| C | MTD | e1u6iC1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |
| F | MTD | e1u6iF1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |
| G | MTD | e1u6iG1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |
| H | MTD | e1u6iH1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |
| I | MTD | e1u6iI1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |
| K | MTD | e1u6iK1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |
| L | MTD | e1u6iL1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |
| J | MTD | e1u6iJ1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |
| E | MTD | e1u6iE1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |
| D | MTD | e1u6iD1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |
| B | MTD | e1u6iB1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |
| A | MTD | e1u6iA1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) | F: MTD | ECOD (1.6) |