Title
DeepMP: a deep learning tool to detect DNA base modifications on Nanopore sequencing data
Abstract
Motivation: DNA methylation plays a key role in a variety of biological processes. Recently, Nanopore long-read sequencing has enabled direct detection of these modifications. As a consequence, a range of computational methods have been developed to exploit Nanopore data for methylation detection. However, current approaches rely on a human-defined threshold to detect the methylation status of a genomic position and are not optimized to detect sites methylated at low frequency. Furthermore, most methods use either the Nanopore signals or the basecalling errors as the model input and do not take advantage of their combination. Results: Here, we present DeepMP, a convolutional neural network-based model that takes information from Nanopore signals and basecalling errors to detect whether a given motif in a read is methylated or not. Besides, DeepMP introduces a threshold-free position modification calling model sensitive to sites methylated at low frequency across cells. We comprehensively benchmarked DeepMP against state-of-the-art methods on Escherichia coli, human and pUC19 datasets. DeepMP outperforms current approaches at read-based and position-based methylation detection across sites methylated at different frequencies in the three datasets. Availability and implementation: DeepMP is implemented and freely available under MIT license at https://github.
Year
DOI
Venue
2022
10.1093/bioinformatics/btab745
BIOINFORMATICS
DocType
Volume
Issue
Journal
38
5
ISSN
Citations 
PageRank 
1367-4803
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Jose Bonet100.68
Mandi Chen200.34
Marc Dabad300.34
Simon Heath400.34
Abel Gonzalez-Perez5334.00
Nuria Lopez-Bigas6677.47
Jens Lagergren700.34