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Journal of Bacteriology, January 2004, p. 566-569, Vol. 186, No. 2
0021-9193/04/$08.00+0     DOI: 10.1128/JB.186.2.566-569.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.

Surface Layer Protein EA1 Is Not a Component of Bacillus anthracis Spores but Is a Persistent Contaminant in Spore Preparations

David D. Williams and Charles L. Turnbough Jr.*

Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama 35294

Received 25 August 2003/ Accepted 16 October 2003

EA1 is an abundant, highly antigenic, surface layer protein of Bacillus anthracis vegetative cells. Recent studies indicate that EA1 is also a component of B. anthracis spores and a potential marker for spore detection. We show here that EA1 is not a spore component but a persistent contaminant in spore preparations.

* Corresponding author. Mailing address: UAB Department of Microbiology, BBRB 409, 1530 3rd Ave. South, Birmingham, AL 35294-2170. Phone: (205) 934-6289. Fax: (205) 975-5479. E-mail: ChuckT{at}uab.edu.

Journal of Bacteriology, January 2004, p. 566-569, Vol. 186, No. 2
0021-9193/04/$08.00+0     DOI: 10.1128/JB.186.2.566-569.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.



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