Figure 2: Conformational states and arseno-choline binding observed in BetP-G153D. | Nature Communications

Figure 2: Conformational states and arseno-choline binding observed in BetP-G153D.

From: Substrate-bound outward-open state of the betaine transporter BetP provides insights into Na+ coupling

Figure 2

(a) Surface representation showing the periplasmic cavity. Chains A and B are in substrate-bound outward-open state (CeS), while chain C is in substrate-bound inward-open conformation (CiS). (b) Central binding sites of chains A, B and C, respectively. Arseno-choline is shown in black, red and purple sticks. Anomalous difference Fourier maps are shown at 4.0σ, 7.0σ and 4.0σ levels for substrates in chain A, B and C, respectively.

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