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Overview

Uniprot IDA0A8I6AN14
Protein NameMitochondrial peptide methionine sulfoxide reductase
Gene NameMsra
OrganismRattus norvegicus

Kla Sites from experimental identification

Position Flanking peptide
141 EYQKVLSKHGFGPIT
62 YTRNPTYKEVCSEKT

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 MSKAKHHVSG 20 NRTVEPFPEG 30 TQMAVFGMGC 40 FWGAERKFWL 50 LKGVYSTQVG 60 FAGGYTRNPT 70 YKEVCSEKTG 80 HAEVVRVVYR 90 PEHVSFEELL 100 KVFWENHDPT 110 QGMRQGNDCG 120 TQYRSAVYPT 130 SAVQMEAALK 140 SKEEYQKVLS 150 KHGFGPITTD 160 IREGQVFYYA 170 EDYHQQYLSK 180 NPDGYCGLGG 190 TGVSCPTAIK K

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.