| B | | e4b0tB2 | A: Alpha helical domain of ribonucleotide reductases | X: Alpha helical domain of ribonucleotide reductases | H: Alpha helical domain of ribonucleotide reductases | T: PI3_PI4_kinase | F: | ECOD (20:10:01) |
| B | | e4b0tB1 | A: Alpha helical domain of ribonucleotide reductases | X: Alpha helical domain of ribonucleotide reductases | H: Alpha helical domain of ribonucleotide reductases | T: E1_FCCH | F: | ECOD (20:10:01) |
| A | | e4b0tA2 | A: Alpha helical domain of ribonucleotide reductases | X: Alpha helical domain of ribonucleotide reductases | H: Alpha helical domain of ribonucleotide reductases | T: PI3_PI4_kinase | F: | ECOD (20:10:01) |
| A | | e4b0tA1 | A: Alpha helical domain of ribonucleotide reductases | X: Alpha helical domain of ribonucleotide reductases | H: Alpha helical domain of ribonucleotide reductases | T: E1_FCCH | F: | ECOD (20:10:01) |