ID   3.5.4.8
DE   aminoimidazolase.
AN   4-aminoimidazole deaminase.
CA   4-aminoimidazole + H2O + H(+) = imidazol-4-one + NH4(+).
CC   -!- Forms part of the xanthine-degradation pathway in some bacteria.
CC   -!- The product of the reaction, imidazol-4-one, can be converted non-
CC       enzymically into formiminoglycine.
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