Deep learning-based method for predicting and classifying the binding affinity of protein-protein complexes

Copyright © 2023 Elsevier B.V. All rights reserved..

Protein-protein interactions (PPIs) play a critical role in various biological processes. Accurately estimating the binding affinity of PPIs is essential for understanding the underlying molecular recognition mechanisms. In this study, we employed a deep learning approach to predict the binding affinity (ΔG) of protein-protein complexes. To this end, we compiled a dataset of 903 protein-protein complexes, each with its corresponding experimental binding affinity, which belong to six functional classes. We extracted 8 to 20 non-redundant features from the sequence information as well as the predicted three-dimensional structures using feature selection methods for each protein functional class. Our method showed an overall mean absolute error of 1.05 kcal/mol and a correlation of 0.79 between experimental and predicted ΔG values. Additionally, we evaluated our model for discriminating high and low affinity protein-protein complexes and it achieved an accuracy of 87% with an F1 score of 0.86 using 10-fold cross-validation on the selected features. Our approach presents an efficient tool for studying PPIs and provides crucial insights into the underlying mechanisms of the molecular recognition process. The web server can be freely accessed at https://web.iitm.ac.in/bioinfo2/DeepPPAPred/index.html.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:1871

Enthalten in:

Biochimica et biophysica acta. Proteins and proteomics - 1871(2023), 6 vom: 01. Nov., Seite 140948

Sprache:

Englisch

Beteiligte Personen:

Nikam, Rahul [VerfasserIn]
Yugandhar, Kumar [VerfasserIn]
Gromiha, M Michael [VerfasserIn]

Links:

Volltext

Themen:

Binding affinity prediction
Deep learning
Gibbs free energy
Journal Article
Protein-protein interaction
Proteins
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 13.09.2023

Date Revised 13.10.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.bbapap.2023.140948

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM360669638