PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11294244-5 2001 The BK channel was inhibited reversibly by external tetraethylammonium (TEA) ions, charybdotoxin, and quinine and was resistant to block by 4-aminopyridine and apamin. Charybdotoxin 83-96 potassium calcium-activated channel subfamily M alpha 1 Rattus norvegicus 4-14