Figure 2
Elution profile of PA4991 from analytical size-exclusion chromatography using a Superdex 200 10/300 column (GE Healthcare) equilibrated with 25 mM Tris–HCl buffer pH 8.0 containing 150 mM NaCl. The column was calibrated with ribonuclease A (13.7 kDa), chymotrypsinogen A (25 kDa), ovalbumin (43 kDa), albumin (67 kDa) and blue dextran (2 MDa). The calibration curve is shown in the inset. |