Table 1.
Comparison of the three-dimensional structures of the endonuclease domains of Rep from ssDNA viruses
| Virus (family) | PDB ID | No. of C-α | No. of residues | Motifs | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| β1 | β2 | β3 | β4 | β5 | αA | αB | αC | I | II | III | |||
| Tomato yellow leaf curl virus-Sardinia (Geminiviridae) | 1l2 m | 118 | 6 | 10 | 9 | 5 | 3 | 10 | – | 8 | FLTY | HUH | YXXK |
| Porcine circovirus type 2 (Circoviridae) | 2hw0 | 115 | 8 | 12 | 8 | 4 | 6 | 8 | 8 | 11 | VFTL | HUQ | YXXK |
| Porcine circovirus type 2 (Circoviridae) | 5xor | 98 | 8 | 12 | 8 | 4 | 6 | 8 | 8 | 11 | VFTL | HUQ | YXXK |
| Faba bean necrotic yellow virus (Nanoviridae) | 2hwt | 94 | 6 | 8 | 8 | 3 | 5 | – | 7 | – | CFTL | HUQ | YXXKE/D |
The PDB structures were downloaded from www.rcsb.org. Except for TPDB ID 5xor that is a crystal structure, all the others are solution structures solved using NMR