Secondly, intracellular thiols are required as part of its enzymatic mechanism and thirdly, the system acts to recycle reactive metabolites back to a form which may be useful to cellular metabolism.
Drugo, intracelularni tioli su neophodni kao deo ćelijskog enzimatskog mehanizma, i treće, ovaj sistem deluje tako što reciklira reaktivne metabolite nazad u oblik koji je podesan za ćelijski metabolizam.