- Classes: Membrane and cell surface proteins and peptides
- Folds: Bacterial photosystem II reaction centre, L and M subunits
- Superfamilies: Bacterial photosystem II reaction centre, L and M subunits
- Families: Bacterial photosystem II reaction centre, L and M subunits
Protein Domains:
- L (light) subunit
- [ABC], [ABCD]
- [ABCD], [A2B2C2D2]
- [ABCD]
- M (medium) subunit
- [ABC], [ABCD]
- [ABCD], [A2B2C2D2]
- [ABCD]
- Photosystem II reaction center d2 protein PsbD2
- [A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2], [ABCDEFGHIJKLMNOPQR], [ABCDEFGHIJKLMNO], [ABCDEFGHIJKLMNOPQ]
- [A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2][a2]
- Photosystem Q(B) protein 1, PsbA1
- [A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2]
- [A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2S2T], [A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2][a2]
- automated matches
- [ABCD], [A17B17CDEF][a16]
- [A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2S2T2U2V2W2X2Y2Z2][a2b2]
- [A10B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2S2T2U2V2W2X2]
- [ABC]
- [A15B15CDEF]
- [A14B14CDEF], [A16B16CDE]
- [ABCD]
- [ABCDEFGHIJKLM]
- [A16B16CDEF], [A16B16CDEFG]
- [ABCDEFGHIJKLMNOPQR], [ABCDEFGHIJKLMNO], [ABCDEFGHIJKLMNOPQ]
- [A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2S2T], [A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2S2], [ABCDEFGHIJKLMNOPQRST], [ABCDEFGHIJKLM][a], [ABCDEFGHIJKLMNOPQ][a]
- [A13B8C6D3EFGHIJ]
* [ ] : Polypeptide - [AB] : Protein, [ab] : Small peptide
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA