PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9374644-2 1997 Frog muscle had two distinct types of RyRs in the SR: one showed a bell-shaped channel activation curve against cytoplasmic Ca2+ or niflumic acid, and its mean open probability (Po) was increased by perchlorate at 20-30 mM (termed "alpha-like" RyR); the other showed a sigmoidal activation curve against Ca2+ or niflumic acid, with no effect on perchlorate (termed "beta-like" RyR). perchlorate 199-210 ryanodine receptor 1 Homo sapiens 38-41 9374644-2 1997 Frog muscle had two distinct types of RyRs in the SR: one showed a bell-shaped channel activation curve against cytoplasmic Ca2+ or niflumic acid, and its mean open probability (Po) was increased by perchlorate at 20-30 mM (termed "alpha-like" RyR); the other showed a sigmoidal activation curve against Ca2+ or niflumic acid, with no effect on perchlorate (termed "beta-like" RyR). perchlorate 199-210 ryanodine receptor 1 Homo sapiens 244-247