PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 606443-7 1977 Treatment of C3b with antrypol inhibited the formation of the enzyme. Suramin 22-30 complement C3 Homo sapiens 13-16 845446-3 1977 Suramin (1 mg/ml) completely blocked homologous C3b inactivation by heated human, guinea pig and mouse serum, and 0.1 mg/ml was effective with mouse but not with human or guinea pig serum. Suramin 0-7 complement C3 Homo sapiens 48-51