Department of Bioinformatics - BiGCaT, Maastricht University, P.O. Box 616, UNS 50 Box 19, 6200, MD, Maastricht, The Netherlands. anwesha.dutta@maastrichtuniversity.nl.|Department of Bioinformatics - BiGCaT, Maastricht University, P.O. Box 616, UNS 50 Box 19, 6200, MD, Maastricht, The Netherlands. l.eijssen@maastrichtuniversity.nl.|General Bioinformatics, Reading, Berkshire, RG4 7RT, UK. mvaniersel@gmail.com.|Department of Bioinformatics - BiGCaT, Maastricht University, P.O. Box 616, UNS 50 Box 19, 6200, MD, Maastricht, The Netherlands. christleemans@gmail.com.|Department of Bioinformatics - BiGCaT, Maastricht University, P.O. Box 616, UNS 50 Box 19, 6200, MD, Maastricht, The Netherlands. egon.willighagen@maastrichtuniversity.nl.|Department of Bioinformatics - BiGCaT, Maastricht University, P.O. Box 616, UNS 50 Box 19, 6200, MD, Maastricht, The Netherlands. martina.kutmon@maastrichtuniversity.nl.|Bioinformatics Research Department, BioMérieux S.A, 69280, Marcy lEtoile, France. magali.dancette@biomerieux.com.|Department of Bioinformatics - BiGCaT, Maastricht University, P.O. Box 616, UNS 50 Box 19, 6200, MD, Maastricht, The Netherlands. chris.evelo@maastrichtuniversity.nl.