Racemic protein crystal structure of aureocin A53 from Staphylococcus aureus in the dimeric state

Roles of inter- and intramolecular tryptophan interactions in membrane-active proteins revealed by racemic protein crystallography.

(MED)(DSN)(DTR)(DLE)(DSG)(DPN)(DLE)(DLY)(DTY)(DIL)(DAL)(DLY)(DTY)G(DLY)(DLY)
(DAL)(DVA)(DSN)(DAL)(DAL)(DTR)(DLY)(DTY)(DLY)G(DLY)(DVA)(DLE)(DGL)(DTR)(DLE)
(DSG)(DVA)G(DPR)(DTH)(DLE)(DGL)(DTR)(DVA)(DTR)(DGN)(DLY)(DLE)(DLY)(DLY)(DIL)
(DAL)G(DLE)

A racemic mixture of L-Aureocin A53 and D-Aureocin A53 at 40 mg/mL concentration was mixed 1:1 with 0.7 M sodium citrate, 0.1 M Tris precipitant condition, pH 8.5 in a 0.4 microlitre sitting drop. Crystals were submerged in 2.0 M lithium sulphate as cryoprotectant and flash frozen in liquid nitrogen during harvesting.

Engineering and Physical Sciences Research Council

Biotechnology and Biological Sciences Research Council (BBSRC)

Hydrogens have been added in their riding positions

Bacteriocin, D-protein, racemic, mirror-image, ANTIMICROBIAL PROTEIN