. . . . . . . . . . . . . "a(CHEBI:histamine) -> cat(p(HGNC:HRH2))" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "1.4" . "The histamine H2 receptor (H2r) belongs to the heptahelical receptor family; upon agonist binding, members of this family activate a G protein and the downstream effector adenylyl cyclase" . . "Selventa" . . . . "2014-07-03T14:29:58.721+02:00"^^ . . .