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. 1985 Dec 30;4(13B):3655–3660. doi: 10.1002/j.1460-2075.1985.tb04131.x

Anti-Z-DNA antibody binding can stabilize Z-DNA in relaxed and linear plasmids under physiological conditions.

E M Lafer, R Sousa, A Rich
PMCID: PMC554714  PMID: 4092691

Abstract

It is shown that anti-Z-DNA antibody binding can stabilize sequences of d(CG/GC)n and d(CA/GT)n in the Z-DNA conformation in a plasmid in the complete absence of supercoiling. This effect is quantitated by using antibody preparations of different affinities and varying concentrations. The d(CG/GC)n sequence can be stabilized under physiological conditions. This is the first demonstration that a region of Z-DNA can be stabilized by protein binding in a completely relaxed plasmid under physiological conditions. The antibody-Z-DNA complex in the relaxed plasmid is shown to be an equilibrium state and not a long-lived kinetic intermediate since specific binding of the antibody to linearized plasmids containing Z-forming sequences is observed.

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Selected References

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