title: Purification of recombinant human prostromelysin. Studies on heat activation to give high-Mr and low-Mr active forms, and a comparison of recombinant with natural stromelysin activities.
abstract: Recombinant human prostromelysin was purified in a single step using Procion Red-Sepharose chromatography. The purified prostromelysin was self-activated to high-Mr (45,000) and low-Mr (28,000) forms by incubation at 55 degrees C without the addition of extraneous activators. The two forms of stromelysin were subsequently separated, again using Procion Red-Sepharose. Both of the heat-activated recombinant forms demonstrated similar specific activities (for the macromolecular substrates casein, gelatin, elastin, proteoglycan and type IV collagen) when compared with either heat- or trypsin-activated natural stromelysin. The heat-activated recombinant stromelysins both showed similar abilities to potentiate activation of human procollagenase when compared with trypsin-activated natural stromelysin.
authors.affiliation: Celltech Limited, Slough, U.K.
authors.forename: P A
authors.initials: PA
authors.lastname: Koklitis
authors.forename: G
authors.initials: G
authors.lastname: Murphy
authors.forename: C
authors.initials: C
authors.lastname: Sutton
authors.forename: S
authors.initials: S
authors.lastname: Angal
mesh_terms: D000595:Amino Acid Sequence; D002478:Cells, Cultured; D002846:Chromatography, Affinity / Q000379:methods; D004591:Electrophoresis, Polyacrylamide Gel; D004789:Enzyme Activation; D004792:Enzyme Precursors / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D005347:Fibroblasts / Q000201:enzymology; D005881:Gingiva / Q000201:enzymology; D006023:Glycoproteins / Q000302:isolation & purification / Q000494:pharmacology; D006358:Hot Temperature; D006801:Humans; D007700:Kinetics; D019278:Matrix Metalloproteinase 3; D008666:Metalloendopeptidases / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D008969:Molecular Sequence Data; D008970:Molecular Weight; D010446:Peptide Fragments / Q000302:isolation & purification; D011994:Recombinant Proteins / Q000302:isolation & purification / Q000378:metabolism / Q000494:pharmacology; D019714:Tissue Inhibitor of Metalloproteinases
chemical_list: D004792:Enzyme Precursors; D006023:Glycoproteins; D010446:Peptide Fragments; D011994:Recombinant Proteins; D019714:Tissue Inhibitor of Metalloproteinases; D008666:Metalloendopeptidases; C048047:prostromelysin; D019278:Matrix Metalloproteinase 3