>15 units per mg dry weight (~17 mg)
Source: Calf Spleen
Store: 2-8 °C stable for at least 6 months
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Adenosine deaminase (ADA) is a purine catabolic enzyme ubiquitous in mammalian tissue which catalyzes deamination of both adenosine and 2'-deoxyadenosine to inosine and 2'-deoxyinosine respectively