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Figure 6.
Figure 6. Qn α Helices are Amphipathic and Show a Charge
Segregation
(A) Qn α helices are shown in the context of
the Rm-Qn dimer (left) and dissected out from the helix bundle
(center and right). The Qn α helices are amphipathic with a
hydrophobic face (green arrows) and charged faces (blue arrow
for basic and red arrow for acidic).
(B) Helix wheel
diagrams for the two Qn α helices show the charge segregation
between the two α helices.
(C) A possible model is shown
for the Qn-Qn four-helix bundle that may mediate IcmQ
dimerization.
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