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Fig. 4. EFA6A and EFA6B colocalise with ARF6 in microvilli-like structures at the plasma membrane. (A-D) Localization of C-terminally HA-tagged ARF6 and EGFP-EFA6A (A,B), or -EFA6B (C,D) in BHK cells. Micrographs show that surface microvilli-like structures are enriched in ARF6 and EFA6A or EFA6B (arrows). The focus was set at the level of the dorsal plasma membrane. Bar, 10 µm.