4KWE:
reference: FtsZ protofilaments use a hinge-opening mechanism for constrictive force generation., Li Y, Hsin J, Zhao L, Cheng Y, Shang W, Huang KC, Wang HW, Ye S, Science. 2013 Jul 26;341(6144):392-5. doi: 10.1126/science.1239248. PMID: 23888039

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