hydrogenselenide + L-alanine + A + H(+) => L-selenocysteine + AH2
hydrogenselenide + l-alanine + a + h(+) => l-selenocysteine + ah2
hydrogenselenide + L-alanine + A + H(+) => L-selenocysteine + AH2
hydrogenselenide + l-alanine + a + h(+) => l-selenocysteine + ah2