title: Surface layer protein EA1 is not a component of Bacillus anthracis spores but is a persistent contaminant in spore preparations.
abstract: 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.
authors.affiliation: Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.
authors.forename: David D
authors.initials: DD
authors.lastname: Williams
authors.forename: Charles L
authors.initials: CL
authors.lastname: Turnbough
mesh_terms: D001408:Bacillus anthracis / Q000737:chemistry*; D001426:Bacterial Proteins; D008562:Membrane Glycoproteins / Q000032:analysis*; D013171:Spores, Bacterial / Q000737:chemistry*
chemical_list: D001426:Bacterial Proteins; D008562:Membrane Glycoproteins; C055764:S-layer proteins