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The ultrastructure of WT or hem1−/− DC and T cell synapses. Z-stack through high pressure–frozen and serially sectioned synapse formed between mature OVA peptide–loaded WT (left) or hem1−/− DC (right) and OT-II T cell (red); z-interval: 30 nm; scale bar: 1 µm. Frame rate, 10 frames per second.
