New insights into Hoogsteen base pairs in DNA duplexes from a structure-based survey

H Zhou, BJ Hintze, IJ Kimsey… - Nucleic acids …, 2015 - academic.oup.com
Hoogsteen (HG) base pairs (bps) provide an alternative pairing geometry to Watson–Crick
(WC) bps and can play unique functional roles in duplex DNA. Here, we use structural …

Inosine and its methyl derivatives: Occurrence, biogenesis, and function in RNA

N Dutta, I Deb, J Sarzynska, A Lahiri - Progress in Biophysics and Molecular …, 2022 - Elsevier
Inosine is one of the most common post-transcriptional modifications. Since its discovery, it
has been noted for its ability to contribute to non-Watson-Crick interactions within RNA …

Atomic structures of excited state A–T Hoogsteen base pairs in duplex DNA by combining NMR relaxation dispersion, mutagenesis, and chemical shift calculations

H Shi, MC Clay, A Rangadurai… - Journal of biomolecular …, 2018 - Springer
NMR relaxation dispersion studies indicate that in canonical duplex DNA, Watson–Crick
base pairs (bps) exist in dynamic equilibrium with short-lived low abundance excited state …

An intricate balance of hydrogen bonding, ion atmosphere and dynamics facilitates a seamless uracil to cytosine substitution in the U-turn of the neomycin-sensing …

M Krepl, J Vögele, H Kruse… - Nucleic acids …, 2018 - academic.oup.com
The neomycin sensing riboswitch is the smallest biologically functional RNA riboswitch,
forming a hairpin capped with a U-turn loop—a well-known RNA motif containing a …

Structural effects of inosine substitution in telomeric DNA quadruplex

YY Zheng, R Dartawan, Y Wu, C Wu, H Zhang… - Frontiers in …, 2024 - frontiersin.org
The telomeric DNA, a distal region of eukaryotic chromosome containing guanine-rich
repetitive sequence of (TTAGGG) n, has been shown to adopt higher-order structures …

Robust IR‐based detection of stable and fractionally populated G‐C+ and A‐T Hoogsteen base pairs in duplex DNA

AL Stelling, Y Xu, H Zhou, SH Choi, MC Clay… - FEBS …, 2017 - Wiley Online Library
Noncanonical G‐C+ and A‐T Hoogsteen base pairs can form in duplex DNA and play roles
in recognition, damage repair, and replication. Identifying Hoogsteen base pairs in DNA …

Dissection of integrated readout reveals the structural thermodynamics of DNA selection by transcription factors

TN Vernon, JR Terrell, AV Albrecht, MW Germann… - Structure, 2024 - cell.com
Nucleobases such as inosine have been extensively utilized to map direct contacts by
proteins in the DNA groove. Their deployment as targeted probes of dynamics and …

Dependence of fluorescence quenching of CY3 oligonucleotide conjugates on the oxidation potential of the stacking base pair

J Sobek, R Schlapbach - Molecules, 2020 - mdpi.com
To understand the complex fluorescence properties of astraphloxin (CY3)-labelled
oligonucleotides, it is necessary to take into account the redox properties of the …

[PDF][PDF] Occurrence and function of Hoogsteen base pairs in nucleic acids

H Zhou - 2016 - dukespace.lib.duke.edu
The double helix provides the structural basis for the storage and transfer of genetic
information. The B-form double helix adopted by DNA can dynamically accommodate …

An AT Hoogsteen base pair in a naked DNA hairpin motif: A Protein-Recognized Conformation

S Guseva, O Szekely, A Geng, K Smith, S Pratihar… - bioRxiv, 2024 - biorxiv.org
In duplex DNA, AT and GC form Watson-Crick base pairs, and Hoogsteen pairing only
dominates upon protein binding or DNA damage. Using NMR, we show that an AT …