[A2B2][a2]
- Classes: All beta proteins
- Folds: Acid proteases
- Superfamilies: Acid proteases
- Families: Pepsin-like
Protein Domains:
- Cathepsin D
- automated matches
* [ ] : Polypeptide - [AB] : Protein, [ab] : Small peptide
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA