- Classes: Low resolution protein structures
 - Folds: Photosystems
 - Superfamilies: Photosystems
 - Families: Photosystems
 
Protein Domains:
- Chlorophyll a-b binding protein
- [A]
 
 - Photosystem II
- ---
 - [ABCDEFG], [A2B2C2D2E2F2G2H2]
 
 
	* [ ] : Polypeptide  - [AB] : Protein, [ab] : Small peptide
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
