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. Author manuscript; available in PMC: 2015 Jan 29.
Published in final edited form as: DNA Repair (Amst). 2014 Apr 18;20:71–81. doi: 10.1016/j.dnarep.2014.03.007

Figure 5.

Figure 5

Schematic of DNA unwinding assay used to detect mismatch recognition and subsequent sliding clamp formation. A bead is attached to one DNA strand and the other strand is attached to the surface. An optical trap is used to trap the bead and pull on the DNA to promote unwinding, and the force required to unwind the DNA is monitored. Adapted from [59].