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A G-quadruplex DNA-affinity Approach for Purification of Enzymatically Active G4 Resolvase1
JoVE Journal
Bioquímica
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JoVE Journal Bioquímica
A G-quadruplex DNA-affinity Approach for Purification of Enzymatically Active G4 Resolvase1

A G-quadruplex DNA-affinity Approach for Purification of Enzymatically Active G4 Resolvase1

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11:25 min

March 18, 2017

DOI:

11:25 min
March 18, 2017

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Summary

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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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