Crystal Structures of HbA <sub/>2</sub> and HbE and Modeling of Hemoglobin δ <sub/>4</sub> :  Interpretation of the Thermal Stability and the Antisickling Effect of HbA <sub/>2</sub> and Identification of the Ferrocyanide Binding Site in Hb ^‡Sen, Udayaditya; Dasgupta, Jhimli; Choudhury, Debi; Datta, Poppy; Chakrabarti, Abhijit; Chakrabarty, Sudipa Basu; Chakrabarty, Amit; Dattagupta, Jiban K. · Biochemistry · 2004