| Q5ZIS0 | n/a | 1yq3 | UNL | B | 1011 | e1yq3D1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 1yq3 | UNL | D | 228 | e1yq3D1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 2fbw | UNL | D | 229 | e2fbwD1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 2fbw | UNL | Q | 221 | e2fbwQ1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 2h88 | UNL | D | 254 | e2h88D1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 2h88 | UNL | Q | 256 | e2h88Q1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 2h89 | UNL | D | 142 | e2h89D1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 2wqy | UNL | D | 291 | e2wqyD3 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 2wqy | UNL | Q | 288 | e2wqyQ1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 6myo | UNL | D | 215 | e6myoD1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 6myp | UNL | C | 211 | e6mypD1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 6myp | UNL | D | 215 | e6mypD1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 6myq | UNL | D | 212 | e6myqD1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 6myr | UNL | B | 1015 | e6myrD1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 6mys | UNL | C | 209 | e6mysD1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 6mys | UNL | D | 215 | e6mysD1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 6myt | UNL | D | 208 | e6mytD1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |
| Q5ZIS0 | n/a | 6myu | UNL | D | 216 | e6myuD1 | Transmembrane heme-binding four-helical bundle | Transmembrane heme-binding four-helical bundle | Fumarate reductase respiratory complex transmembrane subunits | CybS |