>7C5W_1|Chains A, B|iota-carbonic anhydrase|Nostoc sp. PCC 7120 = FACHB-418 (103690) GSHDSGDKITATSSLKTPIVNRAITESEVLAAQKAWGEALVAISTTYDAKGKASAKALAEKVIDDAYGYQFGPVLFKPTLAISPRTFRTTRAGALAYFVGDDKAFPEDKGFALSSWRKVEIKNAAIFITGNTATTMGNVIITDKQGKATTVDKTWQFLKDDHGKLRIITHHSSLPYEQ