PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1831388-7 1991 Kinetic analysis with 125I-labeled IL-1 alpha revealed that the average binding affinity of these IL-1 alpha-specific IgGs was 4.7 x 10(10) M-1. Iodine-125 22-26 interleukin 1 alpha Homo sapiens 35-45 1831388-7 1991 Kinetic analysis with 125I-labeled IL-1 alpha revealed that the average binding affinity of these IL-1 alpha-specific IgGs was 4.7 x 10(10) M-1. Iodine-125 22-26 interleukin 1 alpha Homo sapiens 98-108