. . . . . . . . . . . . . . "a(SCHEM:Tretinoin) -> kin(p(SFAM:\"RPS6KA Family\"))" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "20131211" . "We found that RA rapidly activates the protein kinase Calpha isozyme and transmits the activation signal to CREB via the Raf/MEK/extracellular signal-regulated kinase/p90 ribosomal S6 kinase (RSK) pathway" . . "Selventa" . . . . "2014-07-03T14:33:11.998+02:00"^^ . . .