Recent developments in engineering protein–protein interactions using phage display release_6o7exmpac5f6nnlif2xhkouxpy

by Chen T Liang, Olivia M A Roscow, Wei Zhang

Published in Protein Engineering Design & Selection by Oxford University Press (OUP).

2021   Volume 34

Abstract

<jats:title>Abstract</jats:title> Targeted inhibition of misregulated protein–protein interactions (PPIs) has been a promising area of investigation in drug discovery and development for human diseases. However, many constraints remain, including shallow binding surfaces and dynamic conformation changes upon interaction. A particularly challenging aspect is the undesirable off-target effects caused by inherent structural similarity among the protein families. To tackle this problem, phage display has been used to engineer PPIs for high-specificity binders with improved binding affinity and greatly reduced undesirable interactions with closely related proteins. Although general steps of phage display are standardized, library design is highly variable depending on experimental contexts. Here in this review, we examined recent advances in the structure-based combinatorial library design and the advantages and limitations of different approaches. The strategies described here can be explored for other protein–protein interactions and aid in designing new libraries or improving on previous libraries.
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