Skip to main content
. Author manuscript; available in PMC: 2011 Feb 4.
Published in final edited form as: DNA Repair (Amst). 2009 Dec 11;9(2):153. doi: 10.1016/j.dnarep.2009.11.006

Figure 2. Pathway for the phosphorylation of cytidine and deoxycytidine.

Figure 2

The biochemical pathway by which cytidine or deoxycytidine may be converted to nucleoside triphosphates and incorporated into RNA or DNA are shown. The figure points out that a deoxycytidine kinase is missing in E. coli and that Drosophila deoxynucleoside kinase (Dm-dNK) can perform this step. Udk- Uridine/ Cytidine kinase, Cmk- CMP kinase, N rd- Ribonucleotide Reductase, Ndk- Nucleotide Diphosphate Kinase.