EMBER—Embedding Multiple Molecular Fingerprints for Virtual Screening

In recent years, the debate in the field of applications of Deep Learning to Virtual Screening has focused on the use of neural embeddings with respect to classical descriptors in order to encode both structural and physical properties of ligands and/or targets. The attention on embeddings with the...

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Main Authors: Isabella Mendolia, Salvatore Contino, Giada De Simone, Ugo Perricone, Roberto Pirrone
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/23/4/2156
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author Isabella Mendolia
Salvatore Contino
Giada De Simone
Ugo Perricone
Roberto Pirrone
author_facet Isabella Mendolia
Salvatore Contino
Giada De Simone
Ugo Perricone
Roberto Pirrone
author_sort Isabella Mendolia
collection DOAJ
description In recent years, the debate in the field of applications of Deep Learning to Virtual Screening has focused on the use of neural embeddings with respect to classical descriptors in order to encode both structural and physical properties of ligands and/or targets. The attention on embeddings with the increasing use of Graph Neural Networks aimed at overcoming molecular fingerprints that are short range embeddings for atomic neighborhoods. Here, we present EMBER, a novel molecular embedding made by seven molecular fingerprints arranged as different “spectra” to describe the same molecule, and we prove its effectiveness by using deep convolutional architecture that assesses ligands’ bioactivity on a data set containing twenty protein kinases with similar binding sites to CDK1. The data set itself is presented, and the architecture is explained in detail along with its training procedure. We report experimental results and an explainability analysis to assess the contribution of each fingerprint to different targets.
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spelling doaj.art-5123c6ea136e4c829fbbfdc775ac27602023-11-23T20:20:53ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-02-01234215610.3390/ijms23042156EMBER—Embedding Multiple Molecular Fingerprints for Virtual ScreeningIsabella Mendolia0Salvatore Contino1Giada De Simone2Ugo Perricone3Roberto Pirrone4Dipartimento di Ingegneria, Università degli Studi di Palermo, 90133 Palermo, ItalyDipartimento di Ingegneria, Università degli Studi di Palermo, 90133 Palermo, ItalyMolecular Informatics Group, Fondazione Ri.MED, 90133 Palermo, ItalyMolecular Informatics Group, Fondazione Ri.MED, 90133 Palermo, ItalyDipartimento di Ingegneria, Università degli Studi di Palermo, 90133 Palermo, ItalyIn recent years, the debate in the field of applications of Deep Learning to Virtual Screening has focused on the use of neural embeddings with respect to classical descriptors in order to encode both structural and physical properties of ligands and/or targets. The attention on embeddings with the increasing use of Graph Neural Networks aimed at overcoming molecular fingerprints that are short range embeddings for atomic neighborhoods. Here, we present EMBER, a novel molecular embedding made by seven molecular fingerprints arranged as different “spectra” to describe the same molecule, and we prove its effectiveness by using deep convolutional architecture that assesses ligands’ bioactivity on a data set containing twenty protein kinases with similar binding sites to CDK1. The data set itself is presented, and the architecture is explained in detail along with its training procedure. We report experimental results and an explainability analysis to assess the contribution of each fingerprint to different targets.https://www.mdpi.com/1422-0067/23/4/2156deep learningdrug designvirtual screeningembedding
spellingShingle Isabella Mendolia
Salvatore Contino
Giada De Simone
Ugo Perricone
Roberto Pirrone
EMBER—Embedding Multiple Molecular Fingerprints for Virtual Screening
International Journal of Molecular Sciences
deep learning
drug design
virtual screening
embedding
title EMBER—Embedding Multiple Molecular Fingerprints for Virtual Screening
title_full EMBER—Embedding Multiple Molecular Fingerprints for Virtual Screening
title_fullStr EMBER—Embedding Multiple Molecular Fingerprints for Virtual Screening
title_full_unstemmed EMBER—Embedding Multiple Molecular Fingerprints for Virtual Screening
title_short EMBER—Embedding Multiple Molecular Fingerprints for Virtual Screening
title_sort ember embedding multiple molecular fingerprints for virtual screening
topic deep learning
drug design
virtual screening
embedding
url https://www.mdpi.com/1422-0067/23/4/2156
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