preferred_name: ADP + ADP <=> AMP + ATP [AK2] (Xenopus tropicalis)
preferred_name_lc: adp + adp <=> amp + atp [ak2] (xenopus tropicalis)
label: ADP + ADP <=> AMP + ATP [AK2] (Xenopus tropicalis)
label_lc: adp + adp <=> amp + atp [ak2] (xenopus tropicalis)