| E | U6-snRNA_bdg | e3vr9E1 | A: alpha bundles | X: Transmembrane heme-binding four-helical bundle | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: U6-snRNA_bdg | ECOD (develop294) |
| A | U6-snRNA_bdg | e3vr9A1 | A: alpha bundles | X: Transmembrane heme-binding four-helical bundle | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: U6-snRNA_bdg | ECOD (develop294) |
| F | YchF-GTPase_C | e3vr9F1 | A: alpha bundles | X: Fusion glycoprotein F2 | H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase | T: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase | F: YchF-GTPase_C | ECOD (develop294) |
| B | Rhv | e3vr9B1 | A: alpha bundles | X: HTH | H: HTH | T: winged helix domain | F: Rhv | ECOD (develop294) |
| G | Histone | e3vr9G1 | A: alpha bundles | X: jelly-roll | H: Double-stranded beta-helix | T: Double-stranded beta-helix | F: Histone | ECOD (develop294) |
| C | Rhv | e3vr9C1 | A: alpha bundles | X: HTH | H: HTH | T: winged helix domain | F: Rhv | ECOD (develop294) |
| H | Sua5_yciO_yrdC | e3vr9H1 | A: alpha bundles | X: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | H: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | T: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | F: Sua5_yciO_yrdC | ECOD (develop294) |
| D | Rhv | e3vr9D1 | A: alpha bundles | X: HTH | H: HTH | T: winged helix domain | F: Rhv | ECOD (develop294) |