1.13.11.6 | 3-hydroxyanthranilate + O2 = 2-amino-3-carboxymuconate semialdehyde |
the 3HAO reaction is initiated by substrate binding, which induces closure of the active site. Oxygen then binds to the active-site iron. Transfer of an electron from the active-site iron to oxygen creates an oxygen radical, thereby facilitating the addition of both O atoms to 3-HANA and forming 2-amino-3-carboxymuconic 6-semialdehyde (ACMS), an active intermediate. ACMS then spontaneously cyclizes to form quinolinic acid |
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