S. aureus SrtA

Sortase A (EC, SrtA, SrtA protein, SrtA sortase) is an enzyme. This enzyme catalyses the following chemical reaction
The enzyme catalyses a cell wall sorting reaction, in which a surface protein with a sorting signal containing a LPXTG motif, is cleaved between the Thr and Gly residue.
This enzyme belongs to the peptidase family C60.
Staphylococcus aureus is a gram-positive coccal bacterium that is a member of the Firmicutes, and is frequently found in the respiratory tract and on the skin. It is often positive for catalase and nitrate reduction. Although S. aureus is not always pathogenic, it is a common cause of skin infections such as abscesses, respiratory infections such as sinusitis, and food poisoning. Pathogenic strains often promote infections by producing potent protein toxins, and expressing cell-surface proteins that bind and inactivate antibodies. The emergence of antibiotic-resistant forms of S. aureus such as MRSA is a worldwide problem in clinical medicine.

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