Changes in nucleoside conformation.
D001966:Bromine; D003461:Crystallography; D007455:Iodine; D008956:Models, Chemical; D009705:Nucleosides; D014500:Uracil Nucleotides
D009705:Nucleosides; D014500:Uracil Nucleotides; D007455:Iodine; D001966:Bromine