I-Antioxidant-Glutathione

I-Glutathione iyi-polypeptide equkethe i-cysteine, etholakala ezintweni eziningi eziphilayo ezi-aerobic. Akwazi ukungeniswa ekudleni kodwa ahlanganiswa kusuka kuma-amino acid ahambisanayo kuseli. Njengoba iqembu le-sulfhydryl ku-cysteine ​​​​linciphisa futhi lingancishiswa ngemva kwe-oxidation, i-glutathione inomsebenzi we-antioxidant. Kuseli, i-glutathione i-oxidized noma i-oxid ngokuqondile ngamanye ama-metabolite nama-enzyme afana ne-ascorbate, i-glutathione peroxidase, ne-glutaredoxin kumjikelezo we-Glutathione{3}}ascorbate (Glutathione{4}}umjikelezo we-ascorbate). Ngemva kokusabela ngezinto ezithile ezi-oxidizing, ingancishiswa ibe yi-glutathione reductase (glutathione reductase). Uma kubhekwa ukugcwala kwayo okuphezulu esitokisini kanye nendima yayo emaphakathi esimweni se-redox seseli, i-glutathione ingenye yama-antioxidants abaluleke kakhulu eselula. Kwezinye izinto eziphilayo, indawo ye-glutathione izothathelwa indawo enye i-sulfhydryl{8}}equkethe i-polypeptides, njenge-mycothiol (AcCys-GlcN-Ins) ku-actinomycetes, ne-bacillithiol (Cys{11}}GlcN{12}i-bacterium{12}Ins. mal) esikhundleni, emzimbeni we-kinetic nge-Trypanothione (Trypanothione).