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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Production of heterologous proteins in plants - human papillomavirus (HPV 16) derived antigens
 Folwarczna, Jitka ; Čeřovská, Noemi (advisor) ; Ryšánek, Pavel (referee) ; Kumar, Jiban (referee)
5 Abstract Even though prophylactic vaccine against human papillomavirus (HPV) is currently licensed, infections by the virus continue to be the major health problem mainly in developing countries. Considerable effort is being devoted to preparation of therapeutic vaccine and to decrease of the production costs of current vaccine. Viral proteins such as the E7 oncoprotein and the L2 capsid protein from HPV type 16 are promising targets for the development of the experimental anti-HPV vaccine. The aim of our work was optimization of expression of mutagenized E7 oncoprotein (E7ggg) fused to the C-terminus of Tobacco mosaic virus (TMV) coat protein (CP) or Potato virus X (PVX) CP in viral vectors derived from these plant viruses. The impact of linkers connecting CP and E7ggg fusion partners on expression and stability of fusion proteins was examined. The fusion proteins were first expressed in Escherichia coli (E. coli) MC1061 to assess the characteristics of the recombinant protein prior to their transient expression in both non-transgenic or transgenic Nicotiana benthamiana (N. benthamiana). We have obtained the high level expression in E. coli, but most of the expressed proteins based on TMV CP remained in insoluble inclusion bodies. To increase the ratio of soluble protein various molecular...
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