Plant Pathol J > Volume 27(1); 2011 > Article
The Plant Pathology Journal 2011;27(1):37-43.
DOI: https://doi.org/10.5423/PPJ.2011.27.1.037    Published online March 31, 2011.
Generation of Antibodies Against Rice stripe virus Proteins Based on Recombinant Proteins and Synthetic Polypeptides
Sen Lian, Miranda Gilda Jonson, Won Kyong Cho, Hong Soo Choi, Yeon Ho Je, Kook Hyung Kim
Abstract
Rice stripe virus (RSV) is one of serious epidemic pathogens for rice species grown in many Asian countries. Therefore, it is necessary to produce a diagnostic detection kit applicable in fields for RSV detection. In this study, RSV proteins that were derived from recombinant proteins and synthetic polypeptides as antigens were generated and were raised in rabbits for antiserum production. Among seven proteins in RSV, genes that code for NCP and NS3 proteins were cloned and subcloned into vector carrying His-tag protein and were expressed in E. coli. Of two recombinant proteins, only anti-NCP displayed stable hybridization signals in western blot analysis. Alternately, synthetic RSV polypeptides for CP, NCP, NS3 and NSvc4 we also generated and only antibodies against CP and NCP were very effective to detect RSV in both RSV infected rice and weed plants. However, antibodies against NS3 and NSvc4 showed weak specific bands as well as strong non-specific background due to the difference of viral proteins produced in the infected leaves. In summary, the antibodies generated against RSV proteins produced in this study will be useful for various assays such as for RSV diagnostic detection, immunoprecipitation, protein purification, and western blot analysis.
Key Words: antibody, NCP, rice, rice stripe virus
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