11BG:
reference: A potential allosteric subsite generated by domain swapping in bovine seminal ribonuclease., Vitagliano L, Adinolfi S, Sica F, Merlino A, Zagari A, Mazzarella L, J Mol Biol 1999 Oct 29;293(3):569-77. PMID: 10543951

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