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. 1992 Oct 29;359(6398):801-6.
doi: 10.1038/359801a0.

Crystal structure of staphylococcal enterotoxin B, a superantigen

S Swaminathan  1 , W Furey, J Pletcher, M Sax
Affiliations

Crystal structure of staphylococcal enterotoxin B, a superantigen

S Swaminathan et al. Nature. .

Abstract

The three-dimensional structure of staphylococcal enterotoxin B, which is both a toxin and a super-antigen, has been determined to a resolution of 2.5 A. The unusual main-chain fold containing two domains may represent a general motif adopted by all staphylococcal enterotoxins. The T-cell receptor binding site encompasses a shallow cavity formed by both domains. The MHCII molecule binds to an adjacent site. Another cavity with possible biological activity was also identified.

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