| D | NADH_4Fe-4S | e5wtnD1 | A: alpha arrays | X: Phosphorylase/hydrolase-like | H: Ferredoxin domains in multidrug efflux transporter | T: Multidrug efflux transporter AcrB pore domain | F: NADH_4Fe-4S | ECOD (v295) |
| C | NADH_4Fe-4S | e5wtnC1 | A: alpha arrays | X: Phosphorylase/hydrolase-like | H: Ferredoxin domains in multidrug efflux transporter | T: Multidrug efflux transporter AcrB pore domain | F: NADH_4Fe-4S | ECOD (v295) |
| B | NADH_4Fe-4S | e5wtnB2 | A: alpha arrays | X: Phosphorylase/hydrolase-like | H: Ferredoxin domains in multidrug efflux transporter | T: Multidrug efflux transporter AcrB pore domain | F: NADH_4Fe-4S | ECOD (v295) |