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5 Bromouridine

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Covid-19
Abbreviations  BrUrd
Appearance  Crystalline, white solid
Density  2.043 g/cm³
5-Bromouridine wwwsigmaaldrichcomcontentdamsigmaaldrichstr

5-Bromouridine (BrUrd) is a uridine derivative with a bromo substituent at the fifth carbon. BrUrd is incorporated into RNA and can be detected immunocytochemically and analysed by cytometry. It causes DNA damage through base substitution and increases the number of mutations.

Contents

Antiviral activity

5-Bromouridine possesses anti-viral activity and inhibits the activity of viruses such as human immunodeficiency virus. It induces cell death and suppression the reproduction of cells

Detecting half-Life activity

5-Bromouridine has also been used to detect the half-life of RNA molecules. In a method called 5'-bromo-uridine immunoprecipitation chase-deep sequencing analysis (BRIC-seq), 5'-bromouridine is used to label RNA and enable the measurement of RNA levels over time. This method was used in Tani et al.'s study determining RNA half-lives to investigate the function of non-coding RNAs.

Splicing of pre-mRNA

5-Bromouridine was also used to study in vitro slicing of pre-mRNA in a study by Wansink. 5-Bromoruridine 5'-triphosphate (BruUTP) was used to label pre-mRNA and investigate the efficiency of splicing. They found that splicing is inhibited if uridines in RNA transcript were replaced by BrU, which suggested that Us were critical for the splicing reaction.

References

5-Bromouridine Wikipedia


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