Recombinant Modified <i>Bacillus anthracis</i> Protective Antigen for Use in Vaccines
This invention relates to improved methods of preparing Bacillus anthracis protective antigen (PA) for use in vaccines. PA is a secreted, non-toxic protein with a molecular weight of 83 KDa. PA is a major component of the currently licensed human vaccine (Anthrax Vaccine Adsorbed, AVA).