Download MendeleyStructure of a left-handed DNA G-quadruplex.
Chung, W.J., Heddi, B., Schmitt, E., Lim, K.W., Mechulam, Y., Phan, A.T.(2015) Proc Natl Acad Sci U S A 112: 2729-2733
- PubMed: 25695967
- DOI: https://doi.org/10.1073/pnas.1418718112
- Primary Citation of Related Structures:
4U5M - PubMed Abstract:
Aside from the well-known double helix, DNA can also adopt an alternative four-stranded structure known as G-quadruplex. Implications of such a structure in cellular processes, as well as its therapeutic and diagnostic applications, have been reported. The G-quadruplex structure is highly polymorphic, but so far, only right-handed helical forms have been observed. Here we present the NMR solution and X-ray crystal structures of a left-handed DNA G-quadruplex. The structure displays unprecedented features that can be exploited as unique recognition elements.
Organizational Affiliation:
School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore; and.
