title: Invertebrate alpha 2-macroglobulin: structure-function and the ancient thiol ester bond.
authors.affiliation: Marine Biological Laboratory Woods Hole, Massachusetts 02543.
authors.forename: J P
authors.initials: JP
authors.lastname: Quigley
authors.forename: P B
authors.initials: PB
authors.lastname: Armstrong
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D003602:Cytotoxicity, Immunologic; D010450:Endopeptidases / Q000378:metabolism; D004952:Esters / Q000737:chemistry; D006461:Hemolysis / Q000276:immunology; D006737:Horseshoe Crabs / Q000235:genetics / Q000276:immunology / Q000378:metabolism; D006801:Humans; D007448:Invertebrates / Q000235:genetics / Q000276:immunology* / Q000378:metabolism; D008969:Molecular Sequence Data; D017386:Sequence Homology, Amino Acid; D013329:Structure-Activity Relationship; D013438:Sulfhydryl Compounds / Q000737:chemistry; D000511:alpha-Macroglobulins / Q000737:chemistry / Q000235:genetics / Q000276:immunology*
chemical_list: D004952:Esters; D013438:Sulfhydryl Compounds; D000511:alpha-Macroglobulins; D010450:Endopeptidases