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guanine deaminase This model describes guanine deaminase, which hydrolyzes guanine to xanthine and ammonia. Xanthine can then be converted to urate by xanthine dehydrogenase, and urate subsequently degraded. In some bacteria, the guanine deaminase gene is found near the xdhABC genes for xanthine dehydrogenase. Non-homologous forms of guanine deaminase also exist, as well as distantly related forms outside the scope of this model. [Purines, pyrimidines, nucleosides, and nucleotides, Other]
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Lu S et al.(2020). "CDD/SPARCLE: the conserved domain database in 2020.",