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RNA G-Quadruplexes: G-quadruplexes with “U” Turns

Current Pharmaceutical Design, 2012
G-quadruplexes are non canonical secondary structures held together by Hoogsteen bonded planar guanine quartets formed in G-rich sequences in DNA and RNA. Considerable research over the past three decades has contributed to a great deal of understanding of these unusual structures in DNA.
Tani, Agarwal   +4 more
openaire   +2 more sources

Bulges in G-Quadruplexes: Broadening the Definition of G-Quadruplex-Forming Sequences

Journal of the American Chemical Society, 2013
We report on the first solution structure of an intramolecular G-quadruplex containing a single bulge and present evidence for extensive occurrence of bulges in different G-quadruplex contexts. The NMR solution structure of the d(TTGTGGTGGGTGGGTGGGT) sequence reveals a propeller-type parallel-stranded G-quadruplex containing three G-tetrad layers ...
Anh Tuan Phan
exaly   +3 more sources

G-quadruplex dynamics

Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics, 2017
G-quadruplexes (GQs) are four-stranded nucleic acid secondary structures formed by guanosine (G)-rich DNA and RNA sequences. It is becoming increasingly clear that cellular processes including gene expression and mRNA translation are regulated by GQs. GQ structures have been extensively characterized, however little attention to date has been paid to ...
Robert W, Harkness   +1 more
openaire   +2 more sources

Luminescent G-quadruplex Probes

Current Pharmaceutical Design, 2012
G-quadruplexes have found increasing potential in applications such as molecular therapeutics, diagnostics, and sensing. As a consequence, small molecules capable of selectively detecting G-quadruplexes have received significant attention in recent literature.
Yang, H   +4 more
openaire   +4 more sources

Macrocyclic G-Quadruplex Ligands

Current Medicinal Chemistry, 2010
G-quadruplex stabilizing compounds have recently received increased interest due to their potential application as anticancer therapeutics. A significant number of structurally diverse G-quadruplex ligands have been developed. Some of the most potent and selective ligands currently known are macrocyclic structures which have been modeled after the ...
Nielsen, M C, Ulven, Trond
openaire   +3 more sources

Hunting G-quadruplexes

Biochimie, 2008
Whilst DNA spends much of its time in the double-stranded form, frequently in storage, wrapped around histones and packaged as chromatin, it can also form other complex structures, which may play a role in natural regulation and gene control. These alternative structures therefore also present an interesting novel series of targets for artificial ...
openaire   +2 more sources

UV Melting of G‐Quadruplexes

Current Protocols in Nucleic Acid Chemistry, 2009
AbstractAbsorbance versus temperature curves can provide information on the thermal stability of DNA or RNA quadruplexes. Quadruplex denaturation or renaturation can be followed by recording absorbance at 295 nm rather than 260 nm, the wavelength used to monitor duplex denaturation. This unit describes the use of absorbance versus temperature curves to
Jean-Louis, Mergny, Laurent, Lacroix
openaire   +2 more sources

Human Papillomavirus G-Quadruplexes

Biochemistry, 2013
Infection with human papillomaviruses (HPVs) is one of the most common sexually transmitted infections and can lead to development of head and neck, skin, and anogenital cancer, including cervical cancer, which represents one of the world's most significant health problems.
Katarína Tluková   +6 more
openaire   +2 more sources

G‐quadruplexes in RNA biology

WIREs RNA, 2012
AbstractG‐quadruplexes are noncanonical structures formed by G‐rich DNA and RNA sequences that fold into a four‐stranded conformation. Experimental studies and computational predictions show that RNA G‐quadruplexes are present in transcripts associated with telomeres, in noncoding sequences of primary transcripts and within mature transcripts.
Stefania, Millevoi   +2 more
openaire   +2 more sources

The tale of RNA G-quadruplex

Organic & Biomolecular Chemistry, 2015
The RNA secondary structure G-quadruplex with its malleable nature can execute diverse biological functions and can be manipulated and used for various applications.
Prachi, Agarwala   +2 more
openaire   +2 more sources

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