The metallothionein-like, 23-amino-acid peptide NO-inducible nitrosothionein does not protect against heavy metal toxicity like its homologues, but instead helps relieve nitrosative stress by reaction of six cysteine residues to form SNO adducts, which are recycled back to thiols by thioredoxin.
- Shengmin Zhou
- Toshiaki Narukami
- Naoki Takaya