title: [Isolation of the theta-hemolysin of Cl. perfringens].
abstract: Teta-hemolysine was purified from Cl. perfringens strain BP6K 28 as follows: reprecipitation in the isoelectric point of the enzyme with 2 N H2SO4 containing 15% NaCl, DEAE cellulose chromatography, gel filtration on Sephadex G-100-G75 or Bio Gel P-60--P-100, rechromatography on DEAE-Sephadex A-50 and affinity chromatography. The biological activity of homogenous teta-hemolysine, estimated by complete hemolysis of human erythrocytes, exceeded 100, 000 theta E over mg protein but the enzyme was highly labile. Molecular weight of the enzyme was 53,000 daltons.
mesh_terms: D002846:Chromatography, Affinity; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D003016:Clostridium perfringens / Q000032:analysis*; D006460:Hemolysin Proteins / Q000302:isolation & purification*; D007526:Isoelectric Point; D008970:Molecular Weight
chemical_list: D006460:Hemolysin Proteins
vernacular_title: Vydelenie theta-gemolizina CL. perfringens.