2NAE:
reference: Dynamic regulation of CD28 conformation and signaling by charged lipids and ions., Yang W, Pan W, Chen S, Trendel N, Jiang S, Xiao F, Xue M, Wu W, Peng Z, Li X, Ji H, Liu X, Jiang H, Wang H, Shen H, Dushek O, Li H, Xu C, Nat Struct Mol Biol. 2017 Oct 23. doi: 10.1038/nsmb.3489. PMID: 29058713

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