This protein found in pyrenoids adopts the shape of a square prism, and sees the formation of an enediol intermediate.
The type III version of this protein, which is only found in archaea, uses the substrate generated by the isomerization of a compound obtained dephophorylation of AMP by the deoA protein. It is inhibited by the substrate analog CA1P and may be degraded by the fungal toxin victorin. This protein found in pyrenoids adopts the shape of a square prism, and sees the formation of an enediol intermediate. Its active site contains a magnesium ion bound to a lysine that has been carbamylated by a namesake activase. Its reaction products can act as substrates for phosphoglycerate kinase or glycolate phosphatase. Kranz anatomy is exhibited by organisms that use PEP carboxylase instead of this protein in their mesophyll cells. For 10 points, name this enzyme that can use either oxygen or carbon dioxide as a substrate in the Calvin cycle and is notably inefficient and abundant in plants.
The type III version of this protein, which is only found in archaea, uses the substrate generated by the isomerization of a compound obtained dephophorylation of AMP by the deoA protein.
{Rubisco} [or {ribulose-1,5-bisphosphate carboxylase}-oxygenase; or {RuBP carboxylase}-oxygenase]