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KMID : 0359320010410030343
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Korean Journal of Veterinary Research
2001 Volume.41 No. 3 p.343 ~ p.350
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Analysis of antigenic sites on the VP4 of porcine rotavirus , Gottfried strain
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김원용/Kim, Won Yong
강신영/송윤경/Kang, Shien Young/Song, Yun Kyung
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Abstract
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The neutralization epitopes of the outer capsid protein VP4 of a porcine rotavirus, Gottfried strain, were studied using neutralizing monocolonal antibodies(N-MAbs). Eight N-MAbs which are specific for the VP4 of Gottfried strain were used for analyzing the antigenic sites of VP4. Three different approaches were used for this analysis; i)testing the serological reactivity of each N-MAb against different G and P types of human and animal rotavirusese ii) analyzing N-MAb-resistant viral escape mutants and iii) performing nucleotide sequence analysis of the VP4 gene of each N-MAb-resistant viral escape mutant. From experimental results, at least four antigenic sites(I, II, III, and IV) were identified. Antigenic site I recognized by N-MAbs 24B9, 23G10, and 26A2 was separated from antigenic site II recognized by N-MAbs 30H5, 32B3, and 29B3. However, these antigenic sites were overlapped with antigenic site III recognized by N-MAb 21A1. The other antigenic site IV recognized by N-MAb 16D2 was separated from antigenic sites I, II, and III.
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