"The growth of more than 50% of the PfArp4-Ty1-Ribo parasites was arrested when the PfArp4 protein was downregulated". "Consistent with the results of the growth curve analysis, western blot (WB) analysis showed that the expression level of the PfArp4 protein was significantly reduced in the trophozoite stage parasites when GlcN was present in the culture (Fig. 1e). An abnormal morphology was also observed in the trophozoite-stage parasites of the PfArp4-Ty1-Ribo line treated with GlcN after one cell cycle".