PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2280412-4 1990 However, a small amount of phosphate (17%) was detected in a light chain peptide phosphorylated by protein kinase C. Endothelin-1 also stimulated phosphorylation of the thin filament protein, caldesmon, (from 0.35 mol PO4/mol caldesmon to 0.52 mol PO4/mol). po4 218-221 endothelin 1 Homo sapiens 117-129 2280412-4 1990 However, a small amount of phosphate (17%) was detected in a light chain peptide phosphorylated by protein kinase C. Endothelin-1 also stimulated phosphorylation of the thin filament protein, caldesmon, (from 0.35 mol PO4/mol caldesmon to 0.52 mol PO4/mol). po4 248-251 endothelin 1 Homo sapiens 117-129