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Computational Engineering of Protein L to Achieve an Optimal Affinity Chromatography Resin for Purification of Antibody Fragments Publisher



Rahmati S1 ; Torkashvand F1 ; Amanlou M2 ; Bagherzadeh K3, 4 ; Fard Esfahani P5 ; Aghamirza Moghim Aliabadi H1 ; Vaziri B1
Authors

Source: Analytical Chemistry Published:2021


Abstract

Protein L affinity chromatography is a useful method for the purification of antibody fragments containing kappa light chains. In affinity chromatography, increasing the binding affinity leads to increased product purity, recovery, and dynamic binding capacity (DBC). In this study, molecular docking and molecular dynamics simulation techniques were used to design the engineered Protein L with higher affinity to the kappa light chain. Each engineered ligand was produced as a recombinant protein and coupled to a solid matrix. The purity, recovery, and DBC of the engineered resins were evaluated and then compared to those of a commercially available resin. The results showed important parameters for engineering more efficient Protein L ligands for affinity chromatography. ©