PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7782981-4 1995 Putrescine (1 mM) and spermidine (0.1 to 0.5 mM) significantly inhibited chemotaxis to fMet-Leu-Phe and C5a (P < 0.05). Spermidine 22-32 complement C5a receptor 1 Homo sapiens 104-107