PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1849366-9 1991 To explore a potential role for G proteins, we examined the effect of guanine nucleotide analogues on ANP-stimulated IP3 production in saponin-permeabilized cells. Saponins 135-142 natriuretic peptide A Rattus norvegicus 102-105