Characterization of a novel structural member, LukE-LukD, of the bi-component staphylococcal leucotoxins family
- PMID: 9781679
- DOI: 10.1016/s0014-5793(98)01130-2
Characterization of a novel structural member, LukE-LukD, of the bi-component staphylococcal leucotoxins family
Erratum in
- FEBS Lett 1998 Dec 18;441(2):342. Giradot R [corrected to Girardot R]
Abstract
A new member of the staphylococcal bi-component leucotoxins family, LukE (32 kDa) and LukD (34.3 kDa) has been characterized from Staphylococcus aureus strain Newman. LukE was 58-68% identical with the class S proteins, whereas LukD was 71-77% identical with the class F proteins of the family. A partial immunoreactivity with the various affinity-purified antibodies specific for the other proteins was observed. Immunoprecipitation assay and gene probing confirmed a 30% frequency among human clinical isolates, differing from the distribution of the other known leucotoxins (P<0.005). LukE+LukD was as effective as the Panton-Valentine leucocidin for inducing dermonecrosis when injected in the rabbit skin, but not hemolytic and poorly leucotoxic compared to other leucotoxins expressed by Staphylococcus aureus.
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