. . . . . . . . . . . . . . . . "kin(p(HGNC:MAPK3)) => p(HGNC:ELK1,pmod(P,S,389))" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "20131211" . "This substrate (ELK1) could be phosphorylated to a stoichiometry of 3.3 mol of phosphate by incubation with homogeneous ERKI, consistent with the presence of at least four phosphorylation sites....Peptide B contained only one serine, thus pinpointing the phosphorylation site S389.....S324 and S422 are inferred as the phosphorylated sites in peptides D and E, respectively. These peptides were highly purified and each contained exclusively serine phosphate. C appeared to contain only one serine, thus strongly suggesting that S383 is also a site.....The phosphopeptide maps also demonstrate phosphorylation of T336, not identified previously by peptide sequencing." . . "Selventa" . . . . "2014-07-03T14:33:47.075+02:00"^^ . . .