Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-17 23:55:21 UTC
Update Date2022-08-31 17:40:01 UTC
Metabolite IDMMDBc0030137
Metabolite Identification
Common NameL-Methionine-(S)-S-oxide
DescriptionL-methionine-(s)-s-oxide is an oxidized form of methionine. Methionine is an amino acid susceptible to being oxidized to methionine sulfoxide (MetSO). The reduction of MetSO to methionine is catalyzed by methionine sulfoxide reductase (MSR), an enzyme present in almost all organisms. (PMID 20969952 ) Oxidation of methionine to methionine sulfoxide is a major oxidative stress product that reaches levels as high as 60% in cataract while being essentially absent from clear lenses. Methionine oxidation results in loss of protein function that can be reversed through the action of methionine sulfoxide reductase A (MsrA), which is implicated in oxidative stress protection and is an essential regulator of longevity in species ranging from Escherichia coli to mice. (PMID 15199188 )
Structure
Synonyms
ValueSource
Methionine sulfoxide, (2R)-isomerMeSH
Methionine sulfoxide, 35S-labeled, (+-)-isomerMeSH
Methionine sulfoxide, (+-)-isomerMeSH
Methionine sulfoxide, (S-(r*,s*))-isomerMeSH
Methionine sulfoxide, (2S)-isomerMeSH
Methionine sulfoxide, (R-(r*,s*))-isomerMeSH
Molecular FormulaC5H11NO3S
Average Mass165.211
Monoisotopic Mass165.045963913
IUPAC Name(2R)-2-amino-4-[(S)-methanesulfinyl]butanoic acid
Traditional Namemethionine sulfoxide
CAS Registry Number454-41-1
SMILES
C[S@](=O)CC[C@@H](N)C(O)=O
InChI Identifier
InChI=1S/C5H11NO3S/c1-10(9)3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-,10+/m1/s1
InChI KeyQEFRNWWLZKMPFJ-KNODYTOMSA-N