>4WAK_1|Chains A, B|Carbonic anhydrase 2|Haemophilus influenzae (71421) MDKIKQLFANNYSWAQRMKEENSTYFKELADHQTPHYLVIACSDSRVPAEKLTNLEPGELFVHRNVANQVIHTDFNCLSVVQYAVDVLKIEHIIICGHTNCGGIHAAMADKDLGLINNWLLHIRDIWFKHGHLLGKLSPEKRADMLTKINVAEQVYNLGRTSIVKSAWERGQKLSLHGWVYDVNDGFLVDQGVMATSRETLEISYRNAIARLSILDEENILKKDHLENT