Smad Proteins

**Definition:** A family of proteins that are involved in the translocation of signals from TGF-BETA RECEPTORS; BONE MORPHOGENETIC PROTEIN RECEPTORS; and other surface receptors to the CELL NUCLEUS. They were originally identified as a class of proteins that are related to the mothers against decapentaplegic protein, Drosophila and sma proteins from CAENORHABDITIS ELEGANS.

**Tree numbers:** - D12.644.360.024.334 - D12.776.157.057.170 - D12.776.260.713 - D12.776.476.024.428 - D12.776.930.806

**Synonyms:** - Sma- and Mad-Related Proteins - Mothers Against Decapentaplegic Homolog