1V4W:
reference: Novel Mechanisms of pH Sensitivity in Tuna Hemoglobin: A STRUCTURAL EXPLANATION OF THE ROOT EFFECT., Yokoyama T, Chong KT, Miyazaki G, Morimoto H, Shih DT, Unzai S, Tame JR, Park SY, J Biol Chem 2004 Jul 2;279(27):28632-40. Epub 2004 Apr 26. PMID: 15117955

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