label: [CysO sulfur-carrier protein]-Gly-NH-CH2-C(O)SH + O-phospho-L-serine <=> [CysO sulfur-carrier protein]-Gly-NH-CH2-C(O)-S-L-Cys + phosphate
label_lc: [cyso sulfur-carrier protein]-gly-nh-ch2-c(o)sh + o-phospho-l-serine <=> [cyso sulfur-carrier protein]-gly-nh-ch2-c(o)-s-l-cys + phosphate