bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 23, 2024
ABSTRACT
Short
linear
peptide
motifs
play
important
roles
in
cell
signaling.
They
can
act
as
modification
sites
for
enzymes
and
recognition
binding
domains.
SH2
domains
bind
specifically
to
tyrosine-phosphorylated
proteins,
with
the
affinity
of
interaction
depending
strongly
on
flanking
sequence.
Quantifying
this
sequence
specificity
is
critical
deciphering
phosphotyrosine-dependent
signaling
networks.
In
recent
years,
protein
display
technologies
deep
sequencing
have
allowed
researchers
profile
domain
across
thousands
candidate
ligands.
Here,
we
present
a
concerted
experimental
computational
strategy
that
improves
predictive
power
profiling.
Through
multi-round
selection
large
randomized
phosphopeptide
libraries,
produce
suitable
data
train
an
additive
free
energy
model
covers
full
theoretical
ligand
space.
Our
models
be
used
predict
network
connectivity
impact
missense
variants
phosphoproteins
binding.
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(2), P. 462 - 462
Published: Jan. 8, 2025
This
study
evaluates
the
performance
of
various
structure
prediction
tools
and
molecular
docking
platforms
for
therapeutic
peptides
targeting
coronary
artery
disease
(CAD).
Structure
tools,
including
AlphaFold
3,
I-TASSER
5.1,
PEP-FOLD
4,
were
employed
to
generate
accurate
peptide
conformations.
These
methods,
ranging
from
deep-learning-based
(AlphaFold)
template-based
(I-TASSER
5.1)
fragment-based
(PEP-FOLD),
selected
their
proven
capabilities
in
predicting
reliable
structures.
Molecular
was
conducted
using
four
(HADDOCK
2.4,
HPEPDOCK
2.0,
ClusPro
HawDock
2.0)
assess
binding
affinities
interactions.
A
100
ns
dynamics
(MD)
simulation
performed
evaluate
stability
peptide–receptor
complexes,
along
with
Mechanics/Poisson–Boltzmann
Surface
Area
(MM/PBSA)
calculations
determine
free
energies.
The
results
demonstrated
that
Apelin,
a
peptide,
exhibited
superior
across
all
platforms,
making
it
promising
candidate
CAD
therapy.
Apelin’s
interactions
key
receptors
involved
cardiovascular
health
notably
stronger
more
stable
compared
other
tested.
findings
underscore
importance
integrating
advanced
computational
design
evaluation,
offering
valuable
insights
future
applications
CAD.
Future
work
should
focus
on
vivo
validation
combination
therapies
fully
explore
clinical
potential
these
peptides.
The
rapid
evolution
of
deep
learning
has
markedly
enhanced
protein–biomolecule
binding
site
prediction,
offering
insights
essential
for
drug
discovery,
mutation
analysis,
and
molecular
biology.
Advancements
in
both
sequence-based
structure-based
methods
demonstrate
their
distinct
strengths
limitations.
Sequence-based
approaches
offer
efficiency
adaptability,
while
techniques
provide
spatial
precision
but
require
high-quality
structural
data.
Emerging
trends
hybrid
models
that
combine
multimodal
data,
such
as
integrating
sequence
information,
along
with
innovations
geometric
learning,
present
promising
directions
improving
prediction
accuracy.
This
perspective
summarizes
challenges
computational
demands
dynamic
modeling
proposes
strategies
future
research.
ultimate
goal
is
the
development
computationally
efficient
flexible
capable
capturing
complexity
real-world
biomolecular
interactions,
thereby
broadening
scope
applicability
predictions
across
a
wide
range
biomedical
contexts.
Quantum Reports,
Journal Year:
2025,
Volume and Issue:
7(1), P. 9 - 9
Published: Feb. 18, 2025
Quantum
core
technologies
(computing,
sensing,
imaging,
communication)
hold
immense
promise
for
revolutionizing
cancer
care.
This
paper
explores
their
distinct
capabilities
in
early-stage
diagnosis,
improved
clinical
workflows,
drug
discovery,
and
personalized
treatment.
By
overcoming
challenges
such
as
infrastructure
ethical
considerations,
these
processes
can
unlock
faster
diagnoses,
optimize
therapies,
enhance
patient
outcomes.
Biochemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 10, 2025
Chemical
peptide
engineering,
enabled
by
residue
insertion,
backbone
cyclization,
and
incorporation
of
an
additional
disulfide
bond,
led
to
a
unique
cyclic
that
efficiently
inhibits
the
invasion
red
blood
cells
malaria
parasites.
The
engineered
exhibits
20-fold
enhanced
affinity
toward
its
receptor
(PfAMA1)
compared
native
ligand
(PfRON2),
as
determined
surface
plasmon
resonance.
In-vitro
parasite
growth
inhibition
assay
revealed
augmented
potency
peptide.
structure
PfAMA1-cyclic
complex,
predicted
deep
learning-based
prediction
tool
ColabFold-AlphaFold2
with
protein-cyclic
complex
offset,
provided
valuable
insights
into
observed
activity
analogs.
Rational
editing
side
chain
described
here
proved
be
effective
strategy
for
designing
peptide-based
inhibitors
interfere
disease-related
protein-protein
interactions.
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 27, 2025
Abstract
Drug
classification
and
target
identification
are
crucial
yet
challenging
steps
in
drug
discovery.
Existing
methods
often
suffer
from
inefficiencies,
overfitting,
limited
scalability.
Traditional
approaches
like
support
vector
machines
XGBoost
struggle
to
handle
large,
complex
pharmaceutical
datasets
effectively.
Deep
learning
models,
while
powerful,
face
challenges
with
interpretability,
computational
complexity,
generalization
unseen
data.
This
study
addresses
these
limitations
by
introducing
a
novel
framework:
optSAE+HSAPSO.
framework
integrates
stacked
autoencoder
(SAE)
for
robust
feature
extraction
hierarchically
self-adaptive
particle
swarm
optimization
(HSAPSO)
algorithm
adaptive
parameter
optimization.
combination
delivers
superior
performance
across
various
metrics.
Experimental
evaluations
on
DrugBank
Swiss-Prot
demonstrate
that
optSAE+HSAPSO
achieves
high
accuracy
of
95.52%.
Notably,
it
exhibits
significantly
reduced
complexity
(0.010
seconds
per
sample)
exceptional
stability
(±0.003).
Compared
state-of-the-art
methods,
the
offers
higher
accuracy,
faster
convergence,
greater
resilience
variability.
Furthermore,
ROC
convergence
analyses
confirm
its
robustness
capability,
maintaining
consistent
both
validation
datasets.
By
leveraging
advanced
techniques,
efficiently
handles
large
sets
diverse
data,
making
scalable
adaptable
solution
real-world
discovery
applications.
However,
method's
is
dependent
quality
training
fine-tuning
may
be
necessary
high-dimensional
Despite
limitations,
demonstrates
transformative
potential,
reducing
overhead
improving
reliability.
work
advances
field
informatics
presenting
reliable
efficient
identification.
These
findings
open
promising
avenues
future
research,
including
extending
other
domains
such
as
disease
diagnostics
or
genetic
data
classification,
ultimately
accelerating
development
process.
Biomolecules,
Journal Year:
2025,
Volume and Issue:
15(4), P. 524 - 524
Published: April 3, 2025
Molecular
modelling
is
a
vital
tool
in
the
discovery
and
characterisation
of
bioactive
peptides,
providing
insights
into
their
structural
properties
interactions
with
biological
targets.
Many
models
predicting
peptide
function
or
structure
rely
on
intrinsic
properties,
including
influence
amino
acid
composition,
sequence,
chain
length,
which
impact
stability,
folding,
aggregation,
target
interaction.
Homology
predicts
structures
based
known
templates.
Peptide-protein
can
be
explored
using
molecular
docking
techniques,
but
there
are
challenges
related
to
inherent
flexibility
addressed
by
more
computationally
intensive
approaches
that
consider
movement
over
time,
called
dynamics
(MD).
Virtual
screening
many
usually
against
single
target,
enables
rapid
identification
potential
peptides
from
large
libraries,
typically
approaches.
The
integration
artificial
intelligence
(AI)
has
transformed
leveraging
amounts
data.
AlphaFold
general
protein
prediction
deep
learning
greatly
improved
predictions
conformations
interactions,
addition
estimates
model
accuracy
at
each
residue
guide
interpretation.
Peptide
being
further
enhanced
Protein
Language
Models
(PLMs),
deep-learning-derived
statistical
learn
computer
representations
useful
identify
fundamental
patterns
proteins.
Recent
methodological
developments
discussed
context
canonical
as
well
those
modifications
cyclisations.
In
designing
therapeutics,
main
outstanding
challenge
for
these
methods
incorporation
diverse
non-canonical
acids