PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19821046-2 2010 The transgene was constructed in a way that a CMV enhancer linked to the chicken beta-actin promoter (CAG) drives the expression of the tetracycline-controlled transactivator (tTA) in particular tissues upon Cre-mediated excision of a floxed betageo marker located between the promoter and the tTA. Tetracycline 136-148 actin, beta Gallus gallus 81-91