The output of g:Convert is a table with converted IDs, gene names and corresponding gene descriptions. Users can also retrieve the list of genes associated to any terms used in g:GOSt (such as Reactome pathways, HPA or GO biological process category). Other services, such as the Ensembl Biomart (26), or Uniprot mapping service (27) include similar range of identifiers. However, g:Convert accepts a mixture of identifiers and does not demand specifying original identifier type first by the user. This improves the interoperability and helps to connect external services beyond the g:Profiler toolset.