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. 1970 May 1;131(5):1004-15.
doi: 10.1084/jem.131.5.1004.

Bactericidal substance from Staphylococcus aureus. Biological properties

A S Dajani, E D Gray, L W Wannamaker

Bactericidal substance from Staphylococcus aureus. Biological properties

A S Dajani et al. J Exp Med. .

Abstract

A bactericidal substance previously isolated from phage type 71 Slaphylococcus aureus has been further identified and characterized. Staphylococci belonging to phage type 71 produce the substance in higher titers than staphylococci lysed by other phages in group II in addition to phage 71. Other staphylococci do not produce the bactericidal substance. The bactericidal substance shares several of the properties of bacteriocins but differs from this group of antibiotic substances in some respects. A combination of ammonium sulfate fractionation and gel filtration on a Sephadex G-100 column resulted in considerable degree of purification of the bactericidal substance. The substance is a previously unrecognized product of S. aureus and is distinct from other extracellular products of this organism.

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