preferred_name: hydrogenselenide + L-alanine + A + H(+) => L-selenocysteine + AH2
preferred_name_lc: hydrogenselenide + l-alanine + a + h(+) => l-selenocysteine + ah2
label: hydrogenselenide + L-alanine + A + H(+) => L-selenocysteine + AH2
label_lc: hydrogenselenide + l-alanine + a + h(+) => l-selenocysteine + ah2