preferred_name: 2 delta-aminolevulinate => porphobilinogen + 2 H2O (Gallus gallus)
preferred_name_lc: 2 delta-aminolevulinate => porphobilinogen + 2 h2o (gallus gallus)
label: 2 delta-aminolevulinate => porphobilinogen + 2 H2O (Gallus gallus)
label_lc: 2 delta-aminolevulinate => porphobilinogen + 2 h2o (gallus gallus)