Briefings in Bioinformatics,
Год журнала:
2024,
Номер
25(5)
Опубликована: Июль 9, 2024
PROteolysis
TArgeting
Chimeras
(PROTACs)
has
recently
emerged
as
a
promising
technology.
However,
the
design
of
rational
PROTACs,
especially
linker
component,
remains
challenging
due
to
absence
structure-activity
relationships
and
experimental
data.
Leveraging
structural
characteristics
fragment-based
drug
(FBDD)
provides
feasible
approach
for
PROTAC
research.
Concurrently,
artificial
intelligence-generated
content
attracted
considerable
attention,
with
diffusion
models
Transformers
emerging
indispensable
tools
in
this
field.
In
response,
we
present
new
model,
DiffPROTACs,
harnessing
power
learn
generate
linkers
based
on
given
ligands.
To
introduce
essential
inductive
biases
required
molecular
generation,
propose
O(3)
equivariant
graph
Transformer
module,
which
augments
neural
networks
(GNNs),
using
update
nodes
GNNs
coordinates
atoms.
DiffPROTACs
effectively
competes
existing
achieves
comparable
performance
two
traditional
FBDD
datasets,
ZINC
GEOM.
differentiate
between
PROTACs
small
molecules,
fine-tuned
model
our
self-built
dataset,
achieving
93.86%
validity
rate
generated
PROTACs.
Additionally,
provide
database
further
research,
can
be
accessed
at
https://bailab.siais.shanghaitech.edu.cn/service/DiffPROTACs-generated.tgz.
The
corresponding
code
is
available
https://github.com/Fenglei104/DiffPROTACs
server
https://bailab.siais.shanghaitech.edu.cn/services/diffprotacs.
Chemical Society Reviews,
Год журнала:
2022,
Номер
51(13), С. 5498 - 5517
Опубликована: Янв. 1, 2022
By
orchestrating
interactions
to
an
E3
ubiquitin
ligase,
molecular
glue
degraders
have
incredible
therapeutic
potential
against
otherwise
“undruggable”
proteins.
We
discuss
how
their
discovery
is
evolving
from
serendipity
intentional
strategies.
Journal of Medicinal Chemistry,
Год журнала:
2023,
Номер
66(4), С. 2308 - 2329
Опубликована: Фев. 14, 2023
Proteolysis-targeting
chimeras
(PROTACs)
have
shown
great
therapeutic
potential
by
degrading
various
disease-causing
proteins,
particularly
those
related
to
tumors.
Therefore,
the
introduction
of
PROTACs
has
ushered
in
a
new
chapter
antitumor
drug
development,
marked
significant
advances
over
recent
years.
Herein,
we
describe
developments
PROTAC
technology,
focusing
on
design
strategy,
development
workflow,
and
future
outlooks.
We
also
discuss
opportunities
challenges
for
research.
Acta Pharmaceutica Sinica B,
Год журнала:
2024,
Номер
14(10), С. 4266 - 4295
Опубликована: Апрель 11, 2024
Proteolysis
targeting
chimera
(PROTAC)
technology
represents
a
groundbreaking
development
in
drug
discovery,
leveraging
the
ubiquitin‒proteasome
system
to
specifically
degrade
proteins
responsible
for
disease.
PROTAC
is
characterized
by
its
unique
heterobifunctional
structure,
which
comprises
two
functional
domains
connected
linker.
The
linker
plays
pivotal
role
determining
PROTAC's
biodegradative
efficacy.
Advanced
and
rationally
designed
linkers
are
under
development.
Nonetheless,
correlation
between
characteristics
efficacy
remains
under-investigated.
Consequently,
this
study
will
present
multidisciplinary
analysis
of
their
impact
on
efficacy,
thereby
guiding
rational
design
linkers.
We
primarily
discuss
structural
types
linkers,
optimization
strategies
used
design.
Furthermore,
we
how
factors
like
length,
group
type,
flexibility,
linkage
site
affect
biodegradation
efficiency
PROTACs.
believe
that
work
contribute
towards
advancement
research
area.
Nature Communications,
Год журнала:
2022,
Номер
13(1)
Опубликована: Окт. 6, 2022
Targeted
protein
degradation
(TPD)
is
a
promising
approach
in
drug
discovery
for
degrading
proteins
implicated
diseases.
A
key
step
this
process
the
formation
of
ternary
complex
where
heterobifunctional
molecule
induces
proximity
an
E3
ligase
to
interest
(POI),
thus
facilitating
ubiquitin
transfer
POI.
In
work,
we
characterize
3
steps
TPD
process.
(1)
We
simulate
SMARCA2
bromodomain
and
VHL
by
combining
hydrogen-deuterium
exchange
mass
spectrometry
with
weighted
ensemble
molecular
dynamics
(MD).
(2)
conformational
heterogeneity
using
Hamiltonian
replica
simulations
small-angle
X-ray
scattering.
(3)
assess
ubiquitination
POI
context
full
Cullin-RING
Ligase,
confirming
experimental
ubiquitinomics
results.
Differences
efficiency
can
be
explained
lysine
residues
on
relative
ubiquitin.
Degraders
have
illustrated
that
compound-induced
proximity
to
E3
ubiquitin
ligases
can
prompt
the
ubiquitination
and
degradation
of
disease-relevant
proteins.
Hence,
this
pharmacology
is
becoming
a
promising
alternative
complement
available
therapeutic
interventions
(e.
g.,
inhibitors).
rely
on
protein
binding
instead
inhibition
and,
hence,
they
hold
promise
broaden
druggable
proteome.
Biophysical
structural
biology
approaches
been
cornerstone
understanding
rationalizing
degrader-induced
ternary
complex
formation.
Computational
models
now
started
harness
experimental
data
from
these
with
aim
identify
rationally
help
design
new
degraders.
This
review
outlines
current
computational
strategies
used
study
formation
highlights
importance
effective
crosstalk
between
in
advancement
targeted
(TPD)
field.
As
our
molecular
features
govern
drug-induced
interactions
grows,
faster
optimizations
superior
innovations
for
TPD
other
proximity-inducing
modalities
are
sure
follow.
Journal of Chemical Information and Modeling,
Год журнала:
2023,
Номер
63(17), С. 5408 - 5432
Опубликована: Авг. 21, 2023
The
therapeutic
approach
of
targeted
protein
degradation
(TPD)
is
gaining
momentum
due
to
its
potentially
superior
effects
compared
with
inhibition.
Recent
advancements
in
the
biotech
and
pharmaceutical
sectors
have
led
development
compounds
that
are
currently
human
trials,
some
showing
promising
clinical
results.
However,
use
computational
tools
TPD
still
limited,
as
it
has
distinct
characteristics
traditional
drug
design
methods.
involves
creating
a
ternary
structure
(protein-degrader-ligase)
responsible
for
biological
function,
such
ubiquitination
subsequent
proteasomal
degradation,
which
depends
on
spatial
orientation
interest
(POI)
relative
E2-loaded
ubiquitin.
Modeling
this
necessitates
unique
blend
initially
developed
small
molecules
(e.g.,
docking)
biologics
protein-protein
interaction
modeling).
Additionally,
degrader
molecules,
particularly
heterobifunctional
degraders,
generally
larger
than
conventional
molecule
drugs,
leading
challenges
determining
drug-like
properties
like
solubility
permeability.
Furthermore,
catalytic
nature
makes
occupancy-based
modeling
insufficient.
consists
multiple
interconnected
yet
steps,
POI
binding,
E3
ligase
interactions,
ubiquitination,
along
properties.
A
comprehensive
set
needed
address
dynamic
induced
proximity
complex
implications
ubiquitination.
In
Perspective,
we
discuss
current
state
TPD.
We
start
by
describing
series
steps
involved
process
experimental
methods
used
characterize
them.
Then,
delve
into
detailed
analysis
employed
also
present
an
integrative
proven
successful
impact
project
decisions.
Finally,
examine
future
prospects
areas
greatest
potential
impact.
Journal of Medicinal Chemistry,
Год журнала:
2023,
Номер
66(6), С. 4197 - 4214
Опубликована: Март 10, 2023
The
linker
moiety
of
a
proteolysis-targeting
chimera
(PROTAC)
molecule
plays
critical
role
in
modulating
the
degradation
activity,
target
selectivity,
and
physico-chemical
properties.
However,
basics
underlying
mechanisms
chemical
modifications
structure
causing
dramatic
changes
PROTAC
activity
warrant
further
investigation.
Herein,
we
report
design
characterization
highly
potent
selective
SOS1
ZZ151.
After
systematically
modifying
length
composition,
observed
that
subtle
modification
just
one
atom
ZZ151
resulted
remarkable
formation
ternary
complex
thus
dramatically
affected
activities.
quickly,
specifically,
effectively
induced
degradation;
displayed
antiproliferation
activities
against
broad
panel
KRAS
mutant-driven
cancer
cells;
showed
superior
anticancer
KRASG12D-
G12V-mutant
xenografts
mice.
is
promising
lead
for
developing
new
chemotherapies
targeting
mutants.
ACS Medicinal Chemistry Letters,
Год журнала:
2025,
Номер
16(3), С. 420 - 427
Опубликована: Фев. 6, 2025
Targeted
protein
degradation
has
become
the
most
pursued
alternative
modality
to
small-molecule
inhibition
over
past
decade.
The
traditional
strategy
of
blocking
activity
by
tightly
binding
a
functional
substrate
pocket
progressed
toward
proteolysis-targeting
chimeras
(PROTACs),
bivalent
molecules
that
induce
knockdown
targeted
proteins.
Herein,
combined
protocol
is
described
for
modeling
ternary
complexes
via
well-established
approaches.
We
performed
local
protein–protein
docking
using
Rosetta
and
sampled
conformational
landscape
specific
PROTAC
molecule
was
compatible
with
generated
poses,
followed
double
independent
single-linkage/nearest-neighbor
clustering
representative
selection.
Subsequently,
we
fragment
molecular
orbital
density
tight-binding
methods
facilitate
fast
quantum
mechanics-based
energy
calculations
clustered
complexes.
Finally,
computed
values
were
utilized
score
select
best
achieving
good
agreement
available
crystallographic
data.
Pharmaceuticals,
Год журнала:
2023,
Номер
16(12), С. 1649 - 1649
Опубликована: Ноя. 24, 2023
PROteolysis
TArgeting
Chimera
(PROTAC)
is
an
emerging
technology
in
chemical
biology
and
drug
discovery.
This
technique
facilitates
the
complete
removal
of
target
proteins
that
are
"undruggable"
or
challenging
to
through
molecules
via
Ubiquitin-Proteasome
System
(UPS).
PROTACs
have
been
widely
explored
outperformed
not
only
cancer
but
also
other
diseases.
During
past
few
decades,
several
academic
institutes
pharma
companies
poured
more
efforts
into
PROTAC-related
technologies,
setting
stage
for
major
degrader
trial
readouts
clinical
phases.
Despite
their
promising
results,
formation
robust
ternary
orientation,
off-target
activity,
poor
permeability,
binding
affinity
some
limitations
hinder
development.
Recent
advancements
computational
technologies
facilitated
progress
development
PROTACs.
Researchers
able
utilize
these
explore
a
wider
range
E3
ligases
optimize
linkers,
thereby
gaining
better
understanding
effectiveness
safety
settings.
In
this
review,
we
briefly
strategies
reported
date
PROTAC
components
discuss
key
challenges
opportunities
further
research
area.