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Fig. 6. Conservation of SBE4 sequence and function. (A) Vista plots
comparing the alignment of human SBE4 sequences with mouse, chicken, frog and
tetraodon. (B) Comparison of the distance between SBE4 and the
Shh transcription start site in human, mouse, chicken, frog and
tetraodon. (C-E) SBE4 reporter activity derived from (C) chicken, (D)
frog and (E) pufferfish sequences. The ratio of embryos exhibiting
reproducible Shh-like reporter activity over the total number of
transgenic embryos is indicated for each construct (C-E).