Interleukin 2 (IL-2) and IL-15 use receptors with the same signaling subunits. New structural data show that the signaling complexes they form are topologically nearly identical, which suggests that other factors are responsible for the distinct signaling properties of these complexes.
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Ikemizu, S., Chirifu, M. & Davis, S. IL-2 and IL-15 signaling complexes: different but the same. Nat Immunol 13, 1141–1142 (2012). https://doi.org/10.1038/ni.2472
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DOI: https://doi.org/10.1038/ni.2472
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