PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10919286-6 2000 Moreover, binding sites for endothelin-1 were increased, and the calcium response to the contractile agonist, determined in single fura-2-loaded cells, was enhanced. Fura-2 131-137 endothelin 1 Rattus norvegicus 28-40