The N domain of Smad7 is essential for specific inhibition of transforming growth factor-beta signaling
Hanyu A, Ishidou Y, Ebisawa T, Shimanuki T, Imamura T, Miyazono K.
J Cell Biol. 2001 Dec 10;155(6):1017-27. Epub 2001 Dec 10.
PMID:11739411 PMCID:PMC2150897 DOI:10.1083/jcb.200106023