3.5.4.4 ATP + H2O 3.3% of the activity of adenine Saccharomyces cerevisiae ITP + NH3 - ? 141049 3.5.4.4 ATP + H2O 68% of the activity of adenine Arabidopsis thaliana ITP + NH3 - ? 141049 3.5.4.4 viramidine + H2O the enzyme catalyzes viramidine deamination to ribavirin in vivo as a prodrug conversion to active drug, pharmacokinetic analysis, overview Rattus norvegicus ribavirin + NH3 - ? 395017 3.5.4.4 viramidine + H2O substrate and product determination by LC-MS Rattus norvegicus ribavirin + NH3 - ? 395017 3.5.4.4 guanine + H2O ADAII shows 47% of the activity with adenosine Fasciola gigantica xanthine + NH3 - ? 141029 3.5.4.4 guanosine + H2O ADAII shows 75% of the activity with adenosine Fasciola gigantica xanthosine + NH3 - ? 141003