Record Information
Version1.0
StatusDetected and Quantified
Creation Date2020-10-27 23:41:05 UTC
Update Date2024-10-11 03:58:24 UTC
Metabolite IDMMDBc0000243
Metabolite Identification
Common NameD-Cysteine
DescriptionD-Cysteine is a naturally occurring enantiomer of L-Cysteine. It is a non-proteogenic sulfur-containing amino acid. Cysteine is named after cystine, which comes from the Greek word kustis meaning bladder − cystine was first isolated from kidney stones. (wikipedia) D-cysteine can be generated from L-cysteine via cysteine racemase. D-Cysteine is known to be toxic to bacteria and several bacteria (and plants) have developed and enzyme called D-cysteine desulfhydrase (EC 4.1.99.4). This enzyme decomposes D-cysteine into pyruvate, H2S, and NH3. (PMID: 15720402 ).
Structure
Synonyms
ValueSource
(2S)-2-Amino-3-mercaptopropanoic acidChEBI
(2S)-2-Amino-3-sulfanylpropanoic acidChEBI
(S)-2-Amino-3-mercaptopropanoic acidChEBI
D-Amino-3-mercaptopropionic acidChEBI
D-CysteinChEBI
D-ZysteinChEBI
DCYChEBI
(2S)-2-Amino-3-mercaptopropanoateGenerator
(2S)-2-Amino-3-sulfanylpropanoateGenerator
(2S)-2-Amino-3-sulphanylpropanoateGenerator
(2S)-2-Amino-3-sulphanylpropanoic acidGenerator
(S)-2-Amino-3-mercaptopropanoateGenerator
D-Amino-3-mercaptopropionateGenerator
CysteineMeSH, HMDB
Half cystineMeSH, HMDB
Cysteine hydrochlorideMeSH, HMDB
Half-cystineMeSH, HMDB
L-CysteineMeSH, HMDB
L CysteineMeSH, HMDB
Zinc cysteinateMeSH, HMDB
Molecular FormulaC3H7NO2S
Average Mass121.15
Monoisotopic Mass121.019749643
IUPAC Name(2S)-2-amino-3-sulfanylpropanoic acid
Traditional NameL cysteine
CAS Registry Number921-01-7
SMILES
N[C@H](CS)C(O)=O
InChI Identifier
InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m1/s1
InChI KeyXUJNEKJLAYXESH-UWTATZPHSA-N