Theory and Examples of Catch Bonds
The Journal of Physical Chemistry B,
Journal Year:
2024,
Volume and Issue:
128(17), P. 4097 - 4110
Published: April 18, 2024
We
discuss
slip
bonds,
catch
and
the
tug-of-war
mechanism
using
mathematical
arguments.
The
aim
is
to
explain
theoretical
tool
of
molecular
potential
energy
surfaces
(PESs).
For
this,
we
propose
simple
2-dimensional
surface
models
demonstrate
how
a
molecule
under
an
external
force
behaves.
Examples
are
selectins.
Catch
in
particular,
explained
more
detail,
they
contrasted
bonds.
can
support
special
two-dimensional
PESs
for
E-
L-selectin
which
allow
bond
property.
that
Newton
trajectories
(NT)
powerful
tools
describe
these
phenomena.
NTs
form
background
mechanochemistry.
Language: Английский
To a mechanical model of synthetic catch-bonds
Journal of Mathematical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 8, 2025
Language: Английский
Engineering tunable catch bonds with DNA
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Oct. 12, 2024
Unlike
most
adhesive
bonds,
biological
catch
bonds
strengthen
with
increased
tension.
This
characteristic
is
essential
to
specific
receptor-ligand
interactions,
underpinning
adhesion
dynamics,
cell
communication,
and
mechanosensing.
While
artificial
have
been
conceived,
the
tunability
of
their
behaviour
limited.
Here,
we
present
fish-hook,
a
rationally
designed
DNA
bond
that
can
be
finely
adjusted
wide
range
behaviours.
We
develop
models
design
these
structures
experimentally
validate
different
behaviours
by
single-molecule
force
spectroscopy.
The
fish-hook
architecture
supports
vast
sequence-dependent
space,
making
it
valuable
tool
for
reprogramming
interactions
engineering
force-strengthening
materials.
Biological
counter-intuitively
when
pulled.
authors
tuneable
made
from
study
biomimetic
creation
Language: Английский
Comment to: "Topology of molecular deformations induces triphasic catch bonding in selectin-ligand bonds"
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 23, 2024
We
contradict
diverse
mathematical
claims
of
a
paper
by
Casey
O.
Barkan
and
Robijn
F.
Bruinsma
in
PNAS
2024,
121,
No.
6,
e2315866121,
former
BioRxiv
preprint
from
Sept.12,2023.
It
deals
with
the
physical
mechanisms
protein-ligand
catch
bonding
for
family
selectin
proteins.
Selectins
exhibit
slip,
catch–slip,
slip–catch–slip
bonding.
Language: Английский
Comment to: “Topology of molecular deformations induces triphasic catch bonding in selectin–ligand bonds”
Published: Sept. 30, 2024
We
contradict
diverse
mathematical
claims
of
a
paper
by
Casey
O.
Barkan
and
Robijn
F.
Bruinsma
in
PNAS
2024,
121,
No.
6,
e2315866121,
former
BioRxiv
preprint
from
Sept.12,2023.
It
deals
with
the
physical
mechanisms
protein-ligand
catch
bonding
for
family
selectin
proteins.
Selectins
exhibit
slip,
catch–slip,
slip–catch–slip
bonding.
Language: Английский
Force-dependent Reorganization and Mechanostability of the Izumo1:Juno Complex Involved in Human Fertilization
Sean Boult,
No information about this author
Paulina Pacak,
No information about this author
Byeongseon Yang
No information about this author
et al.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 18, 2024
Abstract
Izumo1:Juno-mediated
adhesion
between
sperm
and
egg
cells
is
essential
for
mammalian
sexual
reproduction.
However,
conventional
biophysical
structural
approaches
have
provided
only
limited
functional
insights.
Using
atomic
force
microscopy-based
single-
molecule
spectroscopy
all-atom
steered
molecular
dynamic
simulations,
we
explored
the
role
of
mechanical
forces
in
regulating
human
Izumo1:Juno
complex.
Our
findings
reveal
a
multi-state
catch
bond
capable
withstanding
up
to
600
pN-
mechanostability
rarely
observed
among
eukaryotic
protein
complexes.
We
further
found
that
this
was
impaired
infertility-associated
mutant,
JunoH177Q.
Detailed
dynamics
simulations
show
how
force-dependent
reorganization
complex
engages
new
binding
conformations
achieve
state
high
mechanostability.
Overall,
study
significantly
enhances
our
understanding
underpinnings
regulate
fertilization.
Language: Английский
Comment on ”Exploring potential energy surfaces to reach saddle points above convex regions” [J. Chem. Phys. 160, 232501 (2024)] by M.Gunde et al.
Published: Dec. 12, 2024
We
comment
on
the
work
convex
regions
of
potential
energy
surface
(PES)
a
molecule
by
M.
Gunde;
A.
Jay;
Poberžnik;
N.
Salles;
Richard;
G.
Landa;
Mousseau;
L.
Martin-Samos
and
Hemeryck[1].
In
contrast
to
activation-relaxation
technique
nouveau
(ARTn),
in
present
we
apply
theory
Newton
trajectories
(NTs)
2D
PES.
NTs
have
no
problem
traversing
or
concave
The
ARTn
is
compared
with
NTs.
Language: Английский
Should Artificial Intelligence Play a Durable Role in Biomedical Research and Practice?
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(24), P. 13371 - 13371
Published: Dec. 13, 2024
During
the
last
decade,
artificial
intelligence
(AI)
was
applied
to
nearly
all
domains
of
human
activity,
including
scientific
research.
It
is
thus
warranted
ask
whether
AI
thinking
should
be
durably
involved
in
biomedical
This
problem
addressed
by
examining
three
complementary
questions
(i)
What
are
major
barriers
currently
met
investigators?
suggested
that
during
2
decades
there
a
shift
towards
growing
need
elucidate
complex
systems,
and
this
not
sufficiently
fulfilled
previously
successful
methods
such
as
theoretical
modeling
or
computer
simulation
(ii)
potential
meet
aforementioned
need?
it
recent
well-suited
perform
classification
prediction
tasks
on
multivariate
possibly
help
data
interpretation,
provided
their
efficiency
properly
validated.
(iii)
Recent
representative
results
obtained
with
machine
learning
suggest
may
comparable
displayed
operators.
concluded
play
an
important
role
practice.
Also,
already
other
physics,
combining
conventional
might
generate
further
progress
new
applications,
involving
heuristic
interpretation.
Language: Английский