| A | | e4cbiA2 | A: alpha arrays | X: Alpha helical domain of ribonucleotide reductases | H: Alpha helical domain of ribonucleotide reductases | T: Alpha helical domain of ribonucleotide reductases | F: | ECOD (v295.2) |
| A | Ldh_1_C | e4cbiA4 | A: alpha arrays | X: MocoBD/DmpA-related | H: MocoBD/DmpA-related | T: Retrovirus capsid protein-C | F: Ldh_1_C | ECOD (v295.2) |
| B | | e4cbiB3 | A: alpha arrays | X: Alpha helical domain of ribonucleotide reductases | H: Alpha helical domain of ribonucleotide reductases | T: Alpha helical domain of ribonucleotide reductases | F: | ECOD (v295.2) |
| B | Ldh_1_C | e4cbiB2 | A: alpha arrays | X: MocoBD/DmpA-related | H: MocoBD/DmpA-related | T: Retrovirus capsid protein-C | F: Ldh_1_C | ECOD (v295.2) |
| C | DNA_polI_exo1 | e4cbiC2 | A: alpha arrays | X: Alpha helical domain of ribonucleotide reductases | H: Alpha helical domain of ribonucleotide reductases | T: Alpha helical domain of ribonucleotide reductases | F: DNA_polI_exo1 | ECOD (v295.2) |
| C | | e4cbiC3 | A: alpha arrays | X: HTH | H: HTH | T: winged helix domain | F: | ECOD (v295.2) |
| C | Spectrin | e4cbiC4 | A: alpha arrays | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: Spectrin | ECOD (v295.2) |
| D | Flav_NS3-hel_C | e4cbiD1 | A: alpha arrays | X: Phage tail fiber protein trimerization domain | H: Phage tail fiber protein trimerization domain | T: Phage tail fiber protein trimerization domain | F: Flav_NS3-hel_C | ECOD (v295.2) |