BRENDA - Enzyme Database show

Subunit composition of photosystem I complex that catalyzes light-dependent transfer of electrons from plastocyanin to ferredoxin

Takabe, T.; Iwasaki, Y.; Hibino, T.; Ando, T.; J. Biochem. 110, 622-627 (1991)

Data extracted from this reference:

Natural Substrates/ Products (Substrates)
EC Number
Natural Substrates
Organism
Commentary (Nat. Sub.)
Natural Products
Commentary (Nat. Pro.)
Organism (Nat. Pro.)
Reversibility
1.97.1.12
reduced plastocyanin + oxidized ferredoxin + hv
Cucumis sativus
-
oxidized plastocyanin + reduced ferredoxin
-
-
?
Organism
EC Number
Organism
Primary Accession No. (UniProt)
Commentary
Textmining
1.97.1.12
Cucumis sativus
P42048
photosystem I reaction center subunit III, plastocyanin-docking protein
-
Source Tissue
EC Number
Source Tissue
Commentary
Organism
Textmining
1.97.1.12
cotyledon
-
Cucumis sativus
-
Substrates and Products (Substrate)
EC Number
Substrates
Commentary Substrates
Literature (Substrates)
Organism
Products
Commentary (Products)
Literature (Products)
Organism (Products)
Reversibility
1.97.1.12
reduced plastocyanin + oxidized ferredoxin + hv
-
712315
Cucumis sativus
oxidized plastocyanin + reduced ferredoxin
-
-
-
?
Subunits
EC Number
Subunits
Commentary
Organism
1.97.1.12
More
the PSI core complex prepared from cucumber cotyledons contains 80 chlorophylls per reaction center (P700) and eight polypeptides with apparent molecular masses of 65/63, 20,19.5,18.5,17.5,7.6, and 5.8 kDa. The amount of 18.5 kDa polypeptide in the PSI complex affects the activity. When this polypeptide is largely depleted, the complex is almost inactive. The inactivation is due to inhibition of electron transfer from plastocyanin to photooxidized P700. Chemical cross-linking and N-terminal amino acid sequencing experiments indicate that the 18.5-kDa polypeptide is the plastocyanin-docking protein and the psaF gene product
Cucumis sativus
Natural Substrates/ Products (Substrates) (protein specific)
EC Number
Natural Substrates
Organism
Commentary (Nat. Sub.)
Natural Products
Commentary (Nat. Pro.)
Organism (Nat. Pro.)
Reversibility
1.97.1.12
reduced plastocyanin + oxidized ferredoxin + hv
Cucumis sativus
-
oxidized plastocyanin + reduced ferredoxin
-
-
?
Source Tissue (protein specific)
EC Number
Source Tissue
Commentary
Organism
Textmining
1.97.1.12
cotyledon
-
Cucumis sativus
-
Substrates and Products (Substrate) (protein specific)
EC Number
Substrates
Commentary Substrates
Literature (Substrates)
Organism
Products
Commentary (Products)
Literature (Products)
Organism (Products)
Reversibility
1.97.1.12
reduced plastocyanin + oxidized ferredoxin + hv
-
712315
Cucumis sativus
oxidized plastocyanin + reduced ferredoxin
-
-
-
?
Subunits (protein specific)
EC Number
Subunits
Commentary
Organism
1.97.1.12
More
the PSI core complex prepared from cucumber cotyledons contains 80 chlorophylls per reaction center (P700) and eight polypeptides with apparent molecular masses of 65/63, 20,19.5,18.5,17.5,7.6, and 5.8 kDa. The amount of 18.5 kDa polypeptide in the PSI complex affects the activity. When this polypeptide is largely depleted, the complex is almost inactive. The inactivation is due to inhibition of electron transfer from plastocyanin to photooxidized P700. Chemical cross-linking and N-terminal amino acid sequencing experiments indicate that the 18.5-kDa polypeptide is the plastocyanin-docking protein and the psaF gene product
Cucumis sativus