Single-molecule studies of protein folding with optical tweezers

C Bustamante, L Alexander, K Maciuba… - Annual review of …, 2020 - annualreviews.org
Manipulation of individual molecules with optical tweezers provides a powerful means of
interrogating the structure and folding of proteins. Mechanical force is not only a relevant …

Reconstructing folding energy landscapes by single-molecule force spectroscopy

MT Woodside, SM Block - Annual review of biophysics, 2014 - annualreviews.org
Folding may be described conceptually in terms of trajectories over a landscape of free
energies corresponding to different molecular configurations. In practice, energy landscapes …

Hidden dynamics in the unfolding of individual bacteriorhodopsin proteins

H Yu, MGW Siewny, DT Edwards, AW Sanders… - Science, 2017 - science.org
Protein folding occurs as a set of transitions between structural states within an energy
landscape. An oversimplified view of the folding process emerges when transiently …

Optical tweezers analysis of DNA–protein complexes

I Heller, TP Hoekstra, GA King, EJG Peterman… - Chemical …, 2014 - ACS Publications
Cellular DNA is continuously engaged in a molecular dance with many accessory proteins.
These proteins are responsible for orchestrating the storage, maintenance, and transfer of …

Single-molecule force spectroscopy of protein folding

R Petrosyan, A Narayan, MT Woodside - Journal of Molecular Biology, 2021 - Elsevier
The use of force probes to induce unfolding and refolding of single molecules through the
application of mechanical tension, known as single-molecule force spectroscopy (SMFS) …

The physics of pulling polyproteins: a review of single molecule force spectroscopy using the AFM to study protein unfolding

ML Hughes, L Dougan - Reports on Progress in Physics, 2016 - iopscience.iop.org
One of the most exciting developments in the field of biological physics in recent years is the
ability to manipulate single molecules and probe their properties and function. Since its …

Probing the structural dynamics of proteins and nucleic acids with optical tweezers

DB Ritchie, MT Woodside - Current opinion in structural biology, 2015 - Elsevier
Highlights•Optical tweezers provide a sensitive tool to probe structural dynamics.•Native and
non-native folding can be characterized in detail.•Effects of intermolecular interactions on …

Cas9 interrogates DNA in discrete steps modulated by mismatches and supercoiling

IE Ivanov, AV Wright, JC Cofsky… - Proceedings of the …, 2020 - National Acad Sciences
The CRISPR-Cas9 nuclease has been widely repurposed as a molecular and cell biology
tool for its ability to programmably target and cleave DNA. Cas9 recognizes its target site by …

Watching helical membrane proteins fold reveals a common N-to-C-terminal folding pathway

HK Choi, D Min, H Kang, MJ Shon, SH Rah, HC Kim… - Science, 2019 - science.org
To understand membrane protein biogenesis, we need to explore folding within a bilayer
context. Here, we describe a single-molecule force microscopy technique that monitors the …

Protein misfolding occurs by slow diffusion across multiple barriers in a rough energy landscape

H Yu, DR Dee, X Liu, AM Brigley… - Proceedings of the …, 2015 - National Acad Sciences
The timescale for the microscopic dynamics of proteins during conformational transitions is
set by the intrachain diffusion coefficient, D. Despite the central role of protein misfolding and …