Results 31 to 40 of about 9,012 (187)

G-quadruplexes in helminth parasites

open access: yesNucleic Acids Research, 2022
Abstract Parasitic helminths infecting humans are highly prevalent infecting ∼2 billion people worldwide, causing inflammatory responses, malnutrition and anemia that are the primary cause of morbidity. In addition, helminth infections of cattle have a significant economic impact on livestock production, milk yield and fertility.
Cantara, Alessio   +13 more
openaire   +3 more sources

Biophysical Characterization of G-Quadruplex Recognition in the PITX1 mRNA by the Specificity Domain of the Helicase RHAU. [PDF]

open access: yesPLoS ONE, 2015
Nucleic acids rich in guanine are able to fold into unique structures known as G-quadruplexes. G-quadruplexes consist of four tracts of guanylates arranged in parallel or antiparallel strands that are aligned in stacked G-quartet planes. The structure is
Emmanuel O Ariyo   +8 more
doaj   +1 more source

Recent Developments in Small-Molecule Ligands of Medicinal Relevance for Harnessing the Anticancer Potential of G-Quadruplexes

open access: yesMolecules, 2021
G-quadruplexes, a family of tetraplex helical nucleic acid topologies, have emerged in recent years as novel targets, with untapped potential for anticancer research. Their potential stems from the fact that G-quadruplexes occur in functionally-important
Loukiani Savva, Savvas N. Georgiades
doaj   +1 more source

Molecular Recognition of the Hybrid-Type G-Quadruplexes in Human Telomeres

open access: yesMolecules, 2019
G-quadruplex (G4) DNA secondary structures formed in human telomeres have been shown to inhibit cancer-specific telomerase and alternative lengthening of telomere (ALT) pathways.
Guanhui Wu   +3 more
doaj   +1 more source

Integrative characterization of G-Quadruplexes in the three-dimensional chromatin structure

open access: yesEpigenetics, 2019
DNA molecules are highly compacted in the eukaryotic nucleus where distal regulatory elements reach their targets through three-dimensional chromosomal interactions.
Yue Hou   +6 more
doaj   +1 more source

Why are G-quadruplexes good at preventing protein aggregation?

open access: yesRNA Biology, 2023
Maintaining a healthy protein folding environment is essential for cellular function. Recently, we found that nucleic acids, G-quadruplexes in particular, are potent chaperones for preventing protein aggregation.
Theodore J. Litberg   +5 more
doaj   +1 more source

Replication of G Quadruplex DNA [PDF]

open access: yesGenes, 2019
A cursory look at any textbook image of DNA replication might suggest that the complex machine that is the replisome runs smoothly along the chromosomal DNA. However, many DNA sequences can adopt non-B form secondary structures and these have the potential to impede progression of the replisome.
Leticia Koch Lerner, Julian E. Sale
openaire   +2 more sources

Structure and Function of Multimeric G-Quadruplexes

open access: yesMolecules, 2019
G-quadruplexes are noncanonical nucleic acid structures formed from stacked guanine tetrads. They are frequently used as building blocks and functional elements in fields such as synthetic biology and also thought to play widespread biological roles.
Sofia Kolesnikova, Edward A. Curtis
doaj   +1 more source

Multimerization rules for G-quadruplexes [PDF]

open access: yesNucleic Acids Research, 2017
G-quadruplexes can multimerize under certain conditions, but the sequence requirements of such structures are not well understood. In this study, we investigated the ability of all possible variants of the central tetrad in a monomeric, parallel-strand G-quadruplex to form higher-order structures.
Kolesnikova, S. (Sofia)   +4 more
openaire   +3 more sources

Whole Genome Identification of Potential G-Quadruplexes and Analysis of the G-Quadruplex Binding Domain for SARS-CoV-2

open access: yesFrontiers in Genetics, 2020
The coronavirus disease 2019 (COVID-19) pandemic caused by SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) has become a global public health emergency.
Rongxin Zhang   +4 more
doaj   +1 more source

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