Disordered peptide-based design of intrinsically disordered polymers for biomedical applications
International Journal of Polymer Analysis and Characterization,
Год журнала:
2025,
Номер
unknown, С. 1 - 49
Опубликована: Фев. 10, 2025
Язык: Английский
Genetically-Encoded Phase Separation Sensors Enable High-Fidelity Live-Cell Probing of Biomolecular Condensates
ACS Sensors,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 23, 2025
Biomolecular
condensates
are
membraneless
compartments
with
enigmatic
roles
across
intracellular
phenomena.
Intrinsically
disordered
proteins
(IDPs)
often
function
as
condensate
scaffolds,
fueled
by
liquid–liquid
phase
separation
(LLPS)
dynamics.
Intracellular
probing
of
relies
on
live-cell
imaging
IDP-scaffolds
tagged
fluorescent
proteins.
Conformational
heterogeneity
in
IDPs,
however,
renders
them
uniquely
susceptible
to
artifacts
from
tagging.
Probing
epidermal
skin,
we
recently
introduced
genetically-encoded
LLPS-sensors
that
circumvent
the
need
for
molecular-level
tagging
skin
IDPs.
Departing
subcellular
tracking
IDP-scaffolds,
report
assembly
and
liquid-like
dynamics
their
condensates.
Here,
demonstrate
biomolecular
approaches
evolution
tunability
assess
impact
early
late
stages
separation.
Benchmarking
against
scaffold-bound
reporters,
discovered
tunable
ultraweak
scaffold–sensor
interactions
enable
sensitive
innocuous
nascent
established
Our
LLPS-sensitive
tools
pave
way
high-fidelity
IDP-governed
biological
systems.
Язык: Английский
Genetically-encoded phase separation sensors for intracellular probing of biomolecular condensates
Опубликована: Авг. 30, 2024
Biomolecular
condensates
are
dynamic
membraneless
compartments
with
enigmatic
roles
across
intracellular
phenomena.
Intrinsically-disordered
proteins
(IDPs)
often
function
as
condensate
scaffolds,
fueled
by
their
liquid-liquid
phase
separation
(LLPS)
dynamics.
Intracellular
probing
of
these
relies
on
live-cell
imaging
IDP-scaffolds
tagged
fluorescent
proteins.
Conformational
heterogeneity
in
IDPs,
however,
renders
them
uniquely
sensitive
to
molecular-level
fusions,
risking
distortion
the
native
biophysical
properties
and
assemblies.
Probing
epidermal
mouse
skin,
we
recently
introduced
genetically
encoded
LLPS-sensors
that
circumvent
need
for
tagging
skin
IDPs.
The
concept
involves
a
shift
focus
from
subcellular
tracking
higher-level
observations
report
assembly
liquid-dynamics
condensates.
Towards
advancing
repertoire
LLPS-sensors,
here
demonstrate
biomolecular
approaches
evolution
tunability
assess
impact
early
late
stages
LLPS
Benchmarking
against
scaffold-bound
reporters,
found
tunable
ultraweak
scaffold-sensor
interactions
key
innocuous
nascent
established
Our
LLPS-sensitive
tools
pave
way
high-fidelity
IDP-governed
biological
systems.
Язык: Английский
Selective separation of dyes and tetracycline hydrochloride in polymer‐nucleotide coacervate droplets
Journal of Applied Polymer Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 30, 2024
Abstract
This
paper
reports
the
formation
of
coacervates
by
electrostatic
interaction
poly
(diallyldimethylammonium
chloride)
(PDDA)
and
adenosine
triphosphate
(ATP)
in
aqueous
solution,
examining
its
conditions,
stability,
efficiency
separation.
The
ideal
concentration
for
creating
coacervate
droplets
pure
water,
HEPES
buffer,
NaCl
solution
was
determined
to
be
20
mM
PDDA
ATP.
Enhancing
stability
achieved
incorporating
phospholipid
vesicles
on
their
surface,
presenting
a
novel
strategy
building
cell
models.
Ostwald
Ripening
employed
comprehend
growth
mechanism
coacervates,
while
Hofmeister
Ion
Series
Schulze‐Hardy's
rule
were
utilized
elucidate
differences
solutions
containing
NaCl,
Na
2
SO
4
,
MgCl
.
These
stable
at
concentrations
below
90
200
30
respectively.
We
also
explored
specific
separation
dyes
tetracycline
hydrochloride
(TC)
coacervates.
Separation
efficiencies
92.98%
methylene
blue
(MB),
94.19%
methyl
orange
(MO),
85.94%
TC,
which
can
attributed
synergistic
effects
hydrophobicity,
forces,
π‐π
interactions.
proposed
have
great
potential
mimicry
water
treatment.
Язык: Английский