preferred_name: taurocholate + L-serine <=> L-serocholate + taurine
preferred_name_lc: taurocholate + l-serine <=> l-serocholate + taurine
label: taurocholate + L-serine <=> L-serocholate + taurine
label_lc: taurocholate + l-serine <=> l-serocholate + taurine