EggNOG (database)

The eggNOG database is a database of biological information hosted by the EMBL. It is based on the original idea of COGs (clusters of orthologous groups) and expands that idea to non-supervised orthologous groups constructed from  numerous organisms. The database was created in 2007 and updated to version 4.5 in 2015. eggNOG stands for  e volutionary g enealogy of g enes: N on-supervised O rthologous G roups.