. . . . . . . . . . . . . "tscript(p(HGNC:ATF4)) -> bp(GO:\"cell differentiation\")" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "1.4" . "We identify the transcription factor ATF4 as a critical substrate of RSK2 that is required for the timely onset of osteoblast differentiation" . . "Selventa" . . . . "2014-07-03T14:30:22.885+02:00"^^ . . .