Isochorismatase Explained

isochorismatase
Ec Number:3.3.2.1
Cas Number:37288-64-5
Go Code:0008908

In enzymology, an isochorismatase is an enzyme that catalyzes the chemical reaction

isochorismate + H2O

\rightleftharpoons

2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate

Thus, the two substrates of this enzyme are isochorismate and H2O, whereas its two products are 2,3-dihydroxy-2,3-dihydrobenzoate and pyruvate.

This enzyme belongs to the family of hydrolases, specifically those acting on ether bonds (ether hydrolases). The systematic name of this enzyme class is isochorismate pyruvate-hydrolase. Other names in common use include 2,3-dihydro-2,3-dihydroxybenzoate synthase, 2,3-dihydroxy-2,3-dihydrobenzoate synthase, and 2,3-dihydroxy-2,3-dihydrobenzoic synthase. This enzyme participates in the biosynthesis of siderophore group (nonribosomal).

Structural studies

As of late 2007, 3 structures have been solved for this class of enzymes, with PDB accession codes,, and .

References