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Cryo-EM structure of cryptophyte photosystem I

Source organism: Chroomonas placoidea
Biochemical function: 4 iron, 4 sulfur cluster binding
Biological process: photosynthesis, light harvesting
Cellular component: membrane

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EC 1.97.1.12: Photosystem I

Reaction catalysed:
Reduced plastocyanin + oxidized ferredoxin + light = oxidized plastocyanin + reduced ferredoxin
Systematic name:
Plastocyanin:ferredoxin oxidoreductase (light-dependent)

GO terms

Sequence families

Pfam Protein families (Pfam)
PF00223
Domain description: Photosystem I psaA/psaB protein
Occurring in:
  1. Photosystem I P700 chlorophyll a apoprotein A1
  2. Photosystem I P700 chlorophyll a apoprotein A2
The deposited structure of PDB entry 7y7b contains 1 copy of Pfam domain PF00223 (Photosystem I psaA/psaB protein) in Photosystem I P700 chlorophyll a apoprotein A1. Showing 1 copy in chain J [auth A].
The deposited structure of PDB entry 7y7b contains 1 copy of Pfam domain PF00223 (Photosystem I psaA/psaB protein) in Photosystem I P700 chlorophyll a apoprotein A2. Showing 1 copy in chain K [auth B].

PF07465
Domain description: Photosystem I protein M (PsaM)
Occurring in:
  1. Photosystem I reaction center subunit XII
The deposited structure of PDB entry 7y7b contains 1 copy of Pfam domain PF07465 (Photosystem I protein M (PsaM)) in Photosystem I reaction center subunit XII. Showing 1 copy in chain T [auth M].

PF02605
Domain description: Photosystem I reaction centre subunit XI
Occurring in:
  1. Photosystem I reaction center subunit XI
The deposited structure of PDB entry 7y7b contains 1 copy of Pfam domain PF02605 (Photosystem I reaction centre subunit XI) in Photosystem I reaction center subunit XI. Showing 1 copy in chain S [auth L].

PF01241
Domain description: Photosystem I psaG / psaK
Occurring in:
  1. Photosystem I reaction center subunit PsaK
The deposited structure of PDB entry 7y7b contains 1 copy of Pfam domain PF01241 (Photosystem I psaG / psaK) in Photosystem I reaction center subunit PsaK. Showing 1 copy in chain R [auth K].

PF01701
Domain description: Photosystem I reaction centre subunit IX / PsaJ
Occurring in:
  1. Photosystem I reaction center subunit IX
The deposited structure of PDB entry 7y7b contains 1 copy of Pfam domain PF01701 (Photosystem I reaction centre subunit IX / PsaJ) in Photosystem I reaction center subunit IX. Showing 1 copy in chain Q [auth J].

PF00796
Domain description: Photosystem I reaction centre subunit VIII
Occurring in:
  1. Photosystem I reaction center subunit VIII
The deposited structure of PDB entry 7y7b contains 1 copy of Pfam domain PF00796 (Photosystem I reaction centre subunit VIII) in Photosystem I reaction center subunit VIII. Showing 1 copy in chain P [auth I].

PF02507
Domain description: Photosystem I reaction centre subunit III
Occurring in:
  1. Photosystem I reaction center subunit III
The deposited structure of PDB entry 7y7b contains 1 copy of Pfam domain PF02507 (Photosystem I reaction centre subunit III) in Photosystem I reaction center subunit III. Showing 1 copy in chain O [auth F].

PF02427
Domain description: Photosystem I reaction centre subunit IV / PsaE
Occurring in:
  1. Photosystem I reaction center subunit IV
The deposited structure of PDB entry 7y7b contains 1 copy of Pfam domain PF02427 (Photosystem I reaction centre subunit IV / PsaE) in Photosystem I reaction center subunit IV. Showing 1 copy in chain N [auth E].

PF02531
Domain description: PsaD
Occurring in:
  1. Photosystem I reaction center subunit II
The deposited structure of PDB entry 7y7b contains 1 copy of Pfam domain PF02531 (PsaD) in Photosystem I reaction center subunit II. Showing 1 copy in chain M [auth D].

PF12838
Domain description: 4Fe-4S dicluster domain
Occurring in:
  1. Photosystem I iron-sulfur center
The deposited structure of PDB entry 7y7b contains 1 copy of Pfam domain PF12838 (4Fe-4S dicluster domain) in Photosystem I iron-sulfur center. Showing 1 copy in chain L [auth C].

InterPro InterPro annotations
IPR001280
Domain description: Photosystem I PsaA/PsaB
Occurring in:
  1. Photosystem I P700 chlorophyll a apoprotein A1
  2. Photosystem I P700 chlorophyll a apoprotein A2
IPR022796
Domain description: Chlorophyll A-B binding protein
Occurring in:
  1. ACPI-1
  2. ACPI-2
  3. ACPI-3
  4. ACPI-4
  5. ACPI-5
  6. ACPI-6
  7. ACPI-7
  8. ACPI-8
  9. ACPI-12
  10. ACPI-13/10
  11. ACPI-14
  12. ACPI-9
  13. ACPI-11
IPR001344
Domain description: Chlorophyll A-B binding protein, plant and chromista
Occurring in:
  1. ACPI-1
  2. ACPI-2
  3. ACPI-3
  4. ACPI-4
  5. ACPI-5
  6. ACPI-6
  7. ACPI-7
  8. ACPI-12
  9. ACPI-13/10
  10. ACPI-14
  11. ACPI-9
  12. ACPI-11
IPR001302
Domain description: Photosystem I reaction centre subunit VIII
Occurring in:
  1. Photosystem I reaction center subunit VIII
IPR036408
Domain description: Photosystem I PsaA/PsaB superfamily
Occurring in:
  1. Photosystem I P700 chlorophyll a apoprotein A1
  2. Photosystem I P700 chlorophyll a apoprotein A2
IPR002615
Domain description: Photosystem I PsaJ, reaction centre subunit IX
Occurring in:
  1. Photosystem I reaction center subunit IX
IPR017896
Domain description: 4Fe-4S ferredoxin-type, iron-sulphur binding domain
Occurring in:
  1. Photosystem I iron-sulfur center
IPR010010
Domain description: Photosystem I PsaM, reaction centre
Occurring in:
  1. Photosystem I reaction center subunit XII
IPR022980
Domain description: Photosystem I, reaction centre subunit XI
Occurring in:
  1. Photosystem I reaction center subunit XI
IPR036592
Domain description: Photosystem I PsaL, reaction centre subunit XI superfamily
Occurring in:
  1. Photosystem I reaction center subunit XI
IPR000549
Domain description: Photosystem I reaction center subunit V/PsaK
Occurring in:
  1. Photosystem I reaction center subunit PsaK
IPR017492
Domain description: Photosystem I reaction center subunit PsaK
Occurring in:
  1. Photosystem I reaction center subunit PsaK
IPR003666
Domain description: Photosystem I PsaF, reaction centre subunit III
Occurring in:
  1. Photosystem I reaction center subunit III
IPR003375
Domain description: Photosystem I PsaE, reaction centre subunit IV
Occurring in:
  1. Photosystem I reaction center subunit IV
IPR003685
Domain description: Photosystem I PsaD
Occurring in:
  1. Photosystem I reaction center subunit II
IPR017491
Domain description: Photosystem I protein PsaC
Occurring in:
  1. Photosystem I iron-sulfur center
IPR006244
Domain description: Photosystem I PsaB
Occurring in:
  1. Photosystem I P700 chlorophyll a apoprotein A2
IPR020586
Domain description: Photosystem I PsaA/PsaB, conserved site
Occurring in:
  1. Photosystem I P700 chlorophyll a apoprotein A1
  2. Photosystem I P700 chlorophyll a apoprotein A2
IPR017498
Domain description: Photosystem I PsaO
Occurring in:
  1. PsaO
IPR037279
Domain description: Photosystem I PsaM, reaction centre superfamily
Occurring in:
  1. Photosystem I reaction center subunit XII
IPR003757
Domain description: Photosystem I PsaL, reaction centre subunit XI
Occurring in:
  1. Photosystem I reaction center subunit XI
IPR035982
Domain description: Photosystem I reaction centre subunit PsaK superfamily
Occurring in:
  1. Photosystem I reaction center subunit PsaK
IPR037101
Domain description: Photosystem I reaction centre subunit PsaK
Occurring in:
  1. Photosystem I reaction center subunit PsaK
IPR036062
Domain description: Photosystem I PsaJ, reaction centre subunit IX superfamily
Occurring in:
  1. Photosystem I reaction center subunit IX
IPR036357
Domain description: Photosystem I reaction centre subunit VIII superfamily
Occurring in:
  1. Photosystem I reaction center subunit VIII
IPR036577
Domain description: Photosystem I PsaF, reaction centre subunit III superfamily
Occurring in:
  1. Photosystem I reaction center subunit III
IPR008990
Domain description: Electron transport accessory-like domain superfamily
Occurring in:
  1. Photosystem I reaction center subunit IV
IPR036579
Domain description: Photosystem I, reaction centre subunit PsaD superfamily
Occurring in:
  1. Photosystem I reaction center subunit II
IPR017900
Domain description: 4Fe-4S ferredoxin, iron-sulphur binding, conserved site
Occurring in:
  1. Photosystem I iron-sulfur center
IPR006243
Domain description: Photosystem I PsaA
Occurring in:
  1. Photosystem I P700 chlorophyll a apoprotein A1

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