In enzymology, 2-aminomuconate deaminase is an enzyme that catalyzes the chemical reaction 2-aminomuconate + H2O ⇌ {\displaystyle \rightleftharpoons } 4-oxalocrotonate + NH3Thus, the two substrates of this enzyme are 2-aminomuconate and H2O, whereas its two products are 4-oxalocrotonate and NH3. Wikipedia