| B [auth A] | MS_channel_2nd | e6qtpA1 | A: alpha bundles | X: PriB N-terminal domain-like | H: Aconitase iron-sulfur domain | T: Aconitase iron-sulfur domain | F: MS_channel_2nd | ECOD (develop294) |
| D [auth C] | MS_channel_2nd | e6qtpC1 | A: alpha bundles | X: PriB N-terminal domain-like | H: Aconitase iron-sulfur domain | T: Aconitase iron-sulfur domain | F: MS_channel_2nd | ECOD (develop294) |
| C [auth D] | DNA_gyraseB_C,Toprim | e6qtpD1 | A: alpha bundles | X: P-loop domains-like | H: Hemagglutinin HA2 chain | T: Hemagglutinin HA2 chain | F: DNA_gyraseB_C,Toprim | ECOD (develop294) |
| A [auth B] | DNA_gyraseB_C,Toprim | e6qtpB1 | A: alpha bundles | X: P-loop domains-like | H: Hemagglutinin HA2 chain | T: Hemagglutinin HA2 chain | F: DNA_gyraseB_C,Toprim | ECOD (develop294) |