Research Article

Different Residues on the Surface of the Methanothermobacter thermautotrophicus MCM Helicase Interact with Single- and Double-Stranded DNA

Figure 2

MCM mutant proteins retain their overall structural integrity. (a) Gel filtration analysis of wild-type and mutant proteins was performed as described in “Section 2”. The elution positions of size markers are shown: Thyroglobulin (Thy, 670,000 Da), ferritin (Fer, 440,000 Da), albumin (Alb, 67,000 Da) and ovalbumin (Ova, 45,000 Da). (b) Circular dichroism measurements were performed as described in “Section 2”.
505693.fig.002a
(a) Gel filtration
505693.fig.002b
(b) Circular dichroism