2P64:
reference: Suprafacial orientation of the SCFCdc4 dimer accommodates multiple geometries for substrate ubiquitination., Tang X, Orlicky S, Lin Z, Willems A, Neculai D, Ceccarelli D, Mercurio F, Shilton BH, Sicheri F, Tyers M, Cell. 2007 Jun 15;129(6):1165-76. PMID: 17574027

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