A protein with core domain composition consisting of one MH1 domain (Pfam:PF03165) at the N terminus and one MH2 domain (Pfam:PF03166) at the C-terminus, separated by a non-conserved linker region. Smad proteins are mediators of signal transduction in transforming growth factor beta (TGF-beta) superfamily pathways. [ PRO:CNA ]

This is just here as a test because I lose it

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