CHEBI:15356 - cysteine

ChEBI IDCHEBI:15356
ChEBI Namecysteine
Stars
DefinitionA sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3.
Secondary ChEBI IDsCHEBI:4050, CHEBI:14061, CHEBI:23508
Last Modified6 July 2021
SubmitterMarcus Ennis
DownloadsMolfile
FormulaC3H7NO2S
Net Charge0
Average Mass121.161
Monoisotopic Mass121.01975
SMILESNC(CS)C(=O)O
InChIInChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)
InChIKeyXUJNEKJLAYXESH-UHFFFAOYSA-N
Wikipedia
Species of MetaboliteComponentSourceComments
Homo sapiens (ncbitaxon:9606) - PubMed (21886157)
Arabidopsis thaliana (ncbitaxon:3702) - PubMed (24285094)
Mus musculus (ncbitaxon:10090) - PubMed (25181601)
Daphnia magna (ncbitaxon:35525) - PubMed (20117838)
Chlamydomonas reinhardtii (ncbitaxon:3055) - PubMed (25515814)
Roles Classification
Chemical Roles:
Bronsted base  A molecular entity capable of accepting a hydron from a donor (Brønsted acid).
Bronsted acid  A molecular entity capable of donating a hydron to an acceptor (Brønsted base).
Biological Role:
fundamental metabolite  Any metabolite produced by all living cells.
ChEBI Ontology
Outgoing Relation(s)
cysteine (CHEBI:15356) has part sulfanylmethyl group (CHEBI:50326)
cysteine (CHEBI:15356) has role fundamental metabolite (CHEBI:78675)
cysteine (CHEBI:15356) is a polar amino acid (CHEBI:26167)
cysteine (CHEBI:15356) is a sulfur-containing amino acid (CHEBI:26834)
cysteine (CHEBI:15356) is a α-amino acid (CHEBI:33704)
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 Relation(s)
Se-L-selenocysteine-S-L-cysteine residue (CHEBI:142235) 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)
γGluCys(IAN)Glu (CHEBI:64978) 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  Source
CysteineKEGG COMPOUND
2-Amino-3-mercaptopropionic acidKEGG COMPOUND
2-amino-3-sulfanylpropanoic acidIUPAC
2-amino-3-mercaptopropanoic acidJCBN
HcysIUPAC
CysteinChEBI
Manual XrefsDatabases
C00736KEGG COMPOUND
CysteineWikipedia
C00001351KNApSAcK
C00007323KNApSAcK
Registry NumbersSources
Gmelin:2933Gmelin
Reaxys:1721406Reaxys
CAS:3374-22-9NIST Chemistry WebBook
CAS:3374-22-9ChemIDplus
CAS:3374-22-9KEGG COMPOUND
Citations