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J. Bacteriol., 01 1996, 441-446, Vol 178, No. 2
WW Navarre, S Daefler and O Schneewind
Many surface proteins are thought to be anchored to the cell wall of
gram-positive organisms via their C termini, while the N-terminal domains
of these molecules are displayed on the bacterial surface. Cell wall
anchoring of surface proteins in Staphylococcus aureus requires both an
N-terminal leader peptide and a C-terminal cell wall sorting signal. By
fusing the cell wall sorting of protein A to the C terminus of
staphylococcal beta-lactamase, we demonstrate here that lipoproteins can
also be anchored to the cell wall of S. aureus. The topology of cell
wall-anchored beta-lactamase is reminiscent of that described for Braun's
murein lipoprotein in that the N terminus of the polypeptide chain is
membrane anchored whereas the C-terminal end is tethered to the bacterial
cell wall.
Copyright © 1996, American Society for Microbiology
Cell wall sorting of lipoproteins in Staphylococcus aureus
Department of Microbiology and Immunology, UCLA School of Medicine 90024, USA.
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