title: Identification of major antigenic proteins of Edwardsiella tarda recognized by Japanese flounder antibody.
abstract: Edwardsiella tarda is a fish pathogen that causes systemic infections in fresh water and marine fish. Determining the antigenic proteins is important for the development of an immunodiagnostic tests and a vaccine for effective infection control in fish. In the current study, antigens were detected by immunoblotting and affinity column chromatography using a Japanese flounder (Paralichthys olivaceus) antibody produced by experimental infection with E. tarda. GroEL, glyceraldehyde-3-phosphate dehydrogenase (GAPDH), outer membrane protein A, filament protein, 30S ribosomal protein S6, 50S ribosomal protein L9, cold shock protein, and carbon storage protein were identified as antigens of E. tarda through biochemical analyses of the molecular weights, isoelectric points, and N-terminal amino-acid sequences. These proteins can be easily detected in flounder infected with E. tarda and are potential diagnostic markers.
authors: National Research Institute of Aquaculture, Fisheries Research Agency, Minami-Ise, Mie 516-0193, Japan. tasakai@affrc.go.jp
authors: Takamitsu
authors: T
authors: Sakai
authors: Tomomasa
authors: T
authors: Matsuyama
authors: Toyohiro
authors: T
authors: Nishioka
authors: Chihaya
authors: C
authors: Nakayasu
authors: Takashi
authors: T
authors: Kamaishi
authors: Kenichi
authors: K
authors: Yamaguchi
authors: Takaji
authors: T
authors: Iida
mesh_terms: D000818:Animals; D000907:Antibodies, Bacterial / Q000097:blood*; D000942:Antigens, Bacterial / Q000276:immunology*; D020609:Edwardsiella tarda / Q000276:immunology*; D005393:Fish Diseases / Q000097:blood / Q000276:immunology / Q000382:microbiology*; D005432:Flounder / Q000097:blood*; D007075:Immunoglobulin M / Q000097:blood / Q000276:immunology
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D007075:Immunoglobulin M