preferred_name: hydroxysqualene + diphosphate => presqualene diphosphate + H2O
preferred_name_lc: hydroxysqualene + diphosphate => presqualene diphosphate + h2o
label: hydroxysqualene + diphosphate => presqualene diphosphate + H2O
label_lc: hydroxysqualene + diphosphate => presqualene diphosphate + h2o