title: Characterization of an amine-reactive, heat-labile acyl residue in the fourth component of human complement, C4.
mesh_terms: D001224:Aspartic Acid / Q000032:analysis; D001665:Binding Sites; D001798:Blood Proteins / Q000494:pharmacology; D055598:Chemical Phenomena; D002621:Chemistry; D003180:Complement C3b Inactivator Proteins; D003181:Complement C4 / Q000032:analysis / Q000378:metabolism*; D015935:Complement C4b; D003169:Complement Inactivator Proteins / Q000494:pharmacology; D006358:Hot Temperature; D006801:Humans; D008744:Methylamines / Q000378:metabolism; D008970:Molecular Weight; D010446:Peptide Fragments / Q000032:analysis; D011761:Pyrrolidonecarboxylic Acid / Q000032:analysis; D013438:Sulfhydryl Compounds / Q000032:analysis
chemical_list: D001798:Blood Proteins; D003180:Complement C3b Inactivator Proteins; D003181:Complement C4; D003169:Complement Inactivator Proteins; D008744:Methylamines; D010446:Peptide Fragments; D013438:Sulfhydryl Compounds; D001224:Aspartic Acid; D015935:Complement C4b; C027451:methylamine; D011761:Pyrrolidonecarboxylic Acid