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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Graded effect of tailless on posterior gut development: molecular basis of an allelic series of a nuclear receptor gene.

By marking cells of early gastrula stage embryos, we showed that in embryos mutant for a strong tll allele the fate map is shifted posteriorly and the hindgut anlage is deleted. We therefore used aspects of hindgut development to characterize the phenotype of new and previously described tll alleles. In embryos mutant for the various alleles, relative levels of blastoderm expression of Trg (T-related gene, required to establish the hindgut) and of mature hindgut size were determined; the results of these assays correlated with each other. Of the alleles that map to the sequence encoding the Tailless nuclear receptor protein, all (four) affect the zinc fingers of the DNA binding domain; surprisingly, substitutions of highly conserved residues allow a range of activities as detected by our bioassays.[1]

References

  1. Graded effect of tailless on posterior gut development: molecular basis of an allelic series of a nuclear receptor gene. Diaz, R.J., Harbecke, R., Singer, J.B., Pignoni, F., Janning, W., Lengyel, J.A. Mech. Dev. (1996) [Pubmed]
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