| B | | e4xuuB1 | A: Anticodon-binding domain of Class II aaRS | X: Anticodon-binding domain of Class II aaRS | H: Anticodon-binding domain of Class II aaRS | T: ArsA_ATPase, ParA | F: | ECOD (20:10:01) |
| D | | e4xuuD1 | A: Anticodon-binding domain of Class II aaRS | X: Anticodon-binding domain of Class II aaRS | H: Anticodon-binding domain of Class II aaRS | T: ArsA_ATPase, ParA | F: | ECOD (20:10:01) |
| C | | e4xuuC1 | A: Anticodon-binding domain of Class II aaRS | X: Anticodon-binding domain of Class II aaRS | H: Anticodon-binding domain of Class II aaRS | T: ArsA_ATPase, ParA | F: | ECOD (20:10:01) |
| A | | e4xuuA1 | A: P-loop domains-like | X: P-loop domains-related | H: P-loop containing nucleoside triphosphate hydrolases | T: Helicase_C | F: | ECOD (20:10:01) |