1NE6:
reference: Crystal Structures of RIalpha Subunit of Cyclic Adenosine 5'-Monophosphate (cAMP)-Dependent Protein Kinase Complexed with (R(p))-Adenosine 3',5'-Cyclic Monophosphothioate and (S(p))-Adenosine 3',5'-Cyclic Monophosphothioate, the Phosphothioate Analogues of cAMP(,)., Wu J, Jones JM, Xuong NH, Eyck LF, Taylor SS, Biochemistry 2004 Jun 1;43(21):6620-6629. PMID: 15157095

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