tokens: Functional studies which introduced a mutation in the AP2 core binding region as well as cotransfection experiments using an AP2 expression vector revealed that AP2 exerts a repressive role on the HGF gene promoter activity .
folded_tokens: functional study which introduce a mutation in the ap2 core binding region as well as cotransfection experiment use a ap2 expression vector reveal that ap2 exert a repressive role on the hgf gene promoter activity .