FUNCTION: CATALYZES THE HYDROLYTIC DEAMINATION OF GUANINE, PRODUCING XANTHINE AND AMMONIA (BY SIMILARITY). * CATALYTIC ACTIVITY: Guanine + H2O = xanthine + NH3. * COFACTOR: CONTAINS 1 MOLE OF ZINC PER SUBUNIT. * PATHWAY: PURINE NUCLEOTIDE CATABOLISM. * SUBUNIT: Homodimer. * SIMILARITY: BELONGS TO THE ATZ/TRZ FAMILY. |
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16-JAN-03
Last Update 13-Mar-03