Fig. 1: The NDH-PQ and NDH-Fd structures.

a Cartoon representation of the NDH-PQ structure viewed along the membrane plane. PQ is shown as orange spheres and indicated. b The overall structure of NDH-Fd viewed along the membrane plane. c The location of OPS subunits in NDH-1L complex. The eight OPS subunits are colored differently and indicated, while other subunits are shown in white.