HCPs in biologic drugs are complex mixtures of proteins, and a comprehensive understanding of the composition of HCPs and their molecular properties can well facilitate the design of purification processes for biologics. A proteomic analysis method, two-dimensional differential gel electrophoresis (2D DIGE), which can analyze the composition of HCPs produced by cell cultures in biologic products by comparing spot patterns. https://qbd.creative-diagnosti....cs.com/services/2d-d