[HTML][HTML] Z-form extracellular DNA is a structural component of the bacterial biofilm matrix

JR Buzzo, A Devaraj, ES Gloag, JA Jurcisek… - Cell, 2021 - cell.com
Biofilms are community architectures adopted by bacteria inclusive of a self-formed
extracellular matrix that protects resident bacteria from diverse environmental stresses and …

Contingency and chance erase necessity in the experimental evolution of ancestral proteins

VC **e, J Pu, BPH Metzger, JW Thornton… - Elife, 2021 - elifesciences.org
The roles of chance, contingency, and necessity in evolution are unresolved because they
have never been assessed in a single system or on timescales relevant to historical …

Probing Watson-Crick and Hoogsteen base pairing in duplex DNA using dynamic nuclear polarization solid-state NMR spectroscopy

DW Conroy, Y Xu, H Shi… - Proceedings of the …, 2022 - National Acad Sciences
The majority of base pairs in double-stranded DNA exist in the canonical Watson-Crick
geometry. However, they can also adopt alternate Hoogsteen conformations in various …

Using quantum chemistry to estimate chemical shifts in biomolecules

DA Case - Biophysical chemistry, 2020 - Elsevier
An automated fragmentation quantum mechanics/molecular mechanics approach (AFNMR)
has shown promising results in chemical shift calculations for biomolecules. Sample results …

Hoogsteen base pairs increase the susceptibility of double-stranded DNA to cytotoxic damage

Y Xu, A Manghrani, B Liu, H Shi, U Pham, A Liu… - Journal of Biological …, 2020 - ASBMB
As the Watson–Crick faces of nucleobases are protected in dsDNA, it is commonly assumed
that deleterious alkylation damage to the Watson–Crick faces of nucleobases predominantly …

[HTML][HTML] Rapid assessment of Watson–Crick to Hoogsteen exchange in unlabeled DNA duplexes using high-power SELOPE imino H CEST

B Liu, A Rangadurai, H Shi… - Magnetic …, 2021 - mr.copernicus.org
Abstract In duplex DNA, Watson–Crick A–T and G–C base pairs (bp's) exist in dynamic
equilibrium with an alternative Hoogsteen conformation, which is low in abundance and …

Revealing AT and GC Hoogsteen base pairs in stressed protein-bound duplex DNA

H Shi, IJ Kimsey, S Gu, HF Liu, U Pham… - Nucleic acids …, 2021 - academic.oup.com
Watson–Crick base pairs (bps) are the fundamental unit of genetic information and the
building blocks of the DNA double helix. However, AT and GC can also form alternative …

Infrared Spectroscopic Observation of a G–C+ Hoogsteen Base Pair in the DNA:TATA‐Box Binding Protein Complex Under Solution Conditions

AL Stelling, AY Liu, W Zeng, R Salinas… - Angewandte Chemie …, 2019 - Wiley Online Library
Hoogsteen DNA base pairs (bps) are an alternative base pairing to canonical Watson–Crick
bps and are thought to play important biochemical roles. Hoogsteen bps have been reported …

Molecular Insight into the Structural Dynamics of Holliday Junctions Modulated by Integration Host Factor

F Islam, PP Mishra - The Journal of Physical Chemistry B, 2024 - ACS Publications
The integration host factor (IHF) in Escherichia coli is a nucleoid-associated protein with
multifaceted roles that encompass DNA packaging, viral DNA integration, and …

Binding of Homeodomain Proteins to DNA with Hoogsteen Base Pair

K Kole, J Chakrabarti - The Journal of Physical Chemistry B, 2025 - ACS Publications
In DNA double helices, Hoogsteen (HG) base pairing is an alternative mode of Watson–
Crick (WC) base pairing. HG bp has a different hydrogen bonding pattern than WC bp. We …