3NS8:
reference: Structural and biochemical studies of the open state of Lys48-linked diubiquitin., Lai MY, Zhang D, Laronde-Leblanc N, Fushman D, Biochim Biophys Acta. 2012 Nov;1823(11):2046-56. doi:, 10.1016/j.bbamcr.2012.04.003. Epub 2012 Apr 16. PMID: 22542781

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