Nucleic acid-induced self-assembly of a platinum(ii) terpyridyl complex: detection of G-quadruplex formation and nuclease activity

2009 ◽  
pp. 3756 ◽  
Author(s):  
Cong Yu ◽  
Kenneth Hoi-Yiu Chan ◽  
Keith Man-Chung Wong ◽  
Vivian Wing-Wah Yam
Keyword(s):  
Nucleic Acid ◽  
Self Assembly ◽  
Nuclease Activity ◽  
G Quadruplex ◽  
Complex Detection ◽  
Quadruplex Formation

scholarly journals DNA polymerase δ stalls on telomeric lagging strand templates independently from G-quadruplex formation

2013 ◽  
Vol 41 (22) ◽  
pp. 10323-10333 ◽  
Author(s):  
Justin D. Lormand ◽  
Noah Buncher ◽  
Connor T. Murphy ◽  
Parminder Kaur ◽  
Marietta Y. Lee ◽  
...  
Keyword(s):  
Dna Polymerase ◽  
Dna Polymerase Δ ◽  
G Quadruplex ◽  
Quadruplex Formation ◽  
Lagging Strand

scholarly journals Overlapping but distinct: a new model for G-quadruplex biochemical specificity

2021 ◽  
Author(s):  
Martin Volek ◽  
Sofia Kolesnikova ◽  
Katerina Svehlova ◽  
Pavel Srb ◽  
Ráchel Sgallová ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Drug Design ◽  
Solution Structure ◽  
Biochemical Data ◽  
Biological Regulation ◽  
New Model ◽  
G Quadruplex ◽  
Range Of Functions ◽  
Nucleic Acid Structures ◽  
Sequence Requirements

Abstract G-quadruplexes are noncanonical nucleic acid structures formed by stacked guanine tetrads. They are capable of a range of functions and thought to play widespread biological roles. This diversity raises an important question: what determines the biochemical specificity of G-quadruplex structures? The answer is particularly important from the perspective of biological regulation because genomes can contain hundreds of thousands of G-quadruplexes with a range of functions. Here we analyze the specificity of each sequence in a 496-member library of variants of a reference G-quadruplex with respect to five functions. Our analysis shows that the sequence requirements of G-quadruplexes with these functions are different from one another, with some mutations altering biochemical specificity by orders of magnitude. Mutations in tetrads have larger effects than mutations in loops, and changes in specificity are correlated with changes in multimeric state. To complement our biochemical data we determined the solution structure of a monomeric G-quadruplex from the library. The stacked and accessible tetrads rationalize why monomers tend to promote a model peroxidase reaction and generate fluorescence. Our experiments support a model in which the sequence requirements of G-quadruplexes with different functions are overlapping but distinct. This has implications for biological regulation, bioinformatics, and drug design.

scholarly journals TGF‐β‐induced fibrotic stress increases G‐quadruplex formation in human fibroblasts

FEBS Letters ◽  
2019 ◽  
Vol 593 (22) ◽  
pp. 3149-3161 ◽  
Author(s):  
Priyanka Toshniwal ◽  
Michelle Nguyen ◽  
Aurore Guédin ◽  
Helena Viola ◽  
Diwei Ho ◽  
...  
Keyword(s):  
Human Fibroblasts ◽  
G Quadruplex ◽  
Quadruplex Formation

scholarly journals Tsetse Salivary Gland Proteins 1 and 2 Are High Affinity Nucleic Acid Binding Proteins with Residual Nuclease Activity

PLoS ONE ◽  
2012 ◽  
Vol 7 (10) ◽  
pp. e47233 ◽  
Author(s):  
Guy Caljon ◽  
Karin De Ridder ◽  
Benoît Stijlemans ◽  
Marc Coosemans ◽  
Stefan Magez ◽  
...  
Keyword(s):  
Salivary Gland ◽  
Nucleic Acid ◽  
Binding Proteins ◽  
Nuclease Activity ◽  
Nucleic Acid Binding ◽  
High Affinity ◽  
Nucleic Acid Binding Proteins

TT Dimerization and Its Effect on Human Telomere G-Quadruplex Formation

2015 ◽  
Vol 36 (6) ◽  
pp. 1729-1732
Author(s):  
In Sun Kim ◽  
Young Jun Seo
Keyword(s):  
G Quadruplex ◽  
Quadruplex Formation ◽  
Human Telomere

Self-assembly of nanostructures with multiferroic components using nucleic acid linkers

2016 ◽  
Vol 7 (1) ◽  
pp. 20-26 ◽  
Author(s):  
Ferman A. Chavez ◽  
Gopalan Srinivasan
Keyword(s):  
Nucleic Acid ◽  
Self Assembly ◽  
Image Position

Abstract

Lab in a tube: a fast-assembled colorimetric sensor for highly sensitive detection of oligonucleotides based on a hybridization chain reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (55) ◽  
pp. 44714-44721 ◽  
Author(s):  
Siqi Zhang ◽  
Kun Wang ◽  
Zhenyu Li ◽  
Zhongmin Feng ◽  
Ting Sun
Keyword(s):  
Complex Formation ◽  
Dna Sequence ◽  
Self Assembly ◽  
The Self ◽  
Hybridization Chain Reaction ◽  
Chain Reaction ◽  
Highly Sensitive ◽  
G Quadruplex ◽  
Colored Product ◽  
Highly Sensitive Detection

Upon adding THBV, the self-assembly of THBV with H1 allows the rest of the DNA sequence of H1 to accelerate H1–H2 complex formation. The G-quadruplex at the end of the H1–H2 complex could catalyze TMB into a colored product.

Inhibition of Protein Synthesis Through RNA-Based Tandem G-Quadruplex Formation

2021 ◽  
Author(s):  
Masaki Hagihara
Keyword(s):  
Protein Synthesis ◽  
Reverse Transcriptase ◽  
Repeat Sequences ◽  
Guanine Quadruplex ◽  
G Quadruplex ◽  
Inhibition Of Protein Synthesis ◽  
Quadruplex Formation

Tandem guanine repeat sequences can adopt guanine quadruplex (G-quadruplex) structures and consecutive guanine repeat sequences can potentially afford multiple G-quadruplex structures. By using a reverse transcriptase stop assay and biophysical...

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