T cell killing does not require the formation of a stable mature immunological synapse (vol 5, pg 524, 2004)

Nature Immunology 5, 524–530 (2004). In the legend to Figure 4, the last sentence should be replaced with the following: “Curves in b and d represent the average of at least eight CTL-APC conjugates each.” The authors also regret having omitted reference to M. Faroudi et al. Lytic versus stimulatorysynapse in cytotoxic T lymphocyte/target cell interaction: manifestation of a dual activation threshold.