PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 814163-8 1976 Activation of C1s by C1r was inhibited by calcium, C1 inactivator, polyanethol sulfonate, and DFP. Isoflurophate 94-97 complement C1s subcomponent Ovis aries 14-17