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A. Top view of NaVAb channels colored according to crystallographic temperature factors of the main-chain (blue < 50 Å2 to red > 150 Å2). B. Architecture of the NaVAb pore. Glu177 side-chains, purple; pore volume, grey. The S5 and S6 segments and the P loop from two lateral subunits are shown (Payandeh et al., 2011).
