Results 41 to 50 of about 11,711,774 (302)

Developing Novel G-Quadruplex Ligands: from Interaction with Nucleic Acids to Interfering with Nucleic Acid–Protein Interaction

open access: yesMolecules, 2019
G-quadruplex is a special secondary structure of nucleic acids in guanine-rich sequences of genome. G-quadruplexes have been proved to be involved in the regulation of replication, DNA damage repair, and transcription and translation of oncogenes or ...
Zhi-Yin Sun   +4 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

A G-rich sequence within the 3'UTR of KiSS1 forms G-quadruplex [PDF]

open access: yes, 2022
L’obiettivo dello studio è stato quello di dimostrare che la regione ricca in guanine del 3’UTR del gene KiSS1 forma effettivamente strutture secondarie G-quadruplex e di capire se i polimorfismi trovati nei pazienti affetti da pubertà precoce ...
Bonafè, Giulia
core  

G-quadruplex–R-loop interactions and the mechanism of anticancer G-quadruplex binders [PDF]

open access: yesNucleic Acids Research, 2020
AbstractGenomic DNA and cellular RNAs can form a variety of non-B secondary structures, including G-quadruplex (G4) and R-loops. G4s are constituted by stacked guanine tetrads held together by Hoogsteen hydrogen bonds and can form at key regulatory sites of eukaryote genomes and transcripts, including gene promoters, untranslated exon regions and ...
Giulia Miglietta   +2 more
openaire   +4 more sources

Interaction of pyrrolobenzodiazepine (PBD) ligands with parallel intermolecular G-quadruplex complex using spectroscopy and ESI-MS.

open access: yesPLoS ONE, 2012
Studies on ligand interaction with quadruplex DNA, and their role in stabilizing the complex at concentration prevailing under physiological condition, has attained high interest.
Gajjela Raju   +5 more
doaj   +1 more source

Progress in ion detection and clinical diagnosis based on G-quadruplex combined with fluorescence properties

open access: yesAdvanced Sensor and Energy Materials
G-quadruplex is a high-level structure composed of folded DNA or RNA rich in tandem repeats of guanine (G). In recent years, G-quadruplex is widely used in various fields due to its unique structural properties.
Ping Lu, Gerile Aodeng, Jun Ai
doaj   +1 more source

RNA G-quadruplex structures exist and function in vivo in plants

open access: yesGenome Biology, 2020
Background Guanine-rich sequences are able to form complex RNA structures termed RNA G-quadruplexes in vitro. Because of their high stability, RNA G-quadruplexes are proposed to exist in vivo and are suggested to be associated with important biological ...
Xiaofei Yang   +10 more
doaj   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

open access: yesFEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg   +14 more
wiley   +1 more source

Stability of telomeric G-quadruplexes [PDF]

open access: yesNucleic Acids Research, 2010
In most eukaryotes, telomeric DNA consists of repeats of a short motif that includes consecutive guanines and may hence fold into G-quadruplexes. Budding yeasts have telomeres composed of longer repeats and show variation in the degree of repeat homogeneity. Although telomeric sequences from several organisms have been shown to fold into G-quadruplexes
Tran, Phong Lan Thao   +2 more
openaire   +3 more sources

Novel splicing in IGFN1 intron 15 and role of stable G-quadruplex in the regulation of splicing in renal cell carcinoma. [PDF]

open access: yesPLoS ONE, 2018
The IGFN1 (Immunoglobulin-Like And Fibronectin Type III Domain Containing 1) gene has a role in skeletal muscle function and is also involved in metastatic breast cancer, and the isoforms with three N-terminal globular domains are sufficient for its ...
Shiv Prakash Verma, Parimal Das
doaj   +1 more source

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