Fig. 1: Overall architecture of the Sdh2 trimer from M. smegmatis.

a Cryo-EM map of Sdh2 trimer at 2.8 Å resolution. Left: front view; middle: top view (from cytoplasm); right: bottom view (from periplasm). SdhA, SdhB, SdhC, SdhD, and SdhF subunits are colored in green, cyan, purple, blue, and orange individually. Lipids are colored in yellow. b Cartoon representation of Sdh2 trimer, using the same color scheme as above.