PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6180371-4 1982 In plasma pretreated with methylamine-HCl (an inactivator of alpha 2M), the arginine esterase was 95% sensitive to inhibition by STI. serum sodium transport inhibitor 129-132 alpha-2-macroglobulin Homo sapiens 61-69