| I | Molybdopterin | e4ubrI1 | A: alpha arrays | X: jelly-roll | H: Double-stranded beta-helix | T: Double-stranded beta-helix | F: Molybdopterin | ECOD (v295.2) |
| H | Molybdopterin | e4ubrH1 | A: alpha arrays | X: jelly-roll | H: Double-stranded beta-helix | T: Double-stranded beta-helix | F: Molybdopterin | ECOD (v295.2) |
| G | Molybdopterin | e4ubrG1 | A: alpha arrays | X: jelly-roll | H: Double-stranded beta-helix | T: Double-stranded beta-helix | F: Molybdopterin | ECOD (v295.2) |
| F | Molybdopterin | e4ubrF1 | A: alpha arrays | X: jelly-roll | H: Double-stranded beta-helix | T: Double-stranded beta-helix | F: Molybdopterin | ECOD (v295.2) |
| E | Molybdopterin | e4ubrE1 | A: alpha arrays | X: jelly-roll | H: Double-stranded beta-helix | T: Double-stranded beta-helix | F: Molybdopterin | ECOD (v295.2) |
| D | Molybdopterin | e4ubrD1 | A: alpha arrays | X: jelly-roll | H: Double-stranded beta-helix | T: Double-stranded beta-helix | F: Molybdopterin | ECOD (v295.2) |
| C | Molybdopterin | e4ubrC1 | A: alpha arrays | X: jelly-roll | H: Double-stranded beta-helix | T: Double-stranded beta-helix | F: Molybdopterin | ECOD (v295.2) |
| B | Molybdopterin | e4ubrB1 | A: alpha arrays | X: jelly-roll | H: Double-stranded beta-helix | T: Double-stranded beta-helix | F: Molybdopterin | ECOD (v295.2) |
| A | Molybdopterin | e4ubrA1 | A: alpha arrays | X: jelly-roll | H: Double-stranded beta-helix | T: Double-stranded beta-helix | F: Molybdopterin | ECOD (v295.2) |