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      Development and characterization of a recombinant chicken single-chain Fv antibody detecting Eimeria acervulina sporozoite antigen.

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          Abstract

          Chicken monoclonal antibody (mAb), 8C3, which is reactive with a sporozoite antigen of Eimeria acervulina, is a potential therapeutic agent against avian coccidiosis caused by Eimeria spp. However, production of large amounts of 8C3 mAb in cell culture system is labor intensive and not cost-effective. Accordingly, recombinant single chain variable fragment (ScFv) antibody was constructed by amplification of the V(H) and V(L) genes from chicken hybridoma, 8C3 and when expressed in E. coli gave 5 mg l(-1). The expressed protein showed antigen binding activity equivalent to that of the parental mAb. In addition, nucleotide sequence comparison of 8C3 gene to the germline chicken V(L) genes suggested that the gene conversion with (V)lambda pseudogenes might contribute to the diversification of V(L) genes in chickens.

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          Author and article information

          Journal
          Biotechnol. Lett.
          Biotechnology letters
          Springer Nature America, Inc
          0141-5492
          0141-5492
          Mar 2005
          : 27
          : 5
          Affiliations
          [1 ] Department of Microbiology, College of Natural Sciences, Changwon National University, Changwon 641-773, Korea.
          Article
          10.1007/s10529-005-0682-8
          15834788

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