Cytosolic uridine-cytidine kinase 1 (UCK1) catalyzes the reactions of cytidine or uridine with ATP to form CMP or UMP and ADP (Greenberg et al. 1977; Van Rompay et al. 2001). Unpublished crystallographic data show the enzyme to be a tetramer (PDB - 2JEO).
Webb, TE, Greenberg, N, Schumm, DE
Linden, K, Van Rompay, AR, Norda, A, Karlsson, A, Johansson, M
nucleoside kinase activity of UCK1 tetramer [cytosol]
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