5'-nucleotidase (NT5E, CD73) is able to hydrolyse extracellular nucleotides into membrane permeable nucleosides. It displays a broad specificity, acting on mono- or di-nucleotide nicotinamides and different adenosine phosphates, with maximal activity on 5'-adenosine monophosphate. Human NT5E can hydrolyse both NAD+ and NMN, suggesting a role in NAD metabolism (Garavaglia et al. 2012). NT5E is a glycolipid-anchored plasma membrane enzyme (Misumi et al. 1990) that is active in dimeric form and requires one zinc ion per subunit (Zimmermann 1992).
Misumi, Y, Ogata, S, Ohkubo, K, Hirose, S, Ikehara, Y
Zimmermann, H
Garavaglia, S, Bruzzone, S, Cassani, C, Canella, L, Allegrone, G, Sturla, L, Mannino, E, Millo, E, De Flora, A, Rizzi, M
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