Figure 4
From: OGO: an ontological approach for integrating knowledge about orthology
Graphical representation of an example of mapping rules for KOG. The information in KOG is divided in two files: kog.txt and kyva=gb.txt. A mapping rule was defined for connecting orthology cluster information from kog.txt to gene and protein information from kyva=gb.txt. On the other hand, the other mapping rules link this orthology information to the OGO ontology. So cel:CE10552 from kog.txt is connected with CE10552 17507351 from kyva=gb.txt and also the fields of both files are mapped to the corresponding concepts in the OGO ontology.