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. Author manuscript; available in PMC: 2012 Jan 20.
Published in final edited form as: Nat Struct Mol Biol. 2011 Jan 30;18(3):288–294. doi: 10.1038/nsmb.1978

Figure 5.

Figure 5

Schematic representation of the allosteric binding model. B corresponds to the bound state. F(F′) and U(U′) correspond to the free folded and partially unfolded states that are adjacent to a free (bound) subunit, respectively. Transitions involving the symmetry-related FB and UB states are not shown.