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Overview

Uniprot IDA0A8I6A0P8
Protein NameMitochondrial peptide methionine sulfoxide reductase
Gene NameMsra
OrganismRattus norvegicus

Kla Sites from experimental identification

Position Flanking peptide
104 YTRNPTYKEVCSEKT
183 EYQKVLSKHGFGPIT

Function

Catalyzes the reversible oxidation-reduction of methionine sulfoxide in proteins to methionine. Has an important function as a repair enzyme for proteins that have been inactivated by oxidation. Plays a crucial role in repairing oxidized methionine residues in key lens proteins, such as alpha-crystallin (CRYAA/CRYAB) and cytochrome c (CYCS), thereby restoring their function and maintaining lens transparency

Protein Sequence

10 MLSASRRTLQ 20 LLSSSIPVRM 30 MGDSSSKVIS 40 AEEALPGRTE 50 SIPVAGTTAW 60 LLSMRVEPAH 70 SALPENVWGM 80 GCFWGAERKF 90 WLLKGVYSTQ 100 VGFAGGYTRN 110 PTYKEVCSEK 120 TGHAEVVRVV 130 YRPEHVSFEE 140 LLKVFWENHD 150 PTQGMRQGND 160 CGTQYRSAVY 170 PTSAVQMEAA 180 LKSKEEYQKV 190 LSKHGFGPIT 200 TDIREGQVFY 210 YAEDYHQQYL 220 SKNPDGYCGL 230 GGTGVSCPTA IKK

Gene Ontology

Classification GO ID Description
Molecular Function GO:0008113 peptide-methionine (S)-S-oxide reductase activity

Reference

[1] Chen Y, Sun W, Sun Z, Zhao H, Wu T et al.. Effect of electroacupuncture on hippocampal protein lactylation in a rat model of vascular dementia.. Front Neurol 16:1629474. 2025. PMID: 40963935.