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| Content Provider | PubMed Central |
|---|---|
| Author | Garin-bastuji, B. Bowden, R. A. Dubray, G. Limet, J. N. |
| Abstract | Smooth (S)-lipopolysaccharide (LPS) preparations from reference and field strains of several biovars of Brucella abortus, B. melitensis, and B. suis were prepared by (i) the hot phenol-water method, (ii) hot sodium dodecyl sulfate extraction and proteinase K digestion, or (iii) dimethyl sulfoxide extraction. These S-LPS-enriched fractions were further analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and silver staining after periodate oxidation. Immunoblots were developed by using either monoclonal antibodies specific for Brucella A or M antigens or polyclonal polyspecific or monospecific sera from rabbits, cattle, and goats. The specificity of monoclonal antibodies reactive with Brucella unique (A or M) epitopes was demonstrated by enzyme-linked immunosorbent assay, LPS latex agglutination, or agglutination inhibition. The most-represented subunits of S-LPS ranged in Mr from 30,000 to 70,000 relative to marker proteins. According to A or M immunodominance, two sodium dodecyl sulfate-polyacrylamide gel electrophoresis banding patterns were clearly distinguished among biovars, whatever the fraction tested: a close succession of regularly spaced narrow bands for A greater than M strains and regularly spaced triplets of bands including either (i) a first thin band followed by two thick bands for B. abortus M greater than A strains or (ii) one thick band between two thin bands for B. melitensis or B. suis M greater than A strains. Moreover, A and M specificities were reaffirmed by sandwich enzyme immunoassay and latex agglutination inhibition with monoclonal antibodies and polyclonal sera. |
| Starting Page | 2169 |
| File Format | |
| ISSN | 1098660X |
| e-ISSN | 1098660X |
| Journal | Journal of Clinical Microbiology |
| Issue Number | 10 |
| Volume Number | 28 |
| Language | English |
| Publisher Date | 1990-10-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Microbiology (medical) |
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