Any feedback?
Please rate this page
(all_enzymes.php)
(0/150)

BRENDA support

1.97.1.12: photosystem I

This is an abbreviated version!
For detailed information about photosystem I, go to the full flat file.

Word Map on EC 1.97.1.12

Reaction

reduced plastocyanin
+
oxidized ferredoxin
 +
hnu
=
oxidized plastocyanin
 +
reduced ferredoxin

Synonyms

OsCRR6, photosystem I P700 chlorophyll a apoprotein A2, PS I, PS-I, PS-I complex, PsaB, PsaF, PSI, PSI core complex

ECTree

     1 Oxidoreductases
         1.97 Other oxidoreductases
             1.97.1 Sole sub-subclass for oxidoreductases that do not belong in the other subclasses
                1.97.1.12 photosystem I

Inhibitors

Inhibitors on EC 1.97.1.12 - photosystem I

Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
3-(3,4-dichlorophenyl)-1,1-dimethylurea
-
DCMU
Ag(I)-substituted plastocyanin
-
competitive inhibitor of the reaction with normal Cu-containg plastocyanin
-
gallium ferredoxin
-
superoxide
Psychotria henryi
-
superoxide generated in the chloroplast stroma causes photoinhibition of photosystem I, superoxide accelerates photoinhibition of PSI
Zn(II)-substituted plastocyanin
-
competitive inhibitor of the reaction with normal Cu-containg plastocyanin
-
additional information
Psychotria henryi
-
treatment of detached leaves with constant high light in the presence of methyl viologen (MV) or a soluble alpha-tocopherol analogue, 2,2,5,7,8-pentamethyl-6-chromanol (PMC). MV significantly depresses photochemical quantum yields in PSI and PSII when compared to PMC. Methyl viologen not only strongly downregulates electron flow from PSII to PSI (ETRII), but also intensely inhibits circular electron transport in the shade-establishing species. Activation of circular electron flow cannot prevent PSI photoinhibition in Psychotria henryi. Strong PSII photoinhibition by MV. Different mechanisms of PSI photoinhibition in higher plants, overview
-