3'-Deoxycytidine is an inhibitor of nucleolar RNA synthesis but does not affect the appearance of mRNA. Displayed inhibitory properties against the replication of hepatitis C virus-like RNA template.
3'-Deoxycytidine is a pyrimidine analog of cordycepin. The structures of cordycepin and 3'-deoxycytidine resemble adenosine and cytidine except for the altered 3' position in the ribose moiety, where hydrogen is substituted for the hydroxyl group. 3'-deoxycytidine affects similar to that of cordycepin on nucleolar RNA formation and has approximately the same level of activity as the adenosine analog. 3'-deoxycytidine, like cordycepin, enters cells and is phosphorylated by the appropriate enzymes. 3'-Deoxycytidine shares with cordycepin the ability to inhibit nucleolar RNA synthesis, but it does not affect the appearance of mRNA. Neither compound affects heterogeneous nuclear RNA (HnRNA)[1].
[1] Herbert T. Abelson, Sheldon Penman. “Messenger RNA formation: Resistance to inhibition by 3′-deoxycytidine.” Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis 277 1 (1972): Pages 129-133.