4JHD:
reference: Structural Basis of Actin Filament Nucleation by Tandem W Domains., Chen X, Ni F, Tian X, Kondrashkina E, Wang Q, Ma J, Cell Rep. 2013 May 29. pii: S2211-1247(13)00210-6. doi:, 10.1016/j.celrep.2013.04.028. PMID: 23727244

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