Localization of GFP–PfPRMT1. Representative images of GFP–PfPRMT1 in a ring-, trophozoite-, and schizont-stage parasite. Nuclei were stained with DAPI. ‘Triple’ indicates merging of the light, GFP and DAPI images of the same cells. PfPRMT1 is located in both the cytoplasm and the nucleus.Reproduced with permission, from Fan Q, Miao J, Cui L, Cui L. Characterization of protein arginine methyltransferase I from Plasmodium falciparum. Biochem J. 2009 421(1):107-18. © The Biochemical Society.