. . . . . . . . . . . . . . "a(CHEBI:histamine) => cat(p(HGNC:HRH1))" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "20131211" . "Histamine is synthesized and released by human basophils, mast cells, and neurons. Its pleiotropic effects are mediated by the activation of 4 receptors: H(1), H(2), H(3), and H(4)." . . "Selventa" . . . . "2014-07-03T14:32:09.920+02:00"^^ . . .