PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7688570-12 1993 These results suggest that EGF can react with the reactive thiol ester of proteinase-activated alpha 2M by nucleophilic attack of the alpha-amino group and to a lesser extent by sulfide-disulfide exchange with the free SH of the cleaved thiol ester. Sulfides 178-185 alpha-2-macroglobulin Homo sapiens 95-103