precipitation by ammonium sulfate and a subsequent purification of the culture fluid of actinomyces levoris by gel-filtration through sephadex g-25 , ion-exchange chromatography on deae-cellulose and cm-cellulose resulted in an enzyme which activley lyzes the cell walls of a hemolytic streptococcus of group a .
C0011050
deae-cellulose
C0007648
cellulose