Abstract

mazEF modules encode toxin-antitoxin pairs that are involved in the bacterial stress response through controlled and specific degradation of mRNA. Staphylococcus aureus MazF and MazE constitute a unique toxin-antitoxin module under regulation of the sigB operon. A MazF-type mRNA interferase iscombined with an antitoxin of unknown fold. Crystals of S. aureus MazF (SaMazF) were grown in space group P2(1)2(1)2(1). The crystals diffracted to 2.1 Å resolution and are likely to contain two SaMazF dimers in the asymmetric unit.

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