6YP4:
reference: Crystal structure and enzymatic characterization of the putative adenylyl cyclase HpAC1 from Hippeastrum reveal dominant triphosphatase activity., Kleinboelting S, Miehling J, Steegborn C, J Struct Biol. 2020 Oct 16;212(3):107649. doi: 10.1016/j.jsb.2020.107649. PMID: 33075486

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