ABTrans: A Transformer-based model for predicting interaction between anti-Aß antibodies and peptides

Author:

Su Yuhong,Zhang Lingfeng,Wang YangjingORCID,Ma BuyongORCID

Abstract

AbstractUnderstanding the recognition of antibodies and Aβ peptide is crucial for the development of more effective therapeutic agents. Here we studied the interaction between anti-Aβ antibodies and different peptides by building a deep learning model, using the dodecapeptide sequences elucidated from phage display and known anti-Aβ antibody sequences collected from public sources. Our multi-classification model, ABTrans was trained to determine the four levels of binding ability between anti-Aβ antibody and dodecapeptide: not binding, weak binding, medium binding, and strong binding. The accuracy of our model reached 0.8278. Using the ABTrans, we examined the cross-reaction of anti-Aβ antibodies with other human amyloidogenic proteins, and we found that Aducanumab and Donanemab have the least cross-reactions with other human amyloidogenic proteins. We also systematically screened all human proteins interaction with eleven selected anti-Aβ antibodies to identify possible peptide fragments that could be an off-target candidate.Key PointsABTrans is a Transformer-based model that was developed for the first time to predict the interaction between anti-Aß antibodies and peptides.ABTrans was trained using a dataset with 1.5 million peptides and 110 anti-Aβ antibodies.ABTrans achieved an accuracy of 0.8278 and is capable of determining the four levels of binding ability between antibody and Aß: not binding, weak binding, medium binding, and strong binding.ABTrans has potential applications in predicting off-target and cross-reactivity effects of antibodies and in designing new anti-Aß antibodies.

Publisher

Cold Spring Harbor Laboratory

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