Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/2LBY 2LBY: G-quadruplex structure formed at the 5'-end of NHEIII_1 element in human c-MYC promoter DNA (5'-D(*TP*AP*GP*GP*GP*AP*GP*GP*GP*TP*AP*GP*GP*GP*AP*GP*GP*GP*T)-3')