| H | Ribonuc_red_sm | e3uusH1   | A: alpha bundles | X: Ferritin/Heme oxygenase/4-helical cytokines | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Ribonuc_red_sm | ECOD (1.6) | 
 | G | Ribonuc_red_sm | e3uusG1   | A: alpha bundles | X: Ferritin/Heme oxygenase/4-helical cytokines | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Ribonuc_red_sm | ECOD (1.6) | 
 | F | Ribonuc_red_sm | e3uusF1   | A: alpha bundles | X: Ferritin/Heme oxygenase/4-helical cytokines | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Ribonuc_red_sm | ECOD (1.6) | 
 | E | Ribonuc_red_sm | e3uusE1   | A: alpha bundles | X: Ferritin/Heme oxygenase/4-helical cytokines | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Ribonuc_red_sm | ECOD (1.6) | 
 | D | ATP-cone_1 | e3uusD3   | A: alpha arrays | X: RuvA-C | H: ATP cone (From Topology) | T: ATP cone | F: ATP-cone_1 | ECOD (1.6) | 
 | D | Ribonuc_red_lgN | e3uusD1   | A: alpha arrays | X: Alpha helical domain of ribonucleotide reductases (From Topology) | H: Alpha helical domain of ribonucleotide reductases (From Topology) | T: Alpha helical domain of ribonucleotide reductases | F: Ribonuc_red_lgN | ECOD (1.6) | 
 | D | Ribonuc_red_lgC | e3uusD2   | A: a/b barrels | X: Ten stranded beta/alpha barrel (From Topology) | H: Ten stranded beta/alpha barrel (From Topology) | T: Ten stranded beta/alpha barrel | F: Ribonuc_red_lgC | ECOD (1.6) | 
 | C | ATP-cone_1 | e3uusC1   | A: alpha arrays | X: RuvA-C | H: ATP cone (From Topology) | T: ATP cone | F: ATP-cone_1 | ECOD (1.6) | 
 | C | Ribonuc_red_lgN | e3uusC3   | A: alpha arrays | X: Alpha helical domain of ribonucleotide reductases (From Topology) | H: Alpha helical domain of ribonucleotide reductases (From Topology) | T: Alpha helical domain of ribonucleotide reductases | F: Ribonuc_red_lgN | ECOD (1.6) | 
 | C | Ribonuc_red_lgC | e3uusC2   | A: a/b barrels | X: Ten stranded beta/alpha barrel (From Topology) | H: Ten stranded beta/alpha barrel (From Topology) | T: Ten stranded beta/alpha barrel | F: Ribonuc_red_lgC | ECOD (1.6) | 
 | B | ATP-cone_1 | e3uusB4   | A: alpha arrays | X: RuvA-C | H: ATP cone (From Topology) | T: ATP cone | F: ATP-cone_1 | ECOD (1.6) | 
 | B | Ribonuc_red_lgN | e3uusB3   | A: alpha arrays | X: Alpha helical domain of ribonucleotide reductases (From Topology) | H: Alpha helical domain of ribonucleotide reductases (From Topology) | T: Alpha helical domain of ribonucleotide reductases | F: Ribonuc_red_lgN | ECOD (1.6) | 
 | B | Ribonuc_red_lgC | e3uusB2   | A: a/b barrels | X: Ten stranded beta/alpha barrel (From Topology) | H: Ten stranded beta/alpha barrel (From Topology) | T: Ten stranded beta/alpha barrel | F: Ribonuc_red_lgC | ECOD (1.6) | 
 | A | ATP-cone_1 | e3uusA1   | A: alpha arrays | X: RuvA-C | H: ATP cone (From Topology) | T: ATP cone | F: ATP-cone_1 | ECOD (1.6) | 
 | A | Ribonuc_red_lgN | e3uusA3   | A: alpha arrays | X: Alpha helical domain of ribonucleotide reductases (From Topology) | H: Alpha helical domain of ribonucleotide reductases (From Topology) | T: Alpha helical domain of ribonucleotide reductases | F: Ribonuc_red_lgN | ECOD (1.6) | 
 | A | Ribonuc_red_lgC | e3uusA2   | A: a/b barrels | X: Ten stranded beta/alpha barrel (From Topology) | H: Ten stranded beta/alpha barrel (From Topology) | T: Ten stranded beta/alpha barrel | F: Ribonuc_red_lgC | ECOD (1.6) |