| A | RVT_thumb | e3v81A7   | A: alpha bundles | X: helical bundle domain in reverse transcriptase-like polymerases (From Topology) | H: helical bundle domain in reverse transcriptase-like polymerases (From Topology) | T: helical bundle domain in reverse transcriptase-like polymerases | F: RVT_thumb | ECOD (1.6) | 
 | A | RVT_1 | e3v81A8   | A: a+b two layers | X: Alpha-beta plaits | H: Adenylyl and guanylyl cyclase catalytic domain-like | T: Adenylyl and guanylyl cyclase catalytic domain-like | F: RVT_1 | ECOD (1.6) | 
 | A | RNase_H | e3v81A6   | A: mixed a+b and a/b | X: Ribonuclease H-like | H: Ribonuclease H-like (From Topology) | T: Ribonuclease H-like | F: RNase_H | ECOD (1.6) | 
 | A | RVT_connect | e3v81A5   | A: mixed a+b and a/b | X: Ribonuclease H-like | H: RNaseH-like domain in reverse transcriptase (From Topology) | T: RNaseH-like domain in reverse transcriptase | F: RVT_connect | ECOD (1.6) | 
 | C | RVT_thumb | e3v81C7   | A: alpha bundles | X: helical bundle domain in reverse transcriptase-like polymerases (From Topology) | H: helical bundle domain in reverse transcriptase-like polymerases (From Topology) | T: helical bundle domain in reverse transcriptase-like polymerases | F: RVT_thumb | ECOD (1.6) | 
 | C | RVT_1 | e3v81C8   | A: a+b two layers | X: Alpha-beta plaits | H: Adenylyl and guanylyl cyclase catalytic domain-like | T: Adenylyl and guanylyl cyclase catalytic domain-like | F: RVT_1 | ECOD (1.6) | 
 | C | RNase_H | e3v81C6   | A: mixed a+b and a/b | X: Ribonuclease H-like | H: Ribonuclease H-like (From Topology) | T: Ribonuclease H-like | F: RNase_H | ECOD (1.6) | 
 | C | RVT_connect | e3v81C5   | A: mixed a+b and a/b | X: Ribonuclease H-like | H: RNaseH-like domain in reverse transcriptase (From Topology) | T: RNaseH-like domain in reverse transcriptase | F: RVT_connect | ECOD (1.6) | 
 | B | RVT_thumb | e3v81B2   | A: alpha bundles | X: helical bundle domain in reverse transcriptase-like polymerases (From Topology) | H: helical bundle domain in reverse transcriptase-like polymerases (From Topology) | T: helical bundle domain in reverse transcriptase-like polymerases | F: RVT_thumb | ECOD (1.6) | 
 | B | RVT_1 | e3v81B6   | A: a+b two layers | X: Alpha-beta plaits | H: Adenylyl and guanylyl cyclase catalytic domain-like | T: Adenylyl and guanylyl cyclase catalytic domain-like | F: RVT_1 | ECOD (1.6) | 
 | B | RVT_connect | e3v81B5   | A: mixed a+b and a/b | X: Ribonuclease H-like | H: RNaseH-like domain in reverse transcriptase (From Topology) | T: RNaseH-like domain in reverse transcriptase | F: RVT_connect | ECOD (1.6) | 
 | D | RVT_thumb | e3v81D2   | A: alpha bundles | X: helical bundle domain in reverse transcriptase-like polymerases (From Topology) | H: helical bundle domain in reverse transcriptase-like polymerases (From Topology) | T: helical bundle domain in reverse transcriptase-like polymerases | F: RVT_thumb | ECOD (1.6) | 
 | D | RVT_1 | e3v81D6   | A: a+b two layers | X: Alpha-beta plaits | H: Adenylyl and guanylyl cyclase catalytic domain-like | T: Adenylyl and guanylyl cyclase catalytic domain-like | F: RVT_1 | ECOD (1.6) | 
 | D | RVT_connect | e3v81D5   | A: mixed a+b and a/b | X: Ribonuclease H-like | H: RNaseH-like domain in reverse transcriptase (From Topology) | T: RNaseH-like domain in reverse transcriptase | F: RVT_connect | ECOD (1.6) |