preferred_name: Fe(II)-heme o + 2 A + H2O => Fe(II)-heme a + 2 AH2
preferred_name_lc: fe(ii)-heme o + 2 a + h2o => fe(ii)-heme a + 2 ah2
label: Fe(II)-heme o + 2 A + H2O => Fe(II)-heme a + 2 AH2
label_lc: fe(ii)-heme o + 2 a + h2o => fe(ii)-heme a + 2 ah2