Adenine deaminase (<db_xref db="EC" dbkey="3.5.4.2"/>) hydrolyses adenine to form hypoxanthineand ammonia. The enzyme is part of a large metal dependent hydrolasesuperfamily [<cite idref="PUB00004994"/>].The adenine deaminase reaction is important for adenine utilization asa purine and also as a nitrogen source [<cite idref="PUB00005750"/>]. Adenine deaminase