6I58:
reference: Plasma Kallikrein Structure Reveals Apple Domain Disc Rotated Conformation Compared to Factor XI., Li C, Voos KM, Pathak M, Hall G, McCrae KR, Dreveny I, Li R, Emsley J, J Thromb Haemost. 2019 Feb 23. doi: 10.1111/jth.14418. PMID: 30801944

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