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Literature summary extracted from

  • Laugier, E.; Tarrago, L.; Santos, C.V.; Eymery, F.; Havaux, M.; Rey, P.
    Arabidopsis thaliana plastidial methionine sulfoxide reductases B, MSRBs, account for most leaf peptide MSR activity and are essential for growth under environmental constraints through a role in the preservation of photosystem antennae (2010), Plant J., 61, 271-282.
    View publication on PubMed

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
1.8.4.12 plastid
-
 Arabidopsis thaliana 9536
-

Organism

EC Number Organism UniProt Comment Textmining
1.8.4.12 Arabidopsis thaliana
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.8.4.12 leaf
-
 Arabidopsis thaliana
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.8.4.12 L-methionine (R)-sulfoxide + thioredoxin
-
 Arabidopsis thaliana L-methionine + thioredoxin disulfide + H2O
-
 ?
1.8.4.12 oxidized chloroplast signal particle protein 43 + ?
-
 Arabidopsis thaliana reduced chloroplast signal particle protein 43 + ?
-
 ?
1.8.4.12 oxidized chloroplast signal particle protein 54 + ?
-
 Arabidopsis thaliana reduced chloroplast signal particle protein 54 + ?
-
 ?

Synonyms

EC Number Synonyms Comment Organism
1.8.4.12 methionine sulfoxide reductase B
-
 Arabidopsis thaliana
1.8.4.12 MSRB1 isoform Arabidopsis thaliana
1.8.4.12 MsrB2 isoform Arabidopsis thaliana

Cofactor

EC Number Cofactor Comment Organism Structure
1.8.4.12 thioredoxin
-
 Arabidopsis thaliana

General Information

EC Number General Information Comment Organism
1.8.4.12 malfunction the concomitant absence of both protein isoforms MSRB1 and MSRB2 results in a reduced growth for plants cultivated under high light or low temperature, double mutant lines restored for MSRB2 expression display no phenotype, the absence of plastidial MSRBs is associated with an increased chlorophyll a/b ratio, a reduced content of Lhca1 and Lhcb1 proteins, and an impaired photosynthetic performance Arabidopsis thaliana