. . . . . . . . . . . "a(SCHEM:Activin) -> r(HGNC:CDKN1A)" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "1.4" . "This region also mediates the transcriptional activation of the p21 promoter by members of the Smad family of proteins, which play important role in the transduction of extracellular signals such as transforming growth factor beta, activin, etc." . . "Selventa" . . . . "2014-07-03T14:30:59.940+02:00"^^ . . .