preferred_name: S-sulfanyl-L-cysteinyl-[cysteine desulfurase] + L-alanine => L-cysteinyl-[cysteine desulfurase] + L-cysteine
preferred_name_lc: s-sulfanyl-l-cysteinyl-[cysteine desulfurase] + l-alanine => l-cysteinyl-[cysteine desulfurase] + l-cysteine
label: S-sulfanyl-L-cysteinyl-[cysteine desulfurase] + L-alanine => L-cysteinyl-[cysteine desulfurase] + L-cysteine
label_lc: s-sulfanyl-l-cysteinyl-[cysteine desulfurase] + l-alanine => l-cysteinyl-[cysteine desulfurase] + l-cysteine