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Biosynthesis: The enzyme 3-dehydroquinate dehydratase uses 3-dehydroquinate to produce 3-dehydroshikimate and H 2 O. 3-Dehydroshikimate is then reduced to shikimic acid by the enzyme shikimate dehydrogenase, which uses nicotinamide adenine dinucleotide phosphate (NADPH) as a cofactor. Biosynthesis of shikimic acid from 3-dehydroquinate
In enzymology, a shikimate dehydrogenase (EC 1.1.1.25) is an enzyme that catalyzes the chemical reaction. shikimate + NADP + 3-dehydroshikimate + NADPH + H +. Thus, the two substrates of this enzyme are shikimate and NADP +, whereas its 3 products are 3-dehydroshikimate, NADPH, and H +.
3-dehydroshikimate dehydratase (EC 4.2.1.118) is an enzyme with systematic name 3-dehydroshikimate hydro-lyase. [1] [2] This enzyme catalyses the following chemical reaction. 3-dehydro-shikimate 3,4-dihydroxybenzoate + H 2 O. This enzyme catalyses an early step in the biosynthesis of petrobactin.
The enzyme 3-dehydroquinate dehydratase (EC 4.2.1.10) catalyzes the chemical reaction. 3-dehydroquinate 3-dehydroshikimate + H 2 O. This enzyme belongs to the family of lyases, specifically the hydro-lyases, which cleave carbon-oxygen bonds. This enzyme participates in phenylalanine, tyrosine and tryptophan biosynthesis
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The fifth enzyme involved is the shikimate kinase, an enzyme that catalyzes the ATP-dependent phosphorylation of shikimate to form shikimate 3-phosphate (shown in the figure below). [1] Shikimate 3-phosphate is then coupled with phosphoenol pyruvate to give 5-enolpyruvylshikimate-3-phosphate via the enzyme 5-enolpyruvylshikimate-3-phosphate ...
(2) shikimate + NAD(P) + 3-dehydroshikimate + NAD(P)H + H + This is the second shikimate dehydrogenase enzyme found in Escherichia coli and differs from EC 1.1.1.25, shikimate dehydrogenase, in that it can use both quinate and shikimate as substrate, and either NAD + or NADP + as acceptor.
Pages in category "EC 4.2.1" The following 124 pages are in this category, out of 124 total. ... 3-dehydroshikimate dehydratase; 3-Hydroxyacyl-CoA dehydratase;