cystine (CHEBI:17376)

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ChEBI Name	cystine

ChEBI ID	CHEBI:17376

Definition	A sulfur-containing amino acid obtained by the oxidation of two cysteine molecules which are then linked via a disulfide bond.

Stars	This entity has been manually annotated by the ChEBI Team.

Secondary ChEBI IDs	CHEBI:4052, CHEBI:23513, CHEBI:14062

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Formula

C6H12N2O4S2

Net Charge

Average Mass

240.30256

Monoisotopic Mass

240.02385

InChI

InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)

InChIKey

LEVWYRKDKASIDU-UHFFFAOYSA-N

SMILES

NC(CSSCC(N)C(O)=O)C(O)=O

Metabolite of Species	Details
Homo sapiens (NCBI:txid9606)	See: PubMed

Roles Classification
Chemical Role(s):	Bronsted base A molecular entity capable of accepting a hydron from a donor (Bronsted acid). (via organic amino compound ) Bronsted acid A molecular entity capable of donating a hydron to an acceptor (Bronsted base). (via oxoacid )

Biological Role(s):	human metabolite Any mammalian metabolite produced during a metabolic reaction in humans (Homo sapiens). mouse metabolite Any mammalian metabolite produced during a metabolic reaction in a mouse (Mus musculus).

ChEBI Ontology
Outgoing	cystine (CHEBI:17376) has role human metabolite (CHEBI:77746) cystine (CHEBI:17376) has role mouse metabolite (CHEBI:75771) cystine (CHEBI:17376) is a cysteine derivative (CHEBI:23509) cystine (CHEBI:17376) is a organic disulfide (CHEBI:35489) cystine (CHEBI:17376) is a sulfur-containing amino acid (CHEBI:26834) cystine (CHEBI:17376) is tautomer of cystine zwitterion (CHEBI:35492)

Incoming	Cys-Gly disulfide (CHEBI:133040) has functional parent cystine (CHEBI:17376) D-cystine (CHEBI:35494) is a cystine (CHEBI:17376) L-cystine (CHEBI:16283) is a cystine (CHEBI:17376) cystine residue (CHEBI:50051) is substituent group from cystine (CHEBI:17376) cystinyl group (CHEBI:50050) is substituent group from cystine (CHEBI:17376) cystyl group (CHEBI:23514) is substituent group from cystine (CHEBI:17376) cystine zwitterion (CHEBI:35492) is tautomer of cystine (CHEBI:17376)

IUPAC Names

3,3'-disulfanediylbis(2-aminopropanoic acid)

cystine

Synonyms	Sources
3,3'-dithiobis(2-aminopropanoic acid)	ChEBI
alpha-Diamino-beta-dithiolactic acid	KEGG COMPOUND
cistina	ChEBI
Cystin	ChEBI
Cystine	KEGG COMPOUND
Dicysteine	KEGG COMPOUND
Zystin	ChEBI

Last Modified

17 August 2016