Table 1. Populations of the different levels in the CATH hierarchy.
| Class | 1 | 2 | 3 | 4 | 5 | Total |
|---|---|---|---|---|---|---|
| A | 5 | 19 | 13 | 1 | n/a | 38 |
| T | 219 | 133 | 346 | 77 | n/a | 775 |
| H | 381 | 270 | 653 | 82 | n/a | 1386 |
| S | 770 | 768 | 1647 | 100 | 850 | 3285 |
| All | 7153 | 10 112 | 16 279 | 743 | 7881 | 34 287 |
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