"A role used to differentiate homologous proteins from different organisms. The domain and range for this role are 'Gene Product' and 'Organism', respectively.NCI" . "Gene_Product_Has_Organism_Source"^^ . "R45"^^ . . "Conceptual Entity"^^ . "Has Organism Source"^^ . "Gene_Product_Has_Organism_SourcePTNCI" . . . "Gene_Product_Has_Organism_Source"^^ .