2ZJS:
reference: Conformational transition of Sec machinery inferred from bacterial SecYE structures., Tsukazaki T, Mori H, Fukai S, Ishitani R, Mori T, Dohmae N, Perederina A, Sugita Y, Vassylyev DG, Ito K, Nureki O, Nature. 2008 Oct 16;455(7215):988-91. PMID: 18923527

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