Record Information
Version2.0
StatusDetected and Quantified
Creation Date2022-11-09 19:17:03 UTC
Update Date2025-10-07 16:09:52 UTC
Metabolite IDMMDBc0057152
Metabolite Identification
Common NameL-Selenocysteine
DescriptionL-Selenocysteine is a naturally occurring amino acid and a member of the chemical class of selenoamino acids. Its chemical structure features a selenium atom replacing the sulfur atom in cysteine, which allows it to participate in various biochemical pathways. L-Selenocysteine is crucial for the synthesis of selenoproteins, including glutathione peroxidase (GPX), a key antioxidant enzyme that protects cells from oxidative damage (PMID:31082108 ). It is involved in detoxification processes, as it helps restore biothiol levels and counteracts mercury (II) ion toxicity (PMID:39884041 ). Additionally, L-selenocysteine has been shown to influence biofilm formation in certain bacterial strains, demonstrating a regulatory effect at specific concentrations (PMID:38475877 ). It also plays a role in cardiovascular protection through its derivative, Se-methyl L-selenocysteine (PMID:38019326 ). Furthermore, studies indicate that L-selenocysteine can induce apoptosis in HepG-2 cells via reactive oxygen species-mediated signaling pathways, highlighting its potential anticancer properties (PMID:35716289 ). Overall, L-selenocysteine is a vital metabolite with diverse roles in both chemistry and biology.
Structure
Synonyms
ValueSource
3-SelenylalanineMeSH
Selenocysteine, DL-isomerMeSH
Selenocysteine, DL isomerMeSH
3 SelenylalanineMeSH
3-Selenyl- L-alanineMeSH
L Alanine, 3 selenylMeSH
Molecular FormulaC3H6NO2Se
Average Mass167.057
Monoisotopic Mass167.956375
IUPAC NameNot Available
Traditional NameNot Available
CAS Registry NumberNot Available
SMILESNot Available
InChI Identifier
Not Available
InChI KeyFDKWRPBBCBCIGA-REOHCLBHSA-N