期刊
JOURNAL OF VIROLOGICAL METHODS
卷 107, 期 2, 页码 147-154出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0166-0934(02)00212-4
关键词
monoclonal antibodies; grouper; Epinephelus spp.; iridovirus
A panel of six monoclonal antibodies (mAbs) against a grouper iridovirus (SGIV) were produced by immunization of Balb/c mice with purified virus preparations. Isotyping test revealed all the mAbs were IgG1. None of the mAbs possessed the ability to neutralize SGIV in cell cultures. Western blot showed that 4 mAbs reacted with 2 SGIV proteins at molecular mass of approximately 100 and 117 kDa in gradient-purified virus. Immunofluorescent studies showed that the two specific viral proteins VP100 and VP117 were localized within virus assembly sites in the cytoplasm of SGIV-infected grouper cells (GP). Fractionations of the iridovirus in a 20-60% sucrose gradient were detected successfully by all the six mAbs using immunodot blot. An antigen-capture enzyme-linked immunosorbent assay (ELISA) system, based on the use of mAb 7E11 for capture and a rabbit polyclonal antibody to SGIV for detection was developed. SGIV antigen was detected in gradient-purified virus and virus-infected grouper blood. These novel mAbs will facilitate the development of more specific and standardized diagnostic techniques for marine fish iridovirus. (C) 2002 Elsevier Science B.V. All rights reserved.
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