. . . . . . . . . . . "a(SCHEM:Tretinoin) -> r(HGNC:PPP2R5D)" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "20131211" . "Two isoforms (B56beta and B56delta) are highly expressed in adult brain; here we show that mRNA for these isoforms increases severalfold when neuroblastoma cell lines are induced to differentiate by retinoic acid treatment." . . "Selventa" . . . . "2014-07-03T14:33:52.258+02:00"^^ . . .