. . . . . . . . "Impairs binding to SMAD1. Loss of ability to repress transcriptional activation in response to TGF-beta, BMP2 and activin signaling." . "703"^^ . . "704"^^ . . "Mutagenesis site occurs in NX_Q9Y2U8-1 at amino acids 703 - 704." . . . . . "neXtProt gold" . . . . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "2" . . .