- Classes: Low resolution protein structures
 - Folds: Proteins of incorrect, partial and unknown sequence
 - Superfamilies: Proteins of incorrect, partial and unknown sequence
 - Families: Proteins of incorrect, partial and unknown sequence
 
Protein Domains:
- Catalase
- ---
 
 - Dihydrolipoamide dehydrogenase
- ---
 
 - Glutathione reductase
- [A2]
 
 - Granulocyte-macrophage colony-stimulating factor receptor alpha fragments
- [ABC]
 
 - Hemerythrin
- ---
 
 - Hexokinase
- [A]
 - [A]
 
 - KDPG aldolase
- ---
 
 - Lactate dehydrogenase
- [A4]
 
 - Phosphoglycerate kinase
- ---
 
 - Pyruvate kinase
- ---
 
 - Serum amyloid P component, SAP
- ---
 
 - TNV coat protein
- ---
 
 
	* [ ] : Polypeptide  - [AB] : Protein, [ab] : Small peptide
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
