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. Author manuscript; available in PMC: 2015 Nov 17.
Published in final edited form as: Dev Biol. 2008 Jan 3;315(2):317–330. doi: 10.1016/j.ydbio.2007.12.038

Figure 4.

Figure 4

The RA response element in Tr-mespb. (A) Diagram showing the portions of the Tr-mespb regulatory sequences surrounding the RARE (green box) that were appended to the 5′ end of the Xenopus stripe enhancer (Xl-mespb-Stu). (B-K) Xenopus embryos transgenic for the indicated constructs were untreated (top panels) or treated (bottom panels) with RA for two hrs at RT and stained for GFP expression using whole-mount in situ hybridization. Numbers given are (# with phenotype shown)/(# expressing GFP). Anterior is to the left in all panels.