[ABCD](abcdefghij)
Classes:
- All alpha proteins0
- All beta proteins0
- Alpha and beta proteins (a+b)0
- 1
- Artifacts0
- Coiled coil proteins0
- Designed proteins0
- 1
- Membrane and cell surface proteins and peptides0
- 1
- Not Classified0
- Peptides0
- Small proteins0
* Number of PDB entries of each Class
