| IPR036854 | Photosystem II protein D1/D2 superfamily | Homologous Superfamily |
| IPR005867 | Photosystem II protein D1 | Family |
| IPR000484 | Photosynthetic reaction centre, L/M | Family |
| IPR055265 | Photosynthetic reaction centre, L/M, conserved site | Conserved Site |
| IPR055266 | Photosystem II protein D1/D2 | Family |
| IPR036001 | Photosystem antenna protein-like superfamily | Homologous Superfamily |
| IPR000932 | Photosystem antenna protein-like | Family |
| IPR017486 | Photosystem II CP47 reaction centre protein | Family |
| IPR005868 | Photosystem II D2 | Family |
| IPR036854 | Photosystem II protein D1/D2 superfamily | Homologous Superfamily |
| IPR000484 | Photosynthetic reaction centre, L/M | Family |
| IPR055265 | Photosynthetic reaction centre, L/M, conserved site | Conserved Site |
| IPR055266 | Photosystem II protein D1/D2 | Family |
| IPR013081 | Photosystem II cytochrome b559, N-terminal | Domain |
| IPR006217 | Photosystem II cytochrome b559, alpha subunit | Family |
| IPR013082 | Photosystem II cytochrome b559, alpha subunit, lumenal region | Domain |
| IPR037025 | Photosystem II cytochrome b559, alpha subunit superfamily | Homologous Superfamily |
| IPR006216 | Photosystem II cytochrome b559, conserved site | Conserved Site |
| IPR006241 | Photosystem II cytochrome b559, beta subunit | Family |
| IPR013081 | Photosystem II cytochrome b559, N-terminal | Domain |
| IPR006216 | Photosystem II cytochrome b559, conserved site | Conserved Site |
| G [auth H] | IPR036863 | Photosystem II reaction centre protein H superfamily | Homologous Superfamily |
| G [auth H] | IPR001056 | Photosystem II reaction centre protein H | Family |
| H [auth I] | IPR037271 | Photosystem II PsbI superfamily | Homologous Superfamily |
| H [auth I] | IPR003686 | Photosystem II PsbI | Family |
| J [auth K] | IPR037270 | Photosystem II PsbK superfamily | Homologous Superfamily |
| J [auth K] | IPR003687 | Photosystem II PsbK | Family |
| K [auth L] | IPR003372 | Photosystem II PsbL | Family |
| K [auth L] | IPR037266 | Photosystem II PsbL superfamily | Homologous Superfamily |
| L [auth M] | IPR007826 | Photosystem II PsbM | Family |
| L [auth M] | IPR037269 | Photosystem II PsbM superfamily | Homologous Superfamily |
| M [auth O] | IPR011250 | Outer membrane protein/outer membrane enzyme PagP, beta-barrel | Homologous Superfamily |
| M [auth O] | IPR002628 | Photosystem II extrinsic protein O | Family |
| N [auth P] | IPR002683 | PsbP, C-terminal | Domain |
| N [auth P] | IPR016123 | Mog1/PsbP, alpha/beta/alpha sandwich | Homologous Superfamily |
| O [auth Q] | IPR008797 | Oxygen-evolving enhancer protein 3 | Family |
| O [auth Q] | IPR054099 | Oxygen-evolving enhancer protein 3, plants | Family |
| O [auth Q] | IPR023222 | PsbQ-like domain superfamily | Homologous Superfamily |
| P [auth T] | IPR001743 | Photosystem II PsbT | Family |
| P [auth T] | IPR037268 | Photosystem II PsbT superfamily | Homologous Superfamily |
| Q [auth W] | IPR009806 | Photosystem II PsbW, class 2 | Family |
| R [auth X] | IPR009518 | Photosystem II PsbX | Family |
| S [auth U] | IPR040296 | Photosystem II 5kDa protein, chloroplastic | Family |
| I [auth J] | IPR002682 | Photosystem II PsbJ | Family |
| I [auth J] | IPR037267 | Photosystem II PsbJ superfamily | Homologous Superfamily |
| IPR036001 | Photosystem antenna protein-like superfamily | Homologous Superfamily |
| IPR000932 | Photosystem antenna protein-like | Family |
| IPR005869 | Photosystem II CP43 reaction centre protein | Family |
| IPR044900 | Photosystem II CP43 reaction centre protein superfamily | Homologous Superfamily |