This package has been deprecated and will not be updated. New users should use the package 'gprofiler2' (< https://CRAN.R-project.org/package=gprofiler2>) for up-to-date data and improved functionality. Functional enrichment analysis, gene identifier conversion and mapping homologous genes across related organisms via the 'g:Profiler' toolkit (< https://biit.cs.ut.ee/gprofiler/>).