title: Occurrence of an extracellular serineproteinase among Staphylococcus aureus strains.
mesh_terms: D010450:Endopeptidases / Q000096:biosynthesis / Q000378:metabolism*; D012694:Serine; D013211:Staphylococcus aureus / Q000201:enzymology*
chemical_list: D012694:Serine; D010450:Endopeptidases