1YK9:
reference: A Structural Basis for the Role of Nucleotide Specifying Residues in Regulating the Oligomerization of the Rv1625c Adenylyl Cyclase from M.tuberculosis., Ketkar AD, Shenoy AR, Ramagopal UA, Visweswariah SS, Suguna K, J Mol Biol. 2005 Dec 22;. PMID: 16403515

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