Ultraviolet light can form crosslinks between adjacent bases in DNA, leading to mutations when the DNA is replicated. This NMR[BW11] structure includes a short piece of DNA with two crosslinked thymine bases.PDB ID: 1TTD
Solution-state structure of a DNA dodecamer duplex containing a Cis-syn thymine cyclobutane dimer, the major UV photoproduct of DNA.
McAteer, K., Jing, Y., Kao, J., Taylor, J.S., Kennedy, M.A.
Journal: (1998) J.Mol.Biol. 282: 1013-1032