Objective:To construct a recombinant plasmid containing rhoptry protein 2(ROP2)gene of Toxoplasma gondii and express it in E. coli for selection of diagnostic antigen and vaccine candidate.

• 目的:构建弓形虫棒状体蛋白(ROP2)基因重组质粒并在大肠杆菌中表达,用于筛选弓形虫新的诊断抗原和疫苗分子。