| F | PurA | e5fgoF1 | A: a+b two layers | X: ssDNA-binding transcriptional regulator domain-like | H: ssDNA-binding transcriptional regulator domain (From Topology) | T: ssDNA-binding transcriptional regulator domain | F: PurA | ECOD (1.6) |
| E | PurA | e5fgoE1 | A: a+b two layers | X: ssDNA-binding transcriptional regulator domain-like | H: ssDNA-binding transcriptional regulator domain (From Topology) | T: ssDNA-binding transcriptional regulator domain | F: PurA | ECOD (1.6) |
| D | PurA | e5fgoD1 | A: a+b two layers | X: ssDNA-binding transcriptional regulator domain-like | H: ssDNA-binding transcriptional regulator domain (From Topology) | T: ssDNA-binding transcriptional regulator domain | F: PurA | ECOD (1.6) |
| C | PurA | e5fgoC1 | A: a+b two layers | X: ssDNA-binding transcriptional regulator domain-like | H: ssDNA-binding transcriptional regulator domain (From Topology) | T: ssDNA-binding transcriptional regulator domain | F: PurA | ECOD (1.6) |
| B | PurA | e5fgoB1 | A: a+b two layers | X: ssDNA-binding transcriptional regulator domain-like | H: ssDNA-binding transcriptional regulator domain (From Topology) | T: ssDNA-binding transcriptional regulator domain | F: PurA | ECOD (1.6) |
| A | PurA | e5fgoA1 | A: a+b two layers | X: ssDNA-binding transcriptional regulator domain-like | H: ssDNA-binding transcriptional regulator domain (From Topology) | T: ssDNA-binding transcriptional regulator domain | F: PurA | ECOD (1.6) |