EC 1 - Oxidoreductases
EC 1.8 - Acting on a sulfur group of donors
EC 1.8.4 - With a disulfide as acceptor
EC 1.8.4.13 - L-methionine (S)-S-oxide reductase
IntEnz view
ENZYME view
IntEnz Enzyme Nomenclature
EC 1.8.4.13
Names
Accepted name:
L-methionine (S)-S-oxide reductase
Other
names:
L-methionine:oxidized-thioredoxin S-oxidoreductase
acetylmethionine sulfoxide reductase
methionine sulfoxide reductase
methyl sulfoxide reductase I and II
fSMsr
methionine-S-oxide reductase
free-methionine (S)-S-oxide reductase
acetylmethionine sulfoxide reductase
methionine sulfoxide reductase
methyl sulfoxide reductase I and II
fSMsr
methionine-S-oxide reductase
free-methionine (S)-S-oxide reductase
Systematic name:
L-methionine:thioredoxin-disulfide S-oxidoreductase
Reaction
- L-methionine + thioredoxin disulfide + H2O = L-methionine (S)-S-oxide + thioredoxin
Cofactor
Comments:
Requires NADPH [2]. The reaction occurs in the opposite direction to that given above. Dithiothreitol can replace reduced thioredoxin. L-Methionine (R)-S-oxide is not a substrate [see EC 1.8.4.14, L-methionine (R)-S-oxide reductase].
Links to other databases
Enzymes and pathways:
NC-IUBMB
,
BRENDA
,
DIAGRAM
,
DIAGRAM
,
ExplorEnz
,
ENZYME@ExPASy
,
KEGG
,
MetaCyc
,
UniPathway
Gene Ontology:
GO:0033744
UniProtKB/Swiss-Prot:
BISC_ECOLI
References
-
A specific enzymatic reduction of L(−) methionine sulfoxide and a related nonspecific reduction of disulfides.J. Biol. Chem. 235 : 2910-2916 (1960).
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Reduction of methionine sulfoxide to methionine by Escherichia coli.J. Bacteriol. 139 : 161-164 (1979). [PMID: 37234]
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The purification of methionine sulfoxide reductase from Escherichia coli.Anal. Biochem. 102 : 393-398 (1980). [PMID: 6999943]
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Methionine sulfoxide reductases: history and cellular role in protecting against oxidative damage.Biochim. Biophys. Acta 1703 : 203-212 (2005). [PMID: 15680228]
[EC 1.8.4.13, created 1984 as EC 1.8.4.5, part-transferred 2006 to EC 1.8.4.13]