1YBR:
reference: i-motif solution structure and dynamics of the d(AACCCC) and d(CCCCAA) tetrahymena telomeric repeats., Esmaili N, Leroy JL, Nucleic Acids Res 2005 Jan 12;33(1):213-24. Print 2005. PMID: 15647504

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