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
Biochemical function:
Biological process:
Cellular component:
Sequence families
Protein families (Pfam)
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF00504 (Chlorophyll A-B binding protein) in Chlorophyll a-b binding protein 6, chloroplastic. Showing 1 copy in chain A [auth 1].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_1_1_Pfam_PF00504_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF00504 (Chlorophyll A-B binding protein)</span> in <span class='highlight'>Chlorophyll a-b binding protein 6, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>A [auth 1]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF00504 (Chlorophyll A-B binding protein) in Chlorophyll a-b binding protein, chloroplastic. Showing 1 copy in chain B [auth 2].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_2_2_Pfam_PF00504_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF00504 (Chlorophyll A-B binding protein)</span> in <span class='highlight'>Chlorophyll a-b binding protein, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>B [auth 2]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF00504 (Chlorophyll A-B binding protein) in Chlorophyll a-b binding protein, chloroplastic. Showing 1 copy in chain C [auth 3].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_3_3_Pfam_PF00504_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF00504 (Chlorophyll A-B binding protein)</span> in <span class='highlight'>Chlorophyll a-b binding protein, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>C [auth 3]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF00504 (Chlorophyll A-B binding protein) in Chlorophyll a-b binding protein P4, chloroplastic. Showing 1 copy in chain D [auth 4].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_4_4_Pfam_PF00504_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF00504 (Chlorophyll A-B binding protein)</span> in <span class='highlight'>Chlorophyll a-b binding protein P4, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>D [auth 4]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF01241 (Photosystem I psaG / psaK) in Photosystem I reaction center subunit V, chloroplastic. Showing 1 copy in chain K [auth G].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_11_G_Pfam_PF01241_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF01241 (Photosystem I psaG / psaK)</span> in <span class='highlight'>Photosystem I reaction center subunit V, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>K [auth G]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF01241 (Photosystem I psaG / psaK) in Photosystem I reaction center subunit psaK, chloroplastic. Showing 1 copy in chain O [auth K].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_15_K_Pfam_PF01241_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF01241 (Photosystem I psaG / psaK)</span> in <span class='highlight'>Photosystem I reaction center subunit psaK, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>O [auth K]</span>.")
![The deposited structure of PDB entry 2wse 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 E [auth A].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_5_A_Pfam_PF00223_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF00223 (Photosystem I psaA/psaB protein)</span> in <span class='highlight'>Photosystem I P700 chlorophyll a apoprotein A1</span>. Showing 1 copy in chain <span class='highlight'>E [auth A]</span>.")
![The deposited structure of PDB entry 2wse 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 F [auth B].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_6_B_Pfam_PF00223_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF00223 (Photosystem I psaA/psaB protein)</span> in <span class='highlight'>Photosystem I P700 chlorophyll a apoprotein A2</span>. Showing 1 copy in chain <span class='highlight'>F [auth B]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF05479 (Photosystem I reaction centre subunit N (PSAN or PSI-N)) in Photosystem I-N subunit. Showing 1 copy in chain Q [auth N].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_17_N_Pfam_PF05479_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF05479 (Photosystem I reaction centre subunit N (PSAN or PSI-N))</span> in <span class='highlight'>Photosystem I-N subunit</span>. Showing 1 copy in chain <span class='highlight'>Q [auth N]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF02605 (Photosystem I reaction centre subunit XI) in Photosystem I reaction center subunit XI, chloroplastic. Showing 1 copy in chain P [auth L].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_16_L_Pfam_PF02605_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF02605 (Photosystem I reaction centre subunit XI)</span> in <span class='highlight'>Photosystem I reaction center subunit XI, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>P [auth L]</span>.")
![The deposited structure of PDB entry 2wse 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 N [auth J].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_14_J_Pfam_PF01701_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF01701 (Photosystem I reaction centre subunit IX / PsaJ)</span> in <span class='highlight'>Photosystem I reaction center subunit IX</span>. Showing 1 copy in chain <span class='highlight'>N [auth J]</span>.")
![The deposited structure of PDB entry 2wse 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 M [auth I].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_13_I_Pfam_PF00796_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF00796 (Photosystem I reaction centre subunit VIII)</span> in <span class='highlight'>Photosystem I reaction center subunit VIII</span>. Showing 1 copy in chain <span class='highlight'>M [auth I]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF03244 (Photosystem I reaction centre subunit VI) in Photosystem I reaction center subunit VI, chloroplastic. Showing 1 copy in chain L [auth H].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_12_H_Pfam_PF03244_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF03244 (Photosystem I reaction centre subunit VI)</span> in <span class='highlight'>Photosystem I reaction center subunit VI, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>L [auth H]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF02507 (Photosystem I reaction centre subunit III) in Photosystem I reaction center subunit III, chloroplastic. Showing 1 copy in chain J [auth F].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_10_F_Pfam_PF02507_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF02507 (Photosystem I reaction centre subunit III)</span> in <span class='highlight'>Photosystem I reaction center subunit III, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>J [auth F]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF02427 (Photosystem I reaction centre subunit IV / PsaE) in Photosystem I reaction center subunit IV A, chloroplastic. Showing 1 copy in chain I [auth E].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_9_E_Pfam_PF02427_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF02427 (Photosystem I reaction centre subunit IV / PsaE)</span> in <span class='highlight'>Photosystem I reaction center subunit IV A, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>I [auth E]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF02531 (PsaD) in Photosystem I reaction center subunit II, chloroplastic. Showing 1 copy in chain H [auth D].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_8_D_Pfam_PF02531_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF02531 (PsaD)</span> in <span class='highlight'>Photosystem I reaction center subunit II, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>H [auth D]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of Pfam domain PF14697 (4Fe-4S dicluster domain) in Photosystem I iron-sulfur center. Showing 1 copy in chain G [auth C].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_7_C_Pfam_PF14697_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of Pfam domain <span class='highlight'>PF14697 (4Fe-4S dicluster domain)</span> in <span class='highlight'>Photosystem I iron-sulfur center</span>. Showing 1 copy in chain <span class='highlight'>G [auth C]</span>.")
InterPro annotations
IPR036592
Domain description:
Photosystem I PsaL, reaction centre subunit XI superfamily
Occurring in:
Occurring in:
IPR036577
Domain description:
Photosystem I PsaF, reaction centre subunit III superfamily
Occurring in:
Occurring in:
IPR036062
Domain description:
Photosystem I PsaJ, reaction centre subunit IX superfamily
Occurring in:
Occurring in:
Structure domains
CATH domains
1.10.286.40
Class:
Mainly Alpha
Architecture:
Orthogonal Bundle
Topology:
GTP Cyclohydrolase I; Chain A, domain 1
Homology:
Chlorophyll a-b binding protein like
Occurring in:
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 1.10.286.40 (GTP Cyclohydrolase I; Chain A, domain 1) in Photosystem I reaction center subunit V, chloroplastic. Showing 1 copy in chain K [auth G].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_11_G_CATH_1.10.286.40_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>1.10.286.40 (GTP Cyclohydrolase I; Chain A, domain 1)</span> in <span class='highlight'>Photosystem I reaction center subunit V, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>K [auth G]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 1.10.286.40 (GTP Cyclohydrolase I; Chain A, domain 1) in Photosystem I reaction center subunit psaK, chloroplastic. Showing 1 copy in chain O [auth K].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_15_K_CATH_1.10.286.40_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>1.10.286.40 (GTP Cyclohydrolase I; Chain A, domain 1)</span> in <span class='highlight'>Photosystem I reaction center subunit psaK, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>O [auth K]</span>.")
1.20.1130.10
Class:
Mainly Alpha
Architecture:
Up-down Bundle
Topology:
Photosystem I p700 chlorophyll A apoprotein A1
Homology:
Photosystem I PsaA/PsaB
Occurring in:
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 1.20.1130.10 (Photosystem I p700 chlorophyll A apoprotein A1) in Photosystem I P700 chlorophyll a apoprotein A1. Showing 1 copy in chain E [auth A].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_5_A_CATH_1.20.1130.10_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>1.20.1130.10 (Photosystem I p700 chlorophyll A apoprotein A1)</span> in <span class='highlight'>Photosystem I P700 chlorophyll a apoprotein A1</span>. Showing 1 copy in chain <span class='highlight'>E [auth A]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 1.20.1130.10 (Photosystem I p700 chlorophyll A apoprotein A1) in Photosystem I P700 chlorophyll a apoprotein A2. Showing 1 copy in chain F [auth B].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_6_B_CATH_1.20.1130.10_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>1.20.1130.10 (Photosystem I p700 chlorophyll A apoprotein A1)</span> in <span class='highlight'>Photosystem I P700 chlorophyll a apoprotein A2</span>. Showing 1 copy in chain <span class='highlight'>F [auth B]</span>.")
4.10.1190.10
Class:
Few Secondary Structures
Architecture:
Irregular
Topology:
Chlorophyll A-B binding protein fold
Homology:
Chlorophyll A-B binding protein
Occurring in:
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 4.10.1190.10 (Chlorophyll A-B binding protein fold) in Photosystem I-N subunit. Showing 1 copy in chain Q [auth N].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_17_N_CATH_4.10.1190.10_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>4.10.1190.10 (Chlorophyll A-B binding protein fold)</span> in <span class='highlight'>Photosystem I-N subunit</span>. Showing 1 copy in chain <span class='highlight'>Q [auth N]</span>.")
1.20.1240.10
Class:
Mainly Alpha
Architecture:
Up-down Bundle
Topology:
Photosystem 1 Reaction Centre Subunit Xi; Chain: L;
Homology:
Photosystem I PsaL, reaction centre subunit XI
Occurring in:
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 1.20.1240.10 (Photosystem 1 Reaction Centre Subunit Xi; Chain: L;) in Photosystem I reaction center subunit XI, chloroplastic. Showing 1 copy in chain P [auth L].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_16_L_CATH_1.20.1240.10_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>1.20.1240.10 (Photosystem 1 Reaction Centre Subunit Xi; Chain: L;)</span> in <span class='highlight'>Photosystem I reaction center subunit XI, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>P [auth L]</span>.")
1.20.5.510
Class:
Mainly Alpha
Architecture:
Up-down Bundle
Topology:
Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homology:
Single helix bin
Occurring in:
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 1.20.5.510 (Single alpha-helices involved in coiled-coils or other helix-helix interfaces) in Photosystem I reaction center subunit IX. Showing 1 copy in chain N [auth J].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_14_J_CATH_1.20.5.510_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>1.20.5.510 (Single alpha-helices involved in coiled-coils or other helix-helix interfaces)</span> in <span class='highlight'>Photosystem I reaction center subunit IX</span>. Showing 1 copy in chain <span class='highlight'>N [auth J]</span>.")
1.20.5.220
Class:
Mainly Alpha
Architecture:
Up-down Bundle
Topology:
Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homology:
Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Occurring in:
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 1.20.5.220 (Single alpha-helices involved in coiled-coils or other helix-helix interfaces) in Photosystem I reaction center subunit VI, chloroplastic. Showing 1 copy in chain L [auth H].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_12_H_CATH_1.20.5.220_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>1.20.5.220 (Single alpha-helices involved in coiled-coils or other helix-helix interfaces)</span> in <span class='highlight'>Photosystem I reaction center subunit VI, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>L [auth H]</span>.")
1.10.8.110
Class:
Mainly Alpha
Architecture:
Orthogonal Bundle
Topology:
Helicase, Ruva Protein; domain 3
Homology:
Photosystem I PsaF, reaction centre subunit III
Occurring in:
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 1.10.8.110 (Helicase, Ruva Protein; domain 3) in Photosystem I reaction center subunit III, chloroplastic. Showing 1 copy in chain J [auth F].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_10_F_CATH_1.10.8.110_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>1.10.8.110 (Helicase, Ruva Protein; domain 3)</span> in <span class='highlight'>Photosystem I reaction center subunit III, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>J [auth F]</span>.")
2.30.30.50
Class:
Mainly Beta
Architecture:
Roll
Topology:
SH3 type barrels.
Homology:
SH3 type barrels.
Occurring in:
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 2.30.30.50 (SH3 type barrels.) in Photosystem I reaction center subunit IV A, chloroplastic. Showing 1 copy in chain I [auth E].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_9_E_CATH_2.30.30.50_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>2.30.30.50 (SH3 type barrels.)</span> in <span class='highlight'>Photosystem I reaction center subunit IV A, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>I [auth E]</span>.")
3.30.1470.10
Class:
Alpha Beta
Architecture:
2-Layer Sandwich
Topology:
Photosystem 1 Reaction Centre Subunit Ii; Chain: D;
Homology:
Photosystem I PsaD, reaction center subunit II
Occurring in:
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 3.30.1470.10 (Photosystem 1 Reaction Centre Subunit Ii; Chain: D;) in Photosystem I reaction center subunit II, chloroplastic. Showing 1 copy in chain H [auth D].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_8_D_CATH_3.30.1470.10_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>3.30.1470.10 (Photosystem 1 Reaction Centre Subunit Ii; Chain: D;)</span> in <span class='highlight'>Photosystem I reaction center subunit II, chloroplastic</span>. Showing 1 copy in chain <span class='highlight'>H [auth D]</span>.")
![The deposited structure of PDB entry 2wse contains 1 copy of CATH domain 3.30.70.20 (Alpha-Beta Plaits) in Photosystem I iron-sulfur center. Showing 1 copy in chain G [auth C].](https://www.ebi.ac.uk/pdbe/static/entry/2wse_7_C_CATH_3.30.70.20_image-200x200.png "The deposited structure of PDB entry <span class='highlight'>2wse</span> contains 1 copy of CATH domain <span class='highlight'>3.30.70.20 (Alpha-Beta Plaits)</span> in <span class='highlight'>Photosystem I iron-sulfur center</span>. Showing 1 copy in chain <span class='highlight'>G [auth C]</span>.")