6SC4:
reference: Crystal Structure and Active Site Engineering of a Halophilic gamma-Carbonic Anhydrase., Vogler M, Karan R, Renn D, Vancea A, Vielberg MT, Grotzinger SW, DasSarma P, DasSarma S, Eppinger J, Groll M, Rueping M, Front Microbiol. 2020 Apr 28;11:742. doi: 10.3389/fmicb.2020.00742. eCollection, 2020. PMID: 32411108

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