2-O,3-dimethylflaviolin + (2E)-geranyl diphosphate + H(+) <=> 7-O-geranyl-2-O,3-dimethylflaviolin + diphosphate
2-o,3-dimethylflaviolin + (2e)-geranyl diphosphate + h(+) <=> 7-o-geranyl-2-o,3-dimethylflaviolin + diphosphate