A novel minimal motif for left-handed G-quadruplex formation.
Das, P., Winnerdy, F.R., Maity, A., Mechulam, Y., Phan, A.T.(2021) Chem Commun (Camb) 57: 2527-2530
- PubMed: 33690751
- DOI: https://doi.org/10.1039/d0cc08146a
- Primary Citation of Related Structures:
7DFY - PubMed Abstract:
A recent study on the left-handed G-quadruplex (LHG4) DNA revealed a 12-nt minimal motif GTGGTGGTGGTG with the ability to independently form an LHG4 and to drive an adjacent sequence to LHG4 formation. Here we have identified a second LHG4-forming motif, GGTGGTGGTGTG, and determined the X-ray crystal structure of an LHG4 involving this motif. Our structural analysis indicated the role of split guanines and single thymine loops in promoting LHG4 formation.
Organizational Affiliation:
School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore. phantuan@ntu.edu.sg.