Background - Traditional gene set enrichment analyses are typically limited to a few ontologies and do not account for the interdependence of gene sets or terms, resulting in overcorrected p-values. To address these challenges, we introduce mulea, an R package offering comprehensive overrepresentation and functional enrichment analysis. Results - mulea employs a progressive empirical false discovery rate (eFDR) method, specifically designed for interconnected biological data, to accurately identify significant terms within diverse ontologies. mulea expands beyond traditional tools by incorporating a wide range of ontologies, encompassing Gene Ontology, pathways, regulatory elements, genomic locations, and protein domains. This flexibility enables researchers to tailor enrichment analysis to their specific questions, such as identifying enriched transcriptional regulators in gene expression data or overrepresented protein domains in protein sets. To facilitate seamless analysis, mulea provides gene sets (in standardised GMT format) for 27 model organisms, covering 22 ontology types from 16 databases and various identifiers resulting in almost 900 files. Additionally, the muleaData ExperimentData Bioconductor package simplifies access to these pre-defined ontologies. Finally, mulea's architecture allows for easy integration of user-defined ontologies, or GMT files from external sources (e.g., MSigDB or Enrichr), expanding its applicability across diverse research areas. Conclusions - mulea is distributed as a CRAN R package. It offers researchers a powerful and flexible toolkit for functional enrichment analysis, addressing limitations of traditional tools with its progressive eFDR and by supporting a variety of ontologies. Overall, mulea fosters the exploration of diverse biological questions across various model organisms.
Version: 1.1.1 Depends: R (≥ 4.0.0) Imports: data.table (≥ 1.13.0), dplyr, fgsea (≥ 1.0.2), ggplot2, ggraph (≥ 2.0.3), magrittr (≥ 2.0.3), methods, parallel (≥ 4.0.2), plyr (≥ 1.8.4), Rcpp, readr, rlang, scales, stats, stringi, tibble, tidygraph, tidyverse LinkingTo: Rcpp Suggests: devtools, knitr, rmarkdown, testthat (≥ 3.1.4) Published: 2024-11-19 DOI: 10.32614/CRAN.package.mulea Author: Cezary Turek [aut], Marton Olbei [aut], Tamas Stirling [aut, cre], Gergely Fekete [aut], Ervin Tasnadi [aut], Leila Gul [aut], Balazs Bohar [aut], Balazs Papp [aut], Wiktor Jurkowski [aut], Eszter Ari [aut, cph] Maintainer: Tamas Stirling <stirling.tamas at gmail.com> BugReports: https://github.com/ELTEbioinformatics/mulea/issues License: GPL-2 URL: https://github.com/ELTEbioinformatics/mulea NeedsCompilation: yes Citation: mulea citation info Materials: NEWS CRAN checks: mulea results Documentation: Downloads: Linking:Please use the canonical form https://CRAN.R-project.org/package=mulea to link to this page.
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