title: Proteolytic activity in some Patagonian plants from Argentina.
abstract: Six Patagonian plants were screened for proteolytic activity: Colliguaja integerrima, Euphorbia collina, E. peplus and Stillingia patagonica (Euphorbiaceae), Philibertia gilliesii (Asclepiadaceae) and Grindelia chiloensis (Asteraceae). P. gilliesii extracts showed the highest specific activity, followed by S. patagonica and E. collina. Proteolytic activity was unnoticeable in the other three species studied. Inhibition assays revealed that P. gilliesii and S. patagonica extracts contain cysteine-type peptidases and that in E. collina serine-type peptidases are present.
authors.affiliation: LIPROVE, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 711, La PlataB 1900 ABW, Argentina.
authors.forename: Cynthia
authors.initials: C
authors.lastname: Sequeiros
authors.forename: Laura M I
authors.initials: LM
authors.lastname: López
authors.forename: Néstor O
authors.initials: NO
authors.lastname: Caffini
authors.forename: Claudia L
authors.initials: CL
authors.lastname: Natalucci
mesh_terms: D029062:Apocynaceae; D001118:Argentina; D019659:Asteraceae; D004591:Electrophoresis, Polyacrylamide Gel; D019665:Euphorbiaceae; D006801:Humans; D008519:Medicine, Traditional; D010447:Peptide Hydrolases / Q000737:chemistry*; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry*; D010946:Plants, Medicinal
chemical_list: D010936:Plant Extracts; D010447:Peptide Hydrolases