title: Isolation and properties of proteolytic enzymes of Streptomyces erythreus. I. Isolation of crude enzyme preparation.
mesh_terms: D000645:Ammonium Sulfate; D001426:Bacterial Proteins / Q000378:metabolism; D002474:Cell-Free System; D011232:Chemical Precipitation; D003470:Culture Media; D003956:Dialysis; D005374:Filtration; D005612:Freeze Drying; D008722:Methods; D010447:Peptide Hydrolases / Q000096:biosynthesis / Q000302:isolation & purification* / Q000378:metabolism; D013302:Streptomyces / Q000201:enzymology* / Q000254:growth & development
chemical_list: D001426:Bacterial Proteins; D003470:Culture Media; D010447:Peptide Hydrolases; D000645:Ammonium Sulfate