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1.8.4.12: peptide-methionine (R)-S-oxide reductase

This is an abbreviated version!
For detailed information about peptide-methionine (R)-S-oxide reductase, go to the full flat file.

Word Map on EC 1.8.4.12

Reaction

L-methionine (R)-sulfoxide
+
thioredoxin
=
L-methionine
+
thioredoxin disulfide
+
H2O

Synonyms

1-Cys methionine sulfoxide reductase B, 1-Cys MSRB, CBS-1, CBS1, cysteine-containing methionine-R-sulfoxide reductase, LOC100305558, LOC100798757, methionine sulfoxide reductase, methionine sulfoxide reductase B, methionine sulfoxide reductase B1, methionine sulfoxide reductase B2, methionine sulfoxide reductase B3, methionine sulfoxide reductase B8, methionine sulfoxide reductase MsrB3, methionine sulfoxide reductases B, methionine sulfoxide reductases B2, methionine sulphoxide reductase, methionine-R-sulfoxide reductase, methionine-R-sulfoxide reductase B, methionine-R-sulfoxide reductase B2, MetO reductase, More, MSR, MsrA, MsrA/B, MsrA/MsrB, msrAB, MsrABTk, MsrB, MSRB1, MsrB2, MsrB3, MsrB3A, MSRB4, MsrB5, MsrB7, MsrB8, MsrBA, Mxr2, NtMsrB2, OsMSRB5, PaMsrB1, peptide methionine sulfoxide reductase, peptide methionine sulfoxide reductase type B, PilB, PilB protein, PMSR, Sel-X, selenocysteine-containing methionine-R-sulfoxide reductase, selenoprotein R, SelR, sulindac reductase, TbmsrB, TCDM_06423, YeaA

ECTree

     1 Oxidoreductases
         1.8 Acting on a sulfur group of donors
             1.8.4 With a disulfide as acceptor
                1.8.4.12 peptide-methionine (R)-S-oxide reductase

Natural Substrates Products

Natural Substrates Products on EC 1.8.4.12 - peptide-methionine (R)-S-oxide reductase

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NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
calmodulin-L-methionine (R)-sulfoxide + thioredoxin
calmodulin-L-methionine + thioredoxin disulfide + H2O
show the reaction diagram
Hsp21 L-methionine S-oxide + dithiothreitol
Hsp21 L-methionine + dithiothreitol S-oxide
show the reaction diagram
-
chloroplast-localized small heat shock protein, repair function for heat shock protein Hsp21 by restoring the structure, which is crucial for cellular resistance to oxidative stress, the enzyme can protect the chaperone-like activity of Hsp21
-
-
?
L-methionine (R)-S-oxide + thioredoxin
L-methionine + thioredoxin disulfide + H2O
show the reaction diagram
-
-
-
?
L-methionine (R)-sulfoxide + thioredoxin
L-methionine + thioredoxin disulfide + H2O
show the reaction diagram
L-methionine (R,S)-sulfoxide + thioredoxin
L-methionine + thioredoxin disulfide
show the reaction diagram
L-methionine-(R)-S-oxide + thioredoxin
L-methionine + thioredoxin disulfide + H2O
show the reaction diagram
peptide-L-methionine (R)-S-oxide + thioredoxin
peptide-L-methionine + thioredoxin disulfide + H2O
show the reaction diagram
-
-
-
?
peptide-L-methionine-(R)-S-oxide + thioredoxin
peptide-L-methionine + thioredoxin disulfide + H2O
show the reaction diagram
upon oxidative stress, the overexpression of methionine sulfoxide reductase B2 leads to the preservation of mitochondrial integrity by decreasing the intracellular reactive oxygen species build-up through its scavenging role, hence contributing to cell survival and protein maintenance
-
-
?
protein L-methionine (R)-sulfoxide + thioredoxin
protein L-methionine + thioredoxin disulfide
show the reaction diagram
-
type B enzyme CBS1 is stereospecific for the R-stereomer of methionine residues of peptides and proteins
-
-
?
protein-L-methionine (R)-S-oxide + dithiothreitol
protein-L-methionine + dithiothreitol disulfide + H2O
show the reaction diagram
Met sulfoxide residues in an Met-rich proteins can be reduced by MsrA and MsrB
-
-
?
protein-L-methionine (R)-sulfoxide + dithiothreitol
protein-L-methionine + dithiothreitol disulfide + H2O
show the reaction diagram
-
type B enzyme CBS1 is stereospecific for the R-stereomer of methionine residues of peptides and proteins
-
-
?
protein-L-methionine-(R)-sulfoxide + thioredoxin
protein-L-methionine + thioredoxin disulfide + H2O
show the reaction diagram
-
MsrB is specific for the R-form, the membrane-associated isozyme reduces both R- and S-stereoisomers of methionine sulfoxide, N-acetylmethionine sulfoxide, and D-Ala-Met-enkephalin
-
-
?
sulindac + thioredoxin
sulindac sulfide + thioredoxin disulfide
show the reaction diagram
sulindac + thioredoxin
sulindac sulfide + thioredoxin disulfide + H2O
show the reaction diagram
additional information
?
-