title: Neutral proteinases from human blood cells.
abstract: 1. Human erythrocytes essentially essentially uncontaminated by leukocytes retain considerable proteolytic activity in the membrane fraction. 2. The enzyme responsible has similar properties to previously-reported human erythrocyte membrane proteinases. 3. A particulate fraction from human leukocytes does not yield a similar enzyme when extracted and fractionated in the same way.
mesh_terms: D002850:Chromatography, Gel; D010450:Endopeptidases / Q000097:blood / Q000302:isolation & purification*; D004910:Erythrocyte Membrane / Q000201:enzymology*; D004912:Erythrocytes / Q000201:enzymology*; D006801:Humans; D007962:Leukocytes / Q000201:enzymology*
chemical_list: D010450:Endopeptidases