3-dehydroquinate synthase

The shikimate pathway is responsible for producing the precursors for aromatic amino acids, which are essential to our diets because we cannot synthesize them in our bodies.

The pathway ultimately converts phosphoenolpyruvate and 4-erythrose phosphate into chorismate, the precursor to aromatic amino acids.

[4] 3-Dehydroquinate synthase utilizes a complex multi-step mechanism that includes alcohol oxidation, phosphate β-elimination, carbonyl reduction, ring opening, and intramolecular aldol condensation.

However, in fungi and protists, it is part of the pentafunctional AROM complex that comprises steps two, three, four, five and six of the shikimate pathway.

[6] 3-Dehydroquinate synthase catalyzes the second step in the shikimate pathway, which is essential for the production of aromatic amino acids in bacteria, plants, and fungi, but not mammals.

The reaction catalyzed by 3-dehydroquinate synthase
This cartoon representation of 3-dehydroquinate synthase shows the arrangement of the secondary structure of the protein
3-dehydroquinate synthase interacting with its substrates NAD + , carbaphosphonate, and Zn 2+ , which are shown as spheres in this representation
This representation of 3-dehydroquinate synthase shows the surface of the enzyme, as well as the active site, which can be seen in the middle.