Cartwright B A, Goodgame D M, Jeeves I, Skapski A C
Biochim Biophys Acta. 1977 Jul 15;477(2):195-8. doi: 10.1016/0005-2787(77)90236-2.
An X-ray study of the crystal structure of a cobalt(II) complex with uridine 5'-monophosphate shows it to contain polymeric chains of composition [Co2(H2O)4 (5'-UMP)2]n. The cobalt atoms do not bind to the pyrimidine base moiety; instead each metal atom is octahedrally coordinated to four phosphate groups and two water molecules. Managanese(II) forms a similar compound.