MeSH definition : A receptor-regulated smad protein that undergoes PHOSPHORYLATION by ACTIVIN RECEPTORS,
TYPE I. Activated Smad3 can bind directly to DNA, and it regulates TRANSFORMING GROWTH
FACTOR BETA and ACTIVIN signaling.;
A receptor-regulated smad protein that undergoes PHOSPHORYLATION by ACTIVIN RECEPTORS,
TYPE I. Activated Smad3 can bind directly to DNA, and it regulates TRANSFORMING GROWTH
FACTOR BETA and ACTIVIN signaling.