PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1839505-7 1991 Neutralization experiments, immunoblotting, and western blotting obtained after transfer from SDS-PAGE revealed that anti-IL-1ra does not recognize the M20 IL-1 inhibitor. Sodium Dodecyl Sulfate 94-97 interleukin 1 receptor antagonist Homo sapiens 122-128