Fig. 5

Size exclusion HPLC chromatograms: A hemoglobin tetramer (64.5 kDa) (tR = 21.1 min); B soluble (in PBS 1 ×) sample protein (∼36 kDa) (tR = 23.628 min); C soluble monomer 10xHis-XaSITE-TAT-β-globin-HA (∼20.6 kDa), prior incubated with DTT for 48 h (tR = 25.6 min); D soluble monomer 10xHis-XaSITE-α-globin-HA (∼18.7 kDa), prior incubated with DTT for 48 h (tR = 25.6 min)