S-sulfanyl-L-cysteinyl-[cysteine desulfurase] + (sulfur carrier)-H = L-cysteinyl-[cysteine desulfurase] + (sulfur carrier)-SH
s-sulfanyl-l-cysteinyl-[cysteine desulfurase] + (sulfur carrier)-h = l-cysteinyl-[cysteine desulfurase] + (sulfur carrier)-sh
S-sulfanyl-L-cysteinyl-[cysteine desulfurase] + (sulfur carrier)-H = L-cysteinyl-[cysteine desulfurase] + (sulfur carrier)-SH
s-sulfanyl-l-cysteinyl-[cysteine desulfurase] + (sulfur carrier)-h = l-cysteinyl-[cysteine desulfurase] + (sulfur carrier)-sh