Advances in quantum mechanochemistry: electronic structure methods and force analysis

T Stauch, A Dreuw - Chemical Reviews, 2016 - ACS Publications
In quantum mechanochemistry, quantum chemical methods are used to describe molecules
under the influence of an external force. The calculation of geometries, energies, transition …

On folding of entangled proteins: knots, lassos, links and θ-curves

JI Sulkowska - Current opinion in structural biology, 2020 - Elsevier
Around 6% of protein structures deposited in the PDB are entangled, forming knots,
slipknots, lassos, links, and θ-curves. In each of these cases, the protein backbone weaves …

A Stevedore's protein knot

D Bölinger, JI Sułkowska, HP Hsu… - PLoS computational …, 2010 - journals.plos.org
Protein knots, mostly regarded as intriguing oddities, are gradually being recognized as
significant structural motifs. Seven distinctly knotted folds have already been identified. It is …

Dodging the crisis of folding proteins with knots

JI Sulkowska, P Sulkowski, J Onuchic - Biophysical Journal, 2009 - cell.com
We prove that proteins with nontrivial topology, containing knots and slipknots, have the
ability to fold to their native states without any additional external forces invoked. Our studies …

Stabilizing effect of knots on proteins

JI Sułkowska, P Sułkowski… - Proceedings of the …, 2008 - National Acad Sciences
Molecular dynamics studies within a coarse-grained, structure-based model were used on
two similar proteins belonging to the transcarbamylase family to probe the effects of the knot …

Slipknotting upon native-like loop formation in a trefoil knot protein

JK Noel, JI Sułkowska… - Proceedings of the …, 2010 - National Acad Sciences
Protein knots and slipknots, mostly regarded as intriguing oddities, are gradually being
recognized as significant structural motifs. Recent experimental results show that knotting …

Structures and folding pathways of topologically knotted proteins

P Virnau, A Mallam, S Jackson - Journal of Physics: Condensed …, 2010 - iopscience.iop.org
In the last decade, a new class of proteins has emerged that contain a topological knot in
their backbone. Although these structures are rare, they nevertheless challenge our …

Topological Jamming of Spontaneously Knotted Polyelectrolyte<? format?> Chains Driven Through a Nanopore

A Rosa, M Di Ventra, C Micheletti - Physical review letters, 2012 - APS
The advent of solid state nanodevices allows for interrogating the physicochemical
properties of a polyelectrolyte chain by electrophoretically driving it through a nanopore …

Mechanical strength of 17 134 model proteins and cysteine slipknots

M Sikora, JI Sułkowska, M Cieplak - PLoS computational biology, 2009 - journals.plos.org
A new theoretical survey of proteins' resistance to constant speed stretching is performed for
a set of 17 134 proteins as described by a structure-based model. The proteins selected …

Topological and physical links in soft matter systems

E Orlandini, C Micheletti - Journal of Physics: Condensed Matter, 2021 - iopscience.iop.org
Linking, or multicomponent topological entanglement, is ubiquitous in soft matter systems,
from mixtures of polymers and DNA filaments packed in vivo to interlocked line defects in …