| Literature DB >> 18588885 |
Yuto Kamiya1, Kohei Miyazono, Keiji Miyazawa.
Abstract
In mammals, two inhibitory Smads (I-Smads), Smad6 and Smad7, play pivotal roles in negative regulation of TGF-beta family signaling. Smad7 ubiquitously inhibits TGF-beta family signaling, whereas Smad6 inhibits signaling from the ALK-3/6 subfamily in preference to that from the ALK-1/2 and ALK-4/5/7 subfamilies of TGF-beta family type I receptors. In Drosophila, only one I-Smad, Dad, has been identified. Here we examined inhibitory effects of Dad on type I receptors in Drosophila. Dad inhibited Saxophone (ALK-1/2 orthologue) and Thickveins (ALK-3/6 orthologue) but not Baboon (ALK-4/5/7 orthologue). The differential modes of action of I-Smads in mammals and Drosophila are discussed.Entities:
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Year: 2008 PMID: 18588885 DOI: 10.1016/j.febslet.2008.05.052
Source DB: PubMed Journal: FEBS Lett ISSN: 0014-5793 Impact factor: 4.124