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)^[2][3] and expands that idea to non-supervised orthologous groups constructed from numerous organisms.^[4] The database was created in 2007^[5] and updated to version 4.5 in 2015.^[1] eggNOG stands for evolutionary genealogy of genes: Non-supervised Orthologous Groups.

eggNOG

Content
Description	Database of orthologous proteins and functional annotations at multiple taxonomical levels.
Contact
Research center	European Molecular Biology Laboratory
Authors	Huerta-Cepas et al.
Primary citation	Huerta-Cepas et al. (2015)[1]
Release date	2015
Access
Website	http://eggnogdb.embl.de