| PF00223 | Photosystem I psaA/psaB protein (PsaA_PsaB) | Photosystem I psaA/psaB protein | - | Family |
| PF00223 | Photosystem I psaA/psaB protein (PsaA_PsaB) | Photosystem I psaA/psaB protein | - | Family |
| PF00037 | 4Fe-4S binding domain (Fer4) | 4Fe-4S binding domain | Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. | Domain |
| G [auth J] | PF01701 | Photosystem I reaction centre subunit IX / PsaJ (PSI_PsaJ) | Photosystem I reaction centre subunit IX / PsaJ | - | Family |
| H [auth M] | PF07465 | Photosystem I protein M (PsaM) (PsaM) | Photosystem I protein M (PsaM) | - | Family |
| I [auth 1] | PF00504 | Chlorophyll A-B binding protein (Chloroa_b-bind) | Chlorophyll A-B binding protein | - | Family |
| J [auth 2] | PF00504 | Chlorophyll A-B binding protein (Chloroa_b-bind) | Chlorophyll A-B binding protein | - | Family |
| L [auth 4] | PF00504 | Chlorophyll A-B binding protein (Chloroa_b-bind) | Chlorophyll A-B binding protein | - | Family |
| M [auth 5] | PF00504 | Chlorophyll A-B binding protein (Chloroa_b-bind) | Chlorophyll A-B binding protein | - | Family |
| N [auth 6] | PF00504 | Chlorophyll A-B binding protein (Chloroa_b-bind) | Chlorophyll A-B binding protein | - | Family |
| O [auth 7] | PF00504 | Chlorophyll A-B binding protein (Chloroa_b-bind) | Chlorophyll A-B binding protein | - | Family |
| P [auth 8] | PF00504 | Chlorophyll A-B binding protein (Chloroa_b-bind) | Chlorophyll A-B binding protein | - | Family |
| Q [auth 9] | PF00504 | Chlorophyll A-B binding protein (Chloroa_b-bind) | Chlorophyll A-B binding protein | - | Family |
| R [auth 10] | PF00504 | Chlorophyll A-B binding protein (Chloroa_b-bind) | Chlorophyll A-B binding protein | - | Family |
S [auth 11], T [auth 12], U [auth 13] | PF00504 | Chlorophyll A-B binding protein (Chloroa_b-bind) | Chlorophyll A-B binding protein | - | Family |