Differential proteomic profiles from distinct Toxoplasma gondii strains revealed by 2D-difference gel electrophoresis

► The differential proteomic profiles of 3 distinct T. gondii strains were shown by 2D-DIGE and MS. ► 84 protein spots were differentially expressed by greater than 1.5-fold in relative abundance. ► 13 protein spots with greater than 2-folds in relative abundance were successfully identified. ► Ten differentially expressed proteins were identified to reveal 7 T. gondii proteins in database. ► GT1 and PTG strains have similar proteomic profiles and both are different from that of CTG strain.