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Literature summary for 4.2.1.1 extracted from

  • Ignatova, L.K.; Rudenko, N.N.; Khristin, M.S.; Ivanov, B.N.
    Heterogeneous origin of carbonic anhydrase activity of thylakoid membranes (2006), Biochemistry, 71, 525-532.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
acetazolamide increases carbonic anhydrase activity of photosystem 2 membranes at concentrations lower than 0.001 mM and suppresses this activity only at higher concentrations. Carbonic anhydrase activity of photosystem 1 membranes is suppressed Pisum sativum

Inhibitors

Inhibitors Comment Organism Structure
acetazolamide increases carbonic anhydrase activity of photosystem 2 membranes at concentrations lower than 0.001 mM and suppresses this activity only at higher concentrations. Carbonic anhydrase activity of photosystem 1 membranes is suppressed Pisum sativum
ethoxyzolamide effectively suppresses the carbonic anhydrase activity of photosystem 2 membranes. Carbonic anhydrase activity of PS1 membranes is suppressed alike by both inhibitors Pisum sativum

Localization

Localization Comment Organism GeneOntology No. Textmining
thylakoid membrane. Activity of photosystem 1 membranes if calculated on chlorophyll basis is much higher than the activity of photosystem 2 membranes Pisum sativum 9579
-

Organism

Organism UniProt Comment Textmining
Pisum sativum
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
CO2 + H2O
-
Pisum sativum H2CO3
-
?

IC50 Value

IC50 Value IC50 Value Maximum Comment Organism Inhibitor Structure
0.000001
-
carbonic anhydrase activity of photosystem 2 membranes Pisum sativum ethoxyzolamide
0.001
-
carbonic anhydrase activity of photosystem 1 membranes Pisum sativum acetazolamide
0.001
-
carbonic anhydrase activity of photosystem 1 membranes Pisum sativum ethoxyzolamide