preferred_name: L-selenocysteine + 2-oxobutanoate + NH4(+) => L-selenocystathionine + H2O
preferred_name_lc: l-selenocysteine + 2-oxobutanoate + nh4(+) => l-selenocystathionine + h2o
label: L-selenocysteine + 2-oxobutanoate + NH4(+) => L-selenocystathionine + H2O
label_lc: l-selenocysteine + 2-oxobutanoate + nh4(+) => l-selenocystathionine + h2o