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A G-quadruplex DNA-affinity Approach for Purification of Enzymatically Active G4 Resolvase1
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March 18, 2017
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G4 Resolvase1 binds to G-quadruplex (G4) structures with the tightest reported affinity for a G4-binding protein and represents the majority of the G4-DNA unwinding activity in HeLa cells. We describe a novel protocol that harnesses the affinity and ATP-dependent unwinding activity of G4-Resolvase1 to specifically purify catalytically active recombinant G4R1.
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Routh, E. D., Creacy, S. D., Beerbower, P. E., Akman, S. A., Vaughn, J. P., Smaldino, P. J. A G-quadruplex DNA-affinity Approach for Purification of Enzymatically Active G4 Resolvase1. J. Vis. Exp. (121), e55496, doi:10.3791/55496 (2017).
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