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Outer membrane proteins Omp10, Omp16, and Omp19 of Brucella spp. are lipoproteins
A Tibor1, B Decelle, J J Letesson
1Laboratoire de Microbiologie et d'Immunologie, Facultés Universitaires Notre-Dame de la Paix, B-5000 Namur, Belgium. anne.tibor@fundp.ac.bc
Abstract:
The deduced sequences of the Omp10, Omp16, and Omp19 outer membrane proteins of Brucella spp. contain a potential bacterial lipoprotein processing sequence. After extraction with Triton X-114, these three proteins partitioned into the detergent phase. Processing of the three proteins is inhibited by globomycin, a specific inhibitor of lipoprotein signal peptidase. The three proteins were radioimmunoprecipitated from [(3)H]palmitic acid-labeled Brucella abortus lysates with monoclonal antibodies. These results demonstrate that Omp10, Omp16, and Omp19 are lipoproteins.