- Classes: Alpha and beta proteins (a+b)
 - Folds: Ribosomal protein L9 C-domain
 - Superfamilies: Ribosomal protein L9 C-domain
 - Families: Ribosomal protein L9 C-domain
 
Protein Domains:
- Ribosomal protein L9 C-domain
- [A2]
 - [ABCDEFGHIJKLMNOPQRSTUVWXYZabcd][a](abc), [ABCDEFGHIJKLMNOPQRSTUVWXYZabcdef](ab), [ABCDEFGHIJKLMNOPQRSTUVWXYZab](ab)
 
 
	* [ ] : Polypeptide  - [AB] : Protein, [ab] : Small peptide
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
