Isolation and characterization of mouse dishevelled-3.
The Drosophila dishevelled ( dsh) segment polarity gene is required to establish cell fates specified by wingless/ Wnt signal transduction during development. We have previously reported the cloning and characterization of a mouse homolog of dishevelled, Dvl1. Utilizing RT-PCR with degenerate primers, we isolated another member of the mouse Dishevelled ( Dvl) gene family, Dvl3. The Dvl3 gene maps to mouse chromosome 16. The predicted amino acid sequence shares 64 and 62% identity to Dvl1 and Dvl2, respectively. The region of highest conservation between all three Dvl coding regions, at 97% identity, is noted at the PDZ domain (also termed the DHR domain or GLGF motif), a motif of 60 amino acids present in all dishevelled encoded proteins and first described in the Drosophila discs large (dlg) tumor suppressor gene. In adult mice, Dvl3 expression is widespread with highest levels exhibited in brain, ovary, and heart. In embryos, Dvl3 is expressed in every tissue between 7.5 and 9.5 days postcoitum, and by 10.5 days postcoitum highest expression was seen in the dorsal root ganglia, somites, limb buds, branchial arches, heart, gut and throughout the developing central nervous system.[1]References
- Isolation and characterization of mouse dishevelled-3. Tsang, M., Lijam, N., Yang, Y., Beier, D.R., Wynshaw-Boris, A., Sussman, D.J. Dev. Dyn. (1996) [Pubmed]
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