Figure 2. Morphology of protein assembly varied with ionic strength and addition/removal of reducing agent. Assembly of HSA-TR (0.010 mg/mL) was investigated under four conditions:
(A) 10 mM phosphate, 30 mM NaN3, 140 mM NaCl,
(B) 10 mM phosphate, 30 mM NaN3, 500 mM NaCl,
(C) 10 mM phosphate only, and
(D) 10 mM phosphate, 30 mM dithiothreitol.
Scale bar = 20 mm