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Superposition of the B56-BubR1 complex with the PP2A-shugoshin complex. The Aα-B56γ1-Cα PP2A/Sgo1 complex structure (PDB code: 3FGA) is superimposed to the current B56γ1-BubR1 complex structure, based on the common B56γ1 subunit. The Sgo1 coiled-coil domain homodimer, which is responsible for PP2A binding, is in blue color.
