Fluorine NMR spectroscopy enables to quantify the affinity between DNA and proteins in cell lysate
 

Fluorine NMR spectroscopy enables to quantify the affinity between DNA and proteins in cell lysate

The determination of the binding affinity quantifying the interaction between proteins and nucleic acids is of crucial interest in biological and chemical research. Here, we have made use of sitespecific fluorine labeling of the cold shock protein from Bacillus subtiliis , Bs CspB, enabling to directly monitor the interaction with single stranded DNA molecules in cell lysate. High-resolution 19 F NMR spectroscopy has been applied to exclusively report on resonance signals arising from the...

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