Tubercidin (7-Deazaadenosine) is an antibiotic obtained from Streptomyces tubercidicus. Tubercidin inhibits the growth of Streptococcus faecalis (8043) with an IC50 of 0.02 µM[1]. Tubercidin inhibits polymerases by incorporating DNA or RNA, thereby inhibiting DNA replication, RNA and protein synthesis[2]. Tubercidin is a weak inhibitor of adenosine phosphorylase, and interferes with the phosphorylation of adenosine and AMP[1]. Tubercidin has antiviral activity[2].
