ULTIMATE Reagent for End-Labeling Any Nucleic Acid

  • ChemPubSoc Europe Logo
  • Author: Ruben Ragg
  • Published Date: 30 May 2018
  • Source / Publisher: ChemBioChem/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: ULTIMATE Reagent for End-Labeling Any Nucleic Acid

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Methods to chemically incorporate photocleavable labels into nucleic acids in a defined and reversible manner could be very useful. Piyush K. Jain and Simon H. Friedman, University of Missouri, Kansas City, USA, have created a method that uses a novel reagent to allow the reversible modification of any nucleic acid, whether synthetic or naturally sourced, with a "clickable" and photocleavable group.


The team calls the reagent  "Universal Light‐cleaved TerminI‐Modifying And TaggablE" (ULTIMATE). It works with all forms of RNA or DNA, as long as there is a terminal phosphate present. The reagent, a diazo‐di-methoxy nitro phenyl ethyl‐azide (pictured red), incorporates an azide group that can be modified by any "clickable" group (for example, a fluorophore, pictured blue). If needed, the modification can be removed using photolysis, revealing the original, unmodified nucleic acid.


According to the researchers, the ULTIMATE reagent should enable a wide range of studies of nucleic acids that would benefit from visualization and isolation.


 

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