PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2318379-0 1990 Effect of buffer systems and pHi on the measurement of [Ca2+]i with fura 2. Fura-2 68-74 glucose-6-phosphate isomerase Rattus norvegicus 29-32 2318379-7 1990 It was found that measurements of [Ca2+]i with fura 2 were influenced by shifts in pHi that occur when cells are incubated in either HEPES-buffered or CO2/HCO3- media of differing pHo values. Fura-2 47-53 glucose-6-phosphate isomerase Rattus norvegicus 83-86