In H 2 S/HS and cysteine catabolic pathways, under less strict conditions, the formation of persulfides in thiosulfate sulfurtransferases and MPSTs enables the transfer of sulfur atoms between acceptors to eliminate toxic forms of sulfur ( Persulfides as potential protective modifications against irreversible thiol oxidation Protein cysteines are susceptible to several posttranslational modifications, including sulfenylation (RSOH), sulfinylation (RSO 2 H), sulfonylation (RSO 3 H), thiolation or disulfide formation (RSSR, e.g., glutathionylation, RSSG), nitrosation (RSNO), prenylation, acylation and, as further explained herein, persulfidation (RSSH)
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Compared to conventional IGF-1, this enhances its bioavailability and permits longer, more sustained activation of cellular receptors, hence enhancing its anabolic effects (3)
Cani PD, Possemiers S, Van de Wiele T, Guiot Y, Everard A, Rottier O, et al
