A highly conserved novel family of mammalian developmental transcription factors related to Drosophila grainyhead.

作者: Tomasz Wilanowski , Annabel Tuckfield , Loretta Cerruti , Sinead O'Connell , Robert Saint

DOI: 10.1016/S0925-4773(02)00046-1

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摘要: The Drosophila transcription factor Grainyhead regulates several key developmental processes. Three mammalian genes, CP2, LBP-1a and LBP-9 have been previously identified as homologues of grainyhead. We now report the cloning two new genes (Mammalian grainyhead (MGR) Brother-of-MGR (BOM)) one gene (dCP2) that rewrite phylogeny this family. demonstrate MGR BOM are more closely related to grh, whereas descendants dCP2 gene. shares greatest sequence homology with is expressed in tissue-restricted patterns comparable grh binds transactivates promoter human Engrailed-1 gene, homologue target engrailed. This functional conservation indicates members family play important roles.

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