Long repeating (TTAGGG)n single-stranded DNA self-condenses into compact beaded filaments stabilized by G-quadruplex formation.

http://www.jbc.org/content/293/24/9473.long

Anirban Kar, Nathan Jones, N. Özlem Arat, Richard Fishel, and Jack D. Griffith

Congratulations to the authors and their work showing new condensed structures in G-quadruplex DNA.