| A [auth a] | IPR006243 | Photosystem I PsaA | Family |
| A [auth a] | IPR036408 | Photosystem I PsaA/PsaB superfamily | Homologous Superfamily |
| A [auth a] | IPR001280 | Photosystem I PsaA/PsaB | Family |
| A [auth a] | IPR020586 | Photosystem I PsaA/PsaB, conserved site | Conserved Site |
| B [auth b] | IPR036408 | Photosystem I PsaA/PsaB superfamily | Homologous Superfamily |
| B [auth b] | IPR001280 | Photosystem I PsaA/PsaB | Family |
| B [auth b] | IPR006244 | Photosystem I PsaB | Family |
| B [auth b] | IPR020586 | Photosystem I PsaA/PsaB, conserved site | Conserved Site |
| C [auth c] | IPR017900 | 4Fe-4S ferredoxin, iron-sulphur binding, conserved site | Conserved Site |
| C [auth c] | IPR050157 | Photosystem I iron-sulfur center | Family |
| C [auth c] | IPR017896 | 4Fe-4S ferredoxin-type, iron-sulphur binding domain | Domain |
| C [auth c] | IPR017491 | Photosystem I protein PsaC | Family |
| D [auth d] | IPR003685 | Photosystem I PsaD | Family |
| D [auth d] | IPR036579 | Photosystem I, reaction centre subunit PsaD superfamily | Homologous Superfamily |
| E [auth e] | IPR008990 | Electron transport accessory-like domain superfamily | Homologous Superfamily |
| E [auth e] | IPR003375 | Photosystem I PsaE, reaction centre subunit IV | Family |
| F [auth f] | IPR036577 | Photosystem I PsaF, reaction centre subunit III superfamily | Homologous Superfamily |
| F [auth f] | IPR003666 | Photosystem I PsaF, reaction centre subunit III | Family |
| H [auth i] | IPR036357 | Photosystem I reaction centre subunit VIII superfamily | Homologous Superfamily |
| H [auth i] | IPR001302 | Photosystem I reaction centre subunit VIII | Family |
| I [auth j] | IPR002615 | Photosystem I PsaJ, reaction centre subunit IX | Family |
| I [auth j] | IPR036062 | Photosystem I PsaJ, reaction centre subunit IX superfamily | Homologous Superfamily |
| J [auth l] | IPR003757 | Photosystem I PsaL, reaction centre subunit XI | Domain |
| J [auth l] | IPR022980 | Photosystem I, reaction centre subunit XI | Family |
| J [auth l] | IPR036592 | Photosystem I PsaL, reaction centre subunit XI superfamily | Homologous Superfamily |
| K [auth m] | IPR010010 | Photosystem I PsaM, reaction centre | Family |
| K [auth m] | IPR037279 | Photosystem I PsaM, reaction centre superfamily | Homologous Superfamily |
| M [auth B] | IPR001344 | Chlorophyll A-B binding protein, plant and chromista | Family |
| M [auth B] | IPR022796 | Chlorophyll A-B binding protein | Family |
| N [auth C] | IPR001344 | Chlorophyll A-B binding protein, plant and chromista | Family |
| N [auth C] | IPR022796 | Chlorophyll A-B binding protein | Family |
| O [auth D] | IPR001344 | Chlorophyll A-B binding protein, plant and chromista | Family |
| O [auth D] | IPR022796 | Chlorophyll A-B binding protein | Family |
| Q [auth H] | IPR001344 | Chlorophyll A-B binding protein, plant and chromista | Family |
| Q [auth H] | IPR022796 | Chlorophyll A-B binding protein | Family |