Kinetic mechanism of DNA polymerases: contributions of conformational dynamics and a third divalent metal ion

AT Raper, AJ Reed, Z Suo - Chemical reviews, 2018 - ACS Publications
Faithful transmission and maintenance of genetic material is primarily fulfilled by DNA
polymerases. During DNA replication, these enzymes catalyze incorporation of …

Functional insights revealed by the kinetic mechanism of CRISPR/Cas9

AT Raper, AA Stephenson, Z Suo - Journal of the American …, 2018 - ACS Publications
The discovery of prokaryotic adaptive immunity prompted widespread use of the RNA-
guided clustered regularly interspaced short palindromic repeat (CRISPR)-associated (Cas) …

Processing oxidatively damaged bases at DNA strand breaks by APE1

AM Whitaker, WJ Stark… - Nucleic Acids Research, 2022 - academic.oup.com
Reactive oxygen species attack the structure of DNA, thus altering its base-pairing
properties. Consequently, oxidative stress-associated DNA lesions are a major source of the …

Beyond the Lesion: Back to High Fidelity DNA Synthesis

JD Kaszubowski, MA Trakselis - Frontiers in Molecular Biosciences, 2022 - frontiersin.org
High fidelity (HiFi) DNA polymerases (Pols) perform the bulk of DNA synthesis required to
duplicate genomes in all forms of life. Their structural features, enzymatic mechanisms, and …

Differential mechanisms of tolerance to extreme environmental conditions in tardigrades

D Carrero, JG Pérez-Silva, V Quesada, C López-Otín - Scientific reports, 2019 - nature.com
Tardigrades, also known as water bears, are small aquatic animals that inhabit marine, fresh
water or limno-terrestrial environments. While all tardigrades require surrounding water to …

[HTML][HTML] Conformational transitions of Streptococcus pyogenes Cas9 induced by salt and single-guide RNA binding

Y He, N Zalenski, AA Stephenson, AT Raper… - Journal of Biological …, 2024 - Elsevier
ABSTRACT Streptococcus pyogenes (Sp) Cas9 has been widely utilized to edit genomes
across diverse species. To achieve high efficiency and specificity as a gene editing enzyme …

Investigating the trade-off between folding and function in a multidomain Y-family DNA polymerase

X Chu, Z Suo, J Wang - Elife, 2020 - elifesciences.org
The way in which multidomain proteins fold has been a puzzling question for decades. Until
now, the mechanisms and functions of domain interactions involved in multidomain protein …

Investigation of sliding DNA clamp dynamics by single-molecule fluorescence, mass spectrometry and structure-based modeling

VV Gadkari, SR Harvey, AT Raper, WT Chu… - Nucleic acids …, 2018 - academic.oup.com
Proliferating cell nuclear antigen (PCNA) is a trimeric ring-shaped clamp protein that
encircles DNA and interacts with many proteins involved in DNA replication and repair …

Investigation of intradomain motions of a Y-family DNA polymerase during substrate binding and catalysis

AT Raper, Z Suo - Biochemistry, 2016 - ACS Publications
DNA polymerases catalyze DNA synthesis through a stepwise kinetic mechanism that
begins with binding to DNA, followed by selection, binding, and incorporation of a nucleotide …

Influence of DNA lesions on polymerase-mediated DNA replication at single-molecule resolution

HL Gahlon, LJ Romano, D Rueda - Chemical Research in …, 2017 - ACS Publications
Faithful replication of DNA is a critical aspect in maintaining genome integrity. DNA
polymerases are responsible for replicating DNA, and high-fidelity polymerases do this …