PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9050006-8 1997 However, binding of the beta-AR antagonist 125I-cyanopindolol revealed low levels of functional receptors, and the ligand binding properties of these receptors were altered when compared to native receptors. 125i-cyanopindolol 43-61 adrenoceptor beta 2 Homo sapiens 24-31