has_affected_feature is_expression_variant_of This relation links an expression-variant gene instance (targeted or transgenic) to the class of gene that it preresents. For transient transgenes, this is the gene, the coding sequence need only to contain as part an expressed region from a given gene to stand in an is_expression_variant_of relation to the gene class. A relation between an expression-variant gene (ie integrated transgenes or knockdown reagent targeted genes), and the class of gene it represents. Domain = expression variant feature. Range = punned gene class has_expression_variant