PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10961736-5 1999 Similar studies in rabbit brain membranes found that prazosin and oxymetazoline were able to displace [3H]-RX821002 in a biphasic manner indicating the presence of subtypes of alpha2-adrenoceptors. Prazosin 53-61 adrenoceptor alpha 2A Rattus norvegicus 176-196