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Solution structure of the mdP2ab (P2a–J2a/b–P2b). (A) Sequence and secondary structure of predicted (Left) and observed (Right) mdP2ab. (B) Superposition of the 20 lowest-energy structures over all heavy atoms and space-filling rendering of the lowest-energy structure of P2ab. (C) Comparison of the lowest-energy structure of mdP2ab (Left) and hP2ab (PDB ID code 2L3E) (Right). In all panels, P2a is gold, J2a/b is green, P2b is red, and the UUCG tetraloop is gray.
