PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 14688202-5 2004 In the presence of PDBu, higher concentrations of Iso inhibited the histamine stimulated ICa,L, and this effect was blocked by a selective beta1-AR antagonist. Histamine 68-77 beta-1 adrenergic receptor Cavia porcellus 139-147