Immunoelectron microscopy of 3D7 rings. Double labeling with mouse anti-Pfactin-I (20 nm gold grain, bold arrow) and rabbit anti-histone H3 (10 nm gold grain, slim arrow). N, nucleus; C, cytoplasm. Gold grains are virtually confined to the nuclear periphery.

Zhang Q, Huang Y, Zhang Y, Fang X, Claes A, Duchateau M, Namane A, Lopez-Rubio JJ, Pan W, Scherf A. A critical role of perinuclear filamentous actin in spatial repositioning and mutually exclusive expression of virulence genes in malaria parasites. Cell Host Microbe. 2011 10:451-63.