| A | OTCace | e3txxA1 | A: a/b three-layered sandwiches | X: Ribonuclease H-like | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: OTCace | ECOD (v294.1) |
| B | TPK_catalytic | e3txxB3 | A: a/b three-layered sandwiches | X: POZ domain | H: Rossmann-related | T: S-adenosyl-L-methionine-dependent methyltransferases | F: TPK_catalytic | ECOD (v294.1) |
| B | | e3txxB2 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | T: Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | F: | ECOD (v294.1) |
| C | RRM_1 | e3txxC2 | A: a/b three-layered sandwiches | X: beta-Grasp | H: HTH | T: winged helix domain | F: RRM_1 | ECOD (v294.1) |
| D | RRM_1 | e3txxD2 | A: a/b three-layered sandwiches | X: beta-Grasp | H: HTH | T: winged helix domain | F: RRM_1 | ECOD (v294.1) |
| D | OTCace_N | e3txxD1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | T: Class I glutamine amidotransferase-like | F: OTCace_N | ECOD (v294.1) |
| E | OTCace | e3txxE1 | A: a/b three-layered sandwiches | X: Transmembrane heme-binding four-helical bundle | H: Anticodon-binding domain of Class II aaRS | T: Anticodon-binding domain of Class II aaRS | F: OTCace | ECOD (v294.1) |
| E | | e3txxE2 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | T: Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | F: | ECOD (v294.1) |
| F | RRM_1 | e3txxF2 | A: a/b three-layered sandwiches | X: beta-Grasp | H: HTH | T: winged helix domain | F: RRM_1 | ECOD (v294.1) |
| G | AAA | e3txxG1 | A: a/b three-layered sandwiches | X: amino-terminal domain of OmpATb | H: amino-terminal domain of OmpATb | T: amino-terminal domain of OmpATb | F: AAA | ECOD (v294.1) |
| H | | e3txxH7 | A: a/b three-layered sandwiches | X: DEATH domain | H: Ten stranded beta/alpha barrel | T: Ten stranded beta/alpha barrel | F: | ECOD (v294.1) |
| I | AAA | e3txxI1 | A: a/b three-layered sandwiches | X: amino-terminal domain of OmpATb | H: amino-terminal domain of OmpATb | T: amino-terminal domain of OmpATb | F: AAA | ECOD (v294.1) |
| J | | e3txxJ7 | A: a/b three-layered sandwiches | X: DEATH domain | H: Ten stranded beta/alpha barrel | T: Ten stranded beta/alpha barrel | F: | ECOD (v294.1) |
| K | | e3txxK7 | A: a/b three-layered sandwiches | X: DEATH domain | H: Ten stranded beta/alpha barrel | T: Ten stranded beta/alpha barrel | F: | ECOD (v294.1) |
| L | | e3txxL7 | A: a/b three-layered sandwiches | X: DEATH domain | H: Ten stranded beta/alpha barrel | T: Ten stranded beta/alpha barrel | F: | ECOD (v294.1) |