title: Human complement serine proteases C1r and C1s and their proenzymes.
authors.affiliation: Institut de Biologie Structurale, Laboratoire d'Enzymologie Moléculaire, Grenoble, France.
authors.forename: G J
authors.initials: GJ
authors.lastname: Arlaud
authors.forename: N M
authors.initials: NM
authors.lastname: Thielens
mesh_terms: D000818:Animals; D002848:Chromatography, DEAE-Cellulose / Q000379:methods; D015923:Complement C1r / Q000032:analysis* / Q000302:isolation & purification* / Q000378:metabolism; D003173:Complement C1s / Q000032:analysis* / Q000302:isolation & purification* / Q000378:metabolism; D004789:Enzyme Activation; D004792:Enzyme Precursors / Q000032:analysis* / Q000302:isolation & purification* / Q000378:metabolism; D004795:Enzyme Stability; D006461:Hemolysis; D006801:Humans; D007202:Indicators and Reagents; D007700:Kinetics; D010446:Peptide Fragments / Q000302:isolation & purification; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013379:Substrate Specificity
chemical_list: D004792:Enzyme Precursors; D007202:Indicators and Reagents; D010446:Peptide Fragments; D015923:Complement C1r; D003173:Complement C1s