ArticleJournal of computer-aided molecular design2015
Insight into the modified Ibalizumab-human CD4 receptor interactions: using a computational binding free energy approach.
Article in Journal of computer-aided molecular design, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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2 authors at 1 institution in 1 country.
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Abstract
Antibody drugs are very useful tools for the treatment of many chronic diseases. Recently, however, patients and doctors have encountered the problem of drug resistance. How to improve the affinity of antibody drugs has therefore become a pressing issue. Ibalizumab is a humanized monoclonal antibody that binds human CD4, the primary receptor for human immunodeficiency virus type 1. This study investigates the mutation residues of the complementarity determining regions of Ibalizumab. We propose using the wild and mutations of Ibalizumab-human CD4 receptor complex structures, molecular dynamics techniques, alanine-scanning mutagenesis calculations and solvated interaction energies methods to predict the binding free energy of the Ibalizumab-human CD4 receptor complex structures. This work found that revealed three key positions (31th, 32th and 33th in HCDR-1) of the residues may play an important role in Ibalizumab-human CD4 receptor complex interactions. Therefore, bioengineering substitutions of the three key positions and increasing number of intermolecular interactions (HCDR-1 of Ibalizumab/human CD4 receptor) might improve the binding affinities of this complex structure.
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