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The electrostatic properties of proteins arise from the number and distribution of polar and charged residues. Electrostatic interactions in proteins play a critical role in numerous processes such as molecular recognition, protein solubility, viscosity, and antibody developability. Thus, characterizing and quantifying electrostatic properties of a protein are prerequisites for understanding these processes. Here, we present PEP-Patch, a tool to visualize and quantify the electrostatic potential on the protein surface in terms of surface patches, denoting separated areas of the surface with a common physical property. We highlight its applicability to elucidate protease substrate specificity and antibody-antigen recognition and predict heparin column retention times of antibodies as an indicator of pharmacokinetics.

Original publication

DOI

10.1021/acs.jcim.3c01490

Type

Journal

J Chem Inf Model

Publication Date

27/11/2023

Volume

63

Pages

6964 - 6971

Keywords

Static Electricity, Proteins, Antibodies, Solubility, Viscosity