Results 111 to 120 of about 9,085,971 (219)

Human Papillomavirus G‑Quadruplexes

open access: yes, 2016
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 ...
Primož Šket (1651762)   +6 more
core   +1 more source

Targeting RNA G-Quadruplexes for Potential Therapeutic Applications [PDF]

open access: yes, 2017
RNA G-quadruplexes are non-canonical structures formed in G-rich regions of transcriptome. Considerable research points towards the potential role for these dynamic structures in various genes involved in multiple pathways.
Souvik Maiti   +5 more
core   +1 more source

G-Quadruplexes as An Alternative Recognition Element in Disease-Related Target Sensing

open access: yesMolecules, 2019
G-quadruplexes are made up of guanine-rich RNA and DNA sequences capable of forming noncanonical nucleic acid secondary structures. The base-specific sterical configuration of G-quadruplexes allows the stacked G-tetrads to bind certain planar molecules ...
Jeunice Ida   +5 more
doaj   +1 more source

Tetrahelical structural family adopted by AGCGA-rich regulatory DNA regions

open access: yesNature Communications, 2017
DNA tetrahelical structures such as G-quadruplexes are known to play important roles in DNA replication and repair. Here the authors present the structure of 5′-AGCGA-3′-quadruplexes enriched in genetic regulatory regions.
Vojč Kocman, Janez Plavec
doaj   +1 more source

Transcription Driven by Reversible Photocontrol of Hyperstable G‑Quadruplexes

open access: yes, 2018
G-quadruplexes occur in promoter regions, 5′-untranslated regions of mRNA and telomeric regions, and they function as regulatory elements for various key biological events, such as transcription, translation, and telomere elongation.
Shinzi Ogasawara (2426575)
core   +1 more source

Hindered intermolecular stacking of anti-parallel telomeric G-quadruplexes

open access: yes
Telomeric G-quadruplexes (G4s) are non-canonical DNA structures composed of TTAGGG repeats. They are extensively studied both as biomolecules key for genome stability and as promising building blocks and functional elements in synthetic biology and ...
Bertini L.   +11 more
core   +1 more source

Fundamentals of G-quadruplex biology

open access: yes, 2020
Several decades elapsed between the first descriptions of G-quadruplex nucleic acid structures (G4s) assembled in vitro and the emergence of experimental findings indicating that such structures can form and function in living systems. A large body of evidence now supports roles for G4s in many aspects of nucleic acid biology, spanning processes from ...
openaire   +2 more sources

Targeting G-quadruplex DNA as Potential Anti-cancer Therapy

open access: yes, 2017
This chapter provides an introduction and also a review on non-canonical DNA structures such as guanine-quadruplexes (G-quadruplexes) and their targeting by small molecules for applications in Pharmacology.
Trippodo E., Barone G., Bonsignore R.
core   +1 more source

Fluorescence Turn-Off Ligand for Parallel G-Quadruplexes

open access: yesMolecules
Parallel-stranded G-quadruplex structures are found to be common in the human promoter sequences. We tested highly fluorescent 9-methoxyluminarine ligand (9-MeLM) binding interactions with different parallel G-quadruplexes DNA by spectroscopic methods ...
Joanna Nowak-Karnowska   +3 more
doaj   +1 more source

Engineering of interlocked DNA G-quadruplexes as a robust scaffold

open access: yes, 2012
Interlock is a structural element in DNA G-quadruplexes that can be compared with the commonly used complementary binding of ‘sticky ends’ in DNA duplexes. G-quadruplex interlocking can be a basis for the assembly of higher-order structures. In this
Do, Ngoc Quang, Phan, Anh Tuân
core   +1 more source

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