5-Aza-7-deaza Guanosine (CAS 67410-65-5)

5-Aza-7-deazaguanosine is a nucleoside analog that features structural modifications at both the 5 and 7 positions of the purine base, where a nitrogen atom is replaced by carbon at the 7 position and an azide group replaces a nitrogen at the 5 position. These alterations significantly affect the compound′s interaction with enzymatic systems and nucleic acids, making it a valuable tool in biochemical research. The primary mechanism of action of 5-Aza-7-deazaguanosine involves its incorporation into RNA, due to its structural similarity to guanosine. Once incorporated, it disrupts normal RNA function and processing. The modification at the 7 position alters the electronic distribution and hydrogen bonding pattern in the base, which can affect base pairing and the overall stability of the RNA structure. Additionally, the azide group at the 5 position can interfere with enzymatic processes that modify or interact with the base, further altering RNA metabolism. In scientific research, 5-Aza-7-deazaguanosine has been used to study the role of RNA modifications in various cellular processes. It serves as a tool to understand how changes in the nucleoside structure affect the function and stability of RNA molecules. For instance, researchers have used this analog to investigate the impact of altered nucleoside bases on the biogenesis and function of small non-coding RNAs, such as microRNAs and siRNAs, which play crucial roles in gene regulation. Moreover, 5-Aza-7-deazaguanosine has been employed to explore the mechanisms of RNA-dependent processes such as transcription and translation. By incorporating into mRNA transcripts, it can reveal insights into how modifications affect the translation efficiency and fidelity. This has implications for understanding the dynamics of protein synthesis and the role of modified nucleosides in managing cellular stress responses and protein homeostasis.