChEBI Team.
Secondary ChEBI IDs CHEBI:23508, CHEBI:4050, CHEBI:14061
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Formula C3H7NO2S
Net Charge 0
Average Mass 121.15922
InChI InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)
InChIKey XUJNEKJLAYXESH-UHFFFAOYSA-N
SMILES NC(CS)C(O)=O
Metabolite of Species Details
Mus musculus (NCBI:10090) See: PubMed
Chlamydomonas reinhardtii (NCBI:3055) See: PubMed
Daphnia magna (NCBI:35525) See: Mixtures of similarly acting compounds in Daphnia magna: From gene to metabolite and beyondTine Vandenbrouck, Oliver A.H. Jones, Nathalie Dom, Julian L. Griffin, Wim De CoenEnvironment International 36 (2010) 254-268
Arabidopsis thaliana (NCBI:3702) See: PubMed
Homo sapiens (NCBI:9606) See: PubMed
Roles Classification
Chemical Role(s): Bronsted acid
A molecular entity capable of donating a hydron to an acceptor (Bronsted base).
(via oxoacid )
Biological Role(s): fundamental metabolite
Any metabolite produced by all living cells.
View more via ChEBI Ontology
ChEBI Ontology
Outgoing cysteine (CHEBI:15356) has part sulfanylmethyl group (CHEBI:50326)
cysteine (CHEBI:15356) has role fundamental metabolite (CHEBI:78675)
cysteine (CHEBI:15356) is a α-amino acid (CHEBI:33704)
cysteine (CHEBI:15356) is a sulfur-containing amino acid (CHEBI:26834)
cysteine (CHEBI:15356) is conjugate acid of cysteinate(1−) (CHEBI:32456)
cysteine (CHEBI:15356) is conjugate base of cysteinium (CHEBI:32458)
cysteine (CHEBI:15356) is tautomer of cysteine zwitterion (CHEBI:35237)
Incoming γGluCys(IAN)Glu (CHEBI:64978) has functional parent cysteine (CHEBI:15356)
cysteine derivative (CHEBI:23509) has functional parent cysteine (CHEBI:15356)
cysteinyl radical (CHEBI:32740) has functional parent cysteine (CHEBI:15356)
D-cysteine (CHEBI:16375) is a cysteine (CHEBI:15356)
L-cysteine (CHEBI:17561) is a cysteine (CHEBI:15356)
cysteinium (CHEBI:32458) is conjugate acid of cysteine (CHEBI:15356)
cysteinate(1−) (CHEBI:32456) is conjugate base of cysteine (CHEBI:15356)
cystein-S-yl group (CHEBI:32795) is substituent group from cysteine (CHEBI:15356)
cysteine residue (CHEBI:32460) is substituent group from cysteine (CHEBI:15356)
cysteino group (CHEBI:32459) is substituent group from cysteine (CHEBI:15356)
cysteinyl group (CHEBI:23511) is substituent group from cysteine (CHEBI:15356)
cysteine zwitterion (CHEBI:35237) is tautomer of cysteine (CHEBI:15356)
IUPAC Name
cysteine
Synonyms Sources
2-amino-3-mercaptopropanoic acid JCBN
2-Amino-3-mercaptopropionic acid KEGG COMPOUND
2-amino-3-sulfanylpropanoic acid IUPAC
C ChEBI
cisteína ChEBI
Cys ChEBI
Cystein ChEBI
Cysteine KEGG COMPOUND
cystéine ChEBI
Hcys IUPAC
Zystein ChEBI
Database Links Databases
C00001351 KNApSAcK
C00007323 KNApSAcK
C00736 KEGG COMPOUND
Cysteine Wikipedia
View more database links
Registry Numbers Types Sources
1721406 Beilstein Registry Number Beilstein
1721406 Reaxys Registry Number Reaxys
2933 Gmelin Registry Number Gmelin
3374-22-9 CAS Registry Number ChemIDplus
3374-22-9 CAS Registry Number NIST Chemistry WebBook
Citations Waiting for Citations Types Sources
17439666 PubMed citation CiteXplore
25181601 PubMed citation CiteXplore
Last Modified
10 June 2015