Production and purification of recombinant protective antigen and protective efficacy against Bacillus anthracis

Miller, J., McBride, B. W., Manchee, R. J., Moore, P. and Baillie, Les ORCID: https://orcid.org/0000-0002-8186-223X 1998. Production and purification of recombinant protective antigen and protective efficacy against Bacillus anthracis. Letters in Applied Microbiology 26 (1) , pp. 56-60. 10.1046/j.1472-765X.1998.00274.x

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Abstract

Recombinant protective antigen (rPA), expressed by Bacillus subtilis WB600 (pPA101), has been purified to homogeneity and the protective efficacy against a Bacillus anthracis challenge has been investigated. rPA was fractionated from culture supernatant fluid by ammonium sulphate, followed by anion exchange chromatography using DEAE Streamline™, anion-exchange chromatography on FPLC MonoQ HR 10/10 and finally, gel filtration chromatography on FPLC Superose 12 HR 10/30, to yield 7 mg rPA per litre of culture. The protective efficacy of rPA against an airborne challenge with the AMES strain of B. anthracis was determined in the presence of the adjuvants, alhydrogel and Ribi, and compared to that achieved by the current UK human vaccine in guinea pigs. rPA combined with the Ribi adjuvant was found to provide 100% protection against challenge.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Pharmacy
Subjects:	R Medicine > RM Therapeutics. Pharmacology
Publisher:	Wiley-Blackwell
ISSN:	0266-8254
Last Modified:	18 Oct 2022 14:26
URI:	https://orca.cardiff.ac.uk/id/eprint/17498

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