label: tetrahydropteroyltri-L-glutamate + L-selenomethionine => L-selenohomocysteine + 5-methyltetrahydropteroyltri-L-glutamate
label_lc: tetrahydropteroyltri-l-glutamate + l-selenomethionine => l-selenohomocysteine + 5-methyltetrahydropteroyltri-l-glutamate