| F | UvrB_inter | e4m9cF2 | A: alpha arrays | X: Anticodon-binding domain of Class II aaRS | H: Anticodon-binding domain of Class II aaRS | T: Anticodon-binding domain of Class II aaRS | F: UvrB_inter | ECOD (v295) |
| F | HetR_C | e4m9cF1 | A: alpha arrays | X: Repetitive alpha hairpins | H: Dimerization domain of heterocyst differentiation protein HetR | T: Dimerization domain of heterocyst differentiation protein HetR | F: HetR_C | ECOD (v295) |
| E | UvrB_inter | e4m9cE1 | A: alpha arrays | X: Anticodon-binding domain of Class II aaRS | H: Anticodon-binding domain of Class II aaRS | T: Anticodon-binding domain of Class II aaRS | F: UvrB_inter | ECOD (v295) |
| E | HetR_C | e4m9cE2 | A: alpha arrays | X: Repetitive alpha hairpins | H: Dimerization domain of heterocyst differentiation protein HetR | T: Dimerization domain of heterocyst differentiation protein HetR | F: HetR_C | ECOD (v295) |
| D | UvrB_inter | e4m9cD1 | A: alpha arrays | X: Anticodon-binding domain of Class II aaRS | H: Anticodon-binding domain of Class II aaRS | T: Anticodon-binding domain of Class II aaRS | F: UvrB_inter | ECOD (v295) |
| D | HetR_C | e4m9cD2 | A: alpha arrays | X: Repetitive alpha hairpins | H: Dimerization domain of heterocyst differentiation protein HetR | T: Dimerization domain of heterocyst differentiation protein HetR | F: HetR_C | ECOD (v295) |
| C | FAA_hydrolase | e4m9cC1 | A: alpha arrays | X: amino-terminal domain of OmpATb | H: amino-terminal domain of OmpATb | T: amino-terminal domain of OmpATb | F: FAA_hydrolase | ECOD (v295) |
| C | HetR_C | e4m9cC2 | A: alpha arrays | X: Repetitive alpha hairpins | H: Dimerization domain of heterocyst differentiation protein HetR | T: Dimerization domain of heterocyst differentiation protein HetR | F: HetR_C | ECOD (v295) |
| B | UvrB_inter | e4m9cB2 | A: alpha arrays | X: Anticodon-binding domain of Class II aaRS | H: Anticodon-binding domain of Class II aaRS | T: Anticodon-binding domain of Class II aaRS | F: UvrB_inter | ECOD (v295) |
| B | HetR_C | e4m9cB3 | A: alpha arrays | X: Repetitive alpha hairpins | H: Dimerization domain of heterocyst differentiation protein HetR | T: Dimerization domain of heterocyst differentiation protein HetR | F: HetR_C | ECOD (v295) |
| A | FAA_hydrolase | e4m9cA2 | A: alpha arrays | X: amino-terminal domain of OmpATb | H: amino-terminal domain of OmpATb | T: amino-terminal domain of OmpATb | F: FAA_hydrolase | ECOD (v295) |
| A | HetR_C | e4m9cA1 | A: alpha arrays | X: Repetitive alpha hairpins | H: Dimerization domain of heterocyst differentiation protein HetR | T: Dimerization domain of heterocyst differentiation protein HetR | F: HetR_C | ECOD (v295) |