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. Author manuscript; available in PMC: 2010 Oct 16.
Published in final edited form as: J Mol Biol. 2009 Aug 13;393(1):176–190. doi: 10.1016/j.jmb.2009.08.012

Figure 4.

Figure 4

A structural phylogram of the chains, showing the relationships among the various IgE-Fc's. The first division splits the clades by their open-closed status. The more open clade is further divided by the swinging motion of the subunits into two clades – the ‘open’ and the ‘intermediate’ clades. The ‘closed’ clade is much larger and the relationships among the chains are more complex. The ‘open’ forms are underlined in yellow, the ‘intermediate’ forms in pink, the ‘closed-b’ in green, and the ‘closed-a’ in blue.