Abstract
Toxoplasma gondii is defined as an obligate intracellular apicomplexan parasite and influences approximatelyone-third of the human all over the world. ROP54 protein is expressed in the rhoptry of Toxoplasma gondii. In the present study, we used SMART software to analyzethe secondary structure of ROP54. The 3D model of ROP54 protein was constructed and analyzed using SWISS-MODEL server and VMD software. The structure results fully showed that ROP54 proteinis an importantmember from the ROP family. Moreover, DNAMAN software and Epitope Database online service were used to analyze liner-B cell epitopes and Th-cell epitopes of the protein. The bioinformatics prediction of ROP54 protein could provide positive information on treatment and vaccine for toxoplasmosis. Furthermore, ROP54 gene was obtained from PCR, and a recombinant eukaryotic expression vector (pEGFP-ROP54) was constructed in the following study. After identification of enzyme digestion, the constructed plasmid was transfected into HEK 293-T cells. The RT-PCR result suggested that the recombinant plasmid could transcribe successfully in HEK 293-T cell.
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