| N [auth J] | IPR002615 | Photosystem I PsaJ, reaction centre subunit IX | Family |
| N [auth J] | IPR036062 | Photosystem I PsaJ, reaction centre subunit IX superfamily | Homologous Superfamily |
| M [auth I] | IPR036357 | Photosystem I reaction centre subunit VIII superfamily | Homologous Superfamily |
| M [auth I] | IPR001302 | Photosystem I reaction centre subunit VIII | Family |
| L [auth F] | IPR036577 | Photosystem I PsaF, reaction centre subunit III superfamily | Homologous Superfamily |
| L [auth F] | IPR003666 | Photosystem I PsaF, reaction centre subunit III | Family |
| K [auth E] | IPR008990 | Electron transport accessory-like domain superfamily | Homologous Superfamily |
| K [auth E] | IPR003375 | Photosystem I PsaE, reaction centre subunit IV | Family |
| J [auth D] | IPR003685 | Photosystem I PsaD | Family |
| J [auth D] | IPR036579 | Photosystem I, reaction centre subunit PsaD superfamily | Homologous Superfamily |
| I [auth C] | IPR017900 | 4Fe-4S ferredoxin, iron-sulphur binding, conserved site | Conserved Site |
| I [auth C] | IPR050157 | Photosystem I iron-sulfur center | Family |
| I [auth C] | IPR017896 | 4Fe-4S ferredoxin-type, iron-sulphur binding domain | Domain |
| I [auth C] | IPR017491 | Photosystem I protein PsaC | Family |
| H [auth B] | IPR036408 | Photosystem I PsaA/PsaB superfamily | Homologous Superfamily |
| H [auth B] | IPR001280 | Photosystem I PsaA/PsaB | Family |
| H [auth B] | IPR006244 | Photosystem I PsaB | Family |
| H [auth B] | IPR020586 | Photosystem I PsaA/PsaB, conserved site | Conserved Site |
| G [auth A] | IPR006243 | Photosystem I PsaA | Family |
| G [auth A] | IPR036408 | Photosystem I PsaA/PsaB superfamily | Homologous Superfamily |
| G [auth A] | IPR001280 | Photosystem I PsaA/PsaB | Family |
| G [auth A] | IPR020586 | Photosystem I PsaA/PsaB, conserved site | Conserved Site |
| Q [auth X] | IPR036243 | Photosystem I PsaX superfamily | Homologous Superfamily |
| Q [auth X] | IPR012986 | Photosystem I PsaX | Family |
| P [auth M] | IPR010010 | Photosystem I PsaM, reaction centre | Family |
| P [auth M] | IPR037279 | Photosystem I PsaM, reaction centre superfamily | Homologous Superfamily |
| O [auth K] | IPR037101 | Photosystem I reaction centre subunit PsaK | Homologous Superfamily |
| O [auth K] | IPR000549 | Photosystem I reaction center subunit V/PsaK | Family |
| O [auth K] | IPR035982 | Photosystem I reaction centre subunit PsaK superfamily | Homologous Superfamily |
| O [auth K] | IPR017492 | Photosystem I reaction center subunit PsaK | Family |
A [auth 3], B [auth 4], C [auth 5], D [auth 6], E [auth 2], F [auth 1], R [auth c], S [auth d], T [auth e], U [auth f], V [auth g], W [auth b], X [auth a] | IPR036001 | Photosystem antenna protein-like superfamily | Homologous Superfamily |
A [auth 3], B [auth 4], C [auth 5], D [auth 6], E [auth 2], F [auth 1], R [auth c], S [auth d], T [auth e], U [auth f], V [auth g], W [auth b], X [auth a] | IPR000932 | Photosystem antenna protein-like | Family |