5ZEV:
reference: A putative G-quadruplex structure in the proximal promoter of vegfr-2 has implications for drug design to inhibit tumor angiogenesis., Liu Y, Lan W, Wang C, Cao C, J Biol Chem. 2018 Apr 17. pii: RA118.002666. doi: 10.1074/jbc.RA118.002666. PMID: 29666187

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).