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Journal of Bacteriology, July 2005, p. 4592-4597, Vol. 187, No. 13
0021-9193/05/$08.00+0 doi:10.1128/JB.187.13.4592-4597.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.
Department of Pathology and Microbiology, University of South Carolina School of Medicine, Columbia, South Carolina 29208,1 Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri 65211,2 Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 911255-30003
Received 7 February 2005/ Accepted 28 March 2005
Certain carbohydrates (rhamnose, 3-O-methyl rhamnose, and galactosamine) have been demonstrated to be present in Bacillus anthracis spores but absent in vegetative cells. Others have demonstrated that these spore-specific sugars are constituents of the glycoprotein BclA. In the current work, spore extracts were separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. A second collagen-like glycoprotein, BclB, was identified in B. anthracis. The protein moiety of this glycoprotein was identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MS) and the carbohydrate components by gas chromatography-mass spectrometry and tandem mass spectrometry. Spore-specific sugars were also demonstrated to be components of BclB.
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