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Immunoproteomic analysis of capsulate and non-capsulate strains of Lactococcus garvieae
Cited 18 time in
Web of Science
Cited 19 time in Scopus
- Authors
- Issue Date
- 2007-01
- Publisher
- Elsevier BV
- Citation
- Veterinary Microbiology, Vol.119 No.2-4, pp.205-212
- Abstract
- A comparative immunoproteomic study was carried out to investigate the immunogenicity of capsulate (KG9408) and noncapsulate (NSS9310) strains of Lactococcus garvieae. Immumoblot assays, following two-dimensional gel electrophoresis (2-DE) for L. garvieae strains, revealed a significant difference between anti-capsulate and anti-non-capsulate rabbit sera with respect to the number and antigenicity of antigenic spots. Anti-capsulate and anti-non-capsulate rabbit sera reacted with an average of 72 and 127 antigenic spots, respectively. The strong reaction of anti-non-capsulate sera with elongation factor (EF)-G and -Tu, and GMP synthase, of the L. garvieae strains identifies these as specific major antigens. This study clearly demonstrates the differences in 2-DE immunoblot profiles between the capsulate and non-capsulate strains of L. garvieae. These differences may be the reason for variations in immunogenicity between capsulate and non-capsulate strains. Glyceraldehyde-3-phosphate dehydrogenase, phosphoglycerate kinase, arginine deaminase and ornithine carbamoyltransferase were identified from the 2-DE inummoblot profiles of both strains. Therefore, these common antigens are potential markers for the development of vaccines against L. garvieae, irrespective of strain. Immunoproteomics, a powerful tool for studying antigens at the proteomic level, allowed a comparative investigation of the immunogenicity of capsulate and non-capsulate strains of L. garvieae for vaccine development. (c) 2006 Elsevier B.V. All rights reserved.
- ISSN
- 0378-1135
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