Topologically knotted deubiquitinases exhibit unprecedented mechanostability to withstand the proteolysis by an AAA+ protease

MK Sriramoju, Y Chen, YTC Lee, STD Hsu - Scientific reports, 2018 - nature.com
More than one thousand knotted protein structures have been identified so far, but the
functional roles of these knots remain elusive. It has been postulated that backbone …

Cell response to extracellular matrix viscous energy dissipation outweighs high-rigidity sensing

C Huerta-López, A Clemente-Manteca… - Science …, 2024 - science.org
The mechanics of the extracellular matrix (ECM) determine cell activity and fate through
mechanoresponsive proteins including Yes-associated protein 1 (YAP). Rigidity and viscous …

Concurrent atomic force spectroscopy

C Pimenta-Lopes, C Suay-Corredera… - Communications …, 2019 - nature.com
Force-spectroscopy by atomic force microscopy (AFM) is the technique of choice to measure
mechanical properties of molecules, cells, tissues and materials at the nano and micro …

Influence of fluorination on single-molecule unfolding and rupture pathways of a mechanostable protein adhesion complex

B Yang, H Liu, Z Liu, R Doenen, MA Nash - Nano letters, 2020 - ACS Publications
We investigated the influence of fluorination on unfolding and unbinding reaction pathways
of a mechanostable protein complex comprising the tandem dyad XModule-Dockerin bound …

The length but not the sequence of peptide linker modules exerts the primary influence on the conformations of protein domains in cellulosome multi-enzyme …

B Różycki, PA Cazade, S O'Mahony… - Physical Chemistry …, 2017 - pubs.rsc.org
Cellulosomes are large multi-protein catalysts produced by various anaerobic
microorganisms to efficiently degrade plant cell-wall polysaccharides down into simple …

The hierarchical emergence of worm-like chain behaviour from globular domain polymer chains

BS Hanson, D Head, L Dougan - Soft Matter, 2019 - pubs.rsc.org
Biological organisms make use of hierarchically organised structures to modulate
mechanical behaviour across multiple lengthscales, allowing microscopic objects to …

Conformational entropy of a single peptide controlled under force governs protease recognition and catalysis

ME Guerin, G Stirnemann… - Proceedings of the …, 2018 - National Acad Sciences
An immense repertoire of protein chemical modifications catalyzed by enzymes is available
as proteomics data. Quantifying the impact of the conformational dynamics of the modified …

A region of UNC-89 (Obscurin) lying between two protein kinase domains is a highly elastic spring required for proper sarcomere organization

H Qadota, JC Moody, L Lesanpezeshki… - Journal of molecular …, 2020 - Elsevier
In Caenorhabditis elegans, unc-89 encodes a set of giant multi-domain proteins (up 8081
residues) localized to the M-lines of muscle sarcomeres and required for normal sarcomere …

Asymmetric conformational transitions in AAA+ biological nanomachines modulate direction-dependent substrate protein unfolding mechanisms

A Javidialesaadi, G Stan - The Journal of Physical Chemistry B, 2017 - ACS Publications
Powerful AAA+ biological nanomachines, such as ClpY, form hexameric ring structures,
which selectively process abnormal proteins targeted for degradation by unfolding and …

Single-molecule analysis of osmolyte-mediated nanomechanical unfolding behavior of a protein domain

M Bajaj, M Muddassir, B Choi, P Singh, JB Park… - International Journal of …, 2023 - Elsevier
The small organic molecules, known as osmolytes being ubiquitously present in different
cell types, affect protein folding, stability and aggregation. However, it is unknown how the …