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Serological crossreactivity between Brucella abortus and Yersinia enterocolitica 0:9 I immunoblot analysis of the antibody response to Brucella protein antigens in bovine brucellosis. 1995

R Kittelberger, and F Hilbink, and M F Hansen, and M Penrose, and G W de Lisle, and J J Letesson, and B Garin-Bastuji, and J Searson, and C A Fossati, and A Cloeckaert
Central Animal Health Laboratory, Wallaceville Animal Research Centre, Upper Hutt, New Zealand.

Sera from three groups of Brucella abortus infected cattle were examined in immunoblots with the following antigens: sodium dodecyl sulfate/mercapto ethanol (SDS/ME) extracts of two rought B. abortus strains (45/20 and RB51) and rough B. ovis, smooth lipopolysaccharides (SLPS) from B. abortus strain 99 and Y. enterocolitica 0:9, and a cytoplasmic extract from smooth B. abortus strain 19-S. The sera groups were: (1) 26 sera from animals, experimentally infected with B. abortus strain 544, which were all positive in the conventional brucellosis serological tests; (2) 152 sera from naturally infected cattle herds with varying titres in the conventional brucellosis tests, and (3) 30 sera from naturally infected cattle with varying titres in the conventional brucellosis tests and from which B. abortus was cultured. B. abortus strain 99 and Y. enterocolitica serotype 0:9 SLPS staining showed up frequently in all sera groups and correlated well with the strength in the conventional brucellosis tests, confirming the immunodominance of SLPS in B. abortus infections. Another immunodominant component of 50-80 kDa was found in the rough B. abortus 45/20 antigen preparation but not in the B. abortus RB51 and in the B. ovis cell extracts. This component was also recognised by sera from Y. enterocolitica 0:9 infected cattle and is probably a protein-lipopolysaccharide complex. Although many of the sera from B. abortus infected cattle with high titres in the conventional brucellosis tests showed complex protein staining patterns in blots, no protein bands other than the 50-80 kDa bands were found to be immunodominant.

UI MeSH Term Description Entries
D008070 Lipopolysaccharides Lipid-containing polysaccharides which are endotoxins and important group-specific antigens. They are often derived from the cell wall of gram-negative bacteria and induce immunoglobulin secretion. The lipopolysaccharide molecule consists of three parts: LIPID A, core polysaccharide, and O-specific chains (O ANTIGENS). When derived from Escherichia coli, lipopolysaccharides serve as polyclonal B-cell mitogens commonly used in laboratory immunology. (From Dorland, 28th ed) Lipopolysaccharide,Lipoglycans
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D002003 Brucella abortus A species of the genus BRUCELLA whose natural hosts are cattle and other bovidae. Abortion and placentitis are frequently produced in the pregnant animal. Other mammals, including humans, may be infected. Bacterium abortus,Brucella melitensis biovar abortus
D002007 Brucellosis, Bovine A disease of cattle caused by bacteria of the genus BRUCELLA leading to abortion in late pregnancy. BRUCELLA ABORTUS is the primary infective agent. Bang's Disease,Bang Disease,Bangs Disease,Bovine Brucelloses,Bovine Brucellosis,Brucelloses, Bovine,Disease, Bang,Disease, Bang's
D002417 Cattle Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor. Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D003429 Cross Reactions Serological reactions in which an antiserum against one antigen reacts with a non-identical but closely related antigen. Cross Reaction,Reaction, Cross,Reactions, Cross
D004591 Electrophoresis, Polyacrylamide Gel Electrophoresis in which a polyacrylamide gel is used as the diffusion medium. Polyacrylamide Gel Electrophoresis,SDS-PAGE,Sodium Dodecyl Sulfate-PAGE,Gel Electrophoresis, Polyacrylamide,SDS PAGE,Sodium Dodecyl Sulfate PAGE,Sodium Dodecyl Sulfate-PAGEs
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000907 Antibodies, Bacterial Immunoglobulins produced in a response to BACTERIAL ANTIGENS. Bacterial Antibodies
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal

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