Abstract
Intrinsic bending of DNA molecules results from local structural polymorphism in regions of homopolymeric dA · dT which are at least 4 base pairs long; the A · T tracts must be repeated in phase with the helix screw. Bending, in the direction of base-pair tilt rather than roll, occurs at the junctions between the A · T tract and adjacent B-DNA, with a larger angle at the 3′ than at the 5′ end of the A tract.
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Koo, HS., Wu, HM. & Crothers, D. DNA bending at adenine · thymine tracts. Nature 320, 501–506 (1986). https://doi.org/10.1038/320501a0
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DOI: https://doi.org/10.1038/320501a0
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