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. 2021 Jan 25;20:24. doi: 10.1186/s12934-021-01514-5

Fig. 4.

Fig. 4

Screening the IEX chromatography media for purification of PPV VLPs. Cation exchange resins screen was performed using the KM-PPV-VP2 cell lysates that were disrupted with PBS buffer pH7.4 PBS and acidified to pH 4.0 with acetic acid. For anion exchange resins, samples were prepared by using 20 mM Tris-HCl as the buffer to suspend and disrupt the KM-PPV-VP2 cells. Lane F: flowthrough fractions; Lane E: elution fractions