This strain expresses the tetracycline-controlled transactivator protein (tTA) under the regulatory control of the rat alpha myosin heavy chain promoter, which directs expression of tTA, specifically, in cardiac myocytes. When these Myh6-tTA (also called 2.9alphatTA or MHCAtTA) transgenic mice are mated to a second transgenic strain carrying a gene of interest coupled to a tetracycline-responsive promoter element (TRE), conditional expression of the target gene in cardiac myocytes may be controlled by the administration of tetracycline or doxycycline.

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This strain may be useful for generating conditional expression of target genes in cardiac myocytes.

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FVB.Cg-Tg(Myh6-tTA)6Smbf/J Frozen Embryos