Supporting Figure 7

Fig. 7. TβRI(AAD) or TβRII(ΔCyt) transgenes are expressed during all stages of mammary gland development. RNase protection analyses using TβRI or TβRII antisense riboprobes were performed on tissue RNA isolated from different stages of mammary gland development. A β-actin antisense riboprobe was included to control for the amount of RNA in each hybridization reaction. M.Gl., mammary gland; Lact. M.Gl., lactating mammary gland. Undig. Riboprobes refers to the full-length riboprobes that have not been subjected to RNase digestion. Sizes (in nt) of DNA markers are indicated.