ChemMedChem,
Journal Year:
2024,
Volume and Issue:
19(5)
Published: Feb. 2, 2024
Abstract
It
is
of
great
importance
to
pinpoint
specific
residues
or
sites
a
protein
in
biological
contexts
enable
desired
mechanism
action
for
small
molecules
precisely
control
function.
In
this
regard,
acidic
including
aspartic
acid
(Asp)
and
glutamic
(Glu)
hold
potential
due
their
prevalence
unique
To
unlock
the
largely
untapped
potential,
efforts
have
been
made
recently
by
synthetic
chemists,
chemical
biologists
pharmacologists.
Herein,
we
would
like
highlight
remarkable
progress
particularly
introduce
electrophiles
that
exhibit
reactivity
carboxylic
acids,
light‐induced
reactivities
acids
genetically
encoded
noncanonical
amino
allow
manipulations
at
residues.
We
also
comment
on
certain
unresolved
challenges,
hoping
draw
more
attention
rapidly
developing
area.
Journal of Medicinal Chemistry,
Journal Year:
2024,
Volume and Issue:
67(10), P. 7668 - 7758
Published: May 7, 2024
Covalent
inhibitors
and
other
types
of
covalent
modalities
have
seen
a
revival
in
the
past
two
decades,
with
variety
new
targeted
drugs
having
been
approved
recent
years.
A
key
feature
such
molecules
is
an
intrinsically
reactive
group,
typically
weak
electrophile,
which
enables
irreversible
or
reversible
formation
bond
specific
amino
acid
target
protein.
This
often
called
"warhead",
critical
determinant
ligand's
activity,
selectivity,
general
biological
properties.
In
2019,
we
summarized
emerging
re-emerging
warhead
chemistries
to
cysteine
acids
(Gehringer,
M.;
Laufer,
S.
A.
J.
Med.
Chem.
62,
5673−5724;
DOI:
10.1021/acs.jmedchem.8b01153).
Since
then,
field
has
rapidly
evolved.
Here
discuss
progress
on
warheads
made
since
our
last
Perspective
their
application
medicinal
chemistry
chemical
biology.
Nature Chemical Biology,
Journal Year:
2024,
Volume and Issue:
20(9), P. 1114 - 1122
Published: March 5, 2024
K-Ras
is
the
most
commonly
mutated
oncogene
in
human
cancer.
The
recently
approved
non-small
cell
lung
cancer
drugs
sotorasib
and
adagrasib
covalently
capture
an
acquired
cysteine
K-Ras-G12C
mutation
lock
it
a
signaling-incompetent
state.
However,
covalent
inhibition
of
G12D,
frequent
particularly
prevalent
pancreatic
ductal
adenocarcinoma,
has
remained
elusive
due
to
lack
aspartate-targeting
chemistry.
Here
we
present
set
malolactone-based
electrophiles
that
exploit
ring
strain
crosslink
K-Ras-G12D
at
mutant
aspartate
form
stable
complexes.
Structural
insights
from
X-ray
crystallography
exploitation
stereoelectronic
requirements
for
attack
electrophile
allowed
development
substituted
malolactone
resisted
by
aqueous
buffer
but
rapidly
crosslinked
with
aspartate-12
both
GDP
GTP
GTP-state
targeting
effective
suppression
downstream
signaling,
selective
K-Ras-G12D-driven
proliferation
vitro
xenograft
growth
mice.
MedComm – Oncology,
Journal Year:
2023,
Volume and Issue:
2(4)
Published: Oct. 31, 2023
Abstract
Covalent
inhibitors
have
been
a
rapidly
growing
field
in
drug
discovery
due
to
their
therapeutic
potential
and
unique
advantages
cancer
therapy.
As
opposed
noncovalent
inhibitory
drugs,
covalent
reversibly
or
irreversibly
modify
proximal
nucleophilic
amino
acid
residues
on
proteins,
aiming
selectively
recognize
bind
protein
targets
addressing
some
of
the
challenges
faced
by
drugs.
Most
successful
targeted
depend
primarily
binding‐site
cysteine
residues,
but
this
has
limitations
for
certain
that
lack
targetable
residues.
Recently,
rational
design
probes
targeting
other
such
as
lysine,
tyrosine,
serine,
turned
out
be
another
promising
strategy
Thus,
development
novel
strategies
extend
scope
binding
improve
properties
is
required.
This
review
gives
summary
noncysteine
from
different
aspects,
including
target
identification,
structure–activity
relationships,
strategies,
properties,
hope
providing
scientific
reference
future
means
expanding
research
Journal of Medicinal Chemistry,
Journal Year:
2024,
Volume and Issue:
67(8), P. 6044 - 6051
Published: April 15, 2024
The
GTPase
KRAS
acts
as
a
switch
in
cellular
signaling,
transitioning
between
inactive
GDP-bound
and
active
GTP-bound
states.
In
about
20%
of
human
cancers,
oncogenic
RAS
mutations
disrupt
this
balance,
favoring
the
form
promoting
proliferative
thus
rendering
an
appealing
target
for
precision
medicine
oncology.
2013,
Shokat
co-workers
achieved
groundbreaking
feat
by
covalently
targeting
previously
undiscovered
allosteric
pocket
(switch
II
(SWIIP))
Chemical Reviews,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 7, 2025
The
term
"undruggable"
refers
to
proteins
or
other
biological
targets
that
have
been
historically
challenging
target
with
conventional
drugs
therapeutic
strategies
because
of
their
structural,
functional,
dynamic
properties.
Drugging
such
undruggable
is
essential
develop
new
therapies
for
diseases
where
current
treatment
options
are
limited
nonexistent.
Thus,
investigating
methods
achieve
drugging
an
important
challenge
in
medicinal
chemistry.
Among
the
numerous
methodologies
drug
discovery,
covalent
modification
has
emerged
as
a
transformative
strategy.
attachment
diverse
functional
molecules
provides
powerful
platform
creating
highly
potent
and
chemical
tools
well
ability
provide
valuable
information
on
structures
dynamics
targets.
In
this
review,
we
summarize
recent
examples
biomolecules
development
therapeutics
overcome
discovery
challenges
highlight
how
contribute
toward
particular,
focus
use
chemistry
drugs,
identification,
screening,
artificial
modulation
post-translational
modifications,
cancer
specific
chemotherapies,
nucleic
acid-based
therapeutics.
Expert Opinion on Therapeutic Patents,
Journal Year:
2024,
Volume and Issue:
34(8), P. 701 - 721
Published: June 17, 2024
KRAS
is
a
critical
oncogenic
protein
intricately
involved
in
tumor
progression,
and
the
difficulty
targeting
has
led
it
to
be
classified
as
an
'undruggable
target.'
Among
various
mutations,
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(30), P. 20823 - 20836
Published: July 17, 2024
The
evolving
use
of
covalent
ligands
as
chemical
probes
and
therapeutic
agents
could
greatly
benefit
from
an
expanded
array
cysteine-reactive
electrophiles
for
efficient
versatile
proteome
profiling.
Herein,
to
expand
the
current
repertoire
electrophiles,
we
developed
a
new
class
strain-enabled
based
on
cyclopropanes.
Proteome
profiling
has
unveiled
that
C163
lactate
dehydrogenase
A
(LDHA)
C88
adhesion
regulating
molecule
1
(ADRM1)
are
ligandable
residues
modulate
protein
functions.
Moreover,
fragment-based
ligand
discovery
(FBLD)
revealed
one
fragment
(
ACS Central Science,
Journal Year:
2024,
Volume and Issue:
10(9), P. 1742 - 1754
Published: Aug. 21, 2024
Efficient
functionalization
of
peptides
and
proteins
has
widespread
applications
in
chemical
biology
drug
discovery.
However,
the
chemoselective
site-selective
modification
remains
a
daunting
task.
Herein,
highly
efficient
chemo-,
regio-,
stereoselective
hydrosulfuration
ynamide
was
identified
as
an
method
for
precise
by
uniquely
targeting
thiol
group
cysteine
(Cys)
residues.
This
novel
could
be
facilely
operated
aqueous
buffer
fully
compatible
with
wide
range
proteins,
including
small
model
large
full-length
antibodies,
without
compromising
their
integrity
functions.
Importantly,
this
reaction
provides
Z-isomer
corresponding
conjugates
exclusively
superior
stability,
offering
approach
to
peptide
protein
therapeutics.
The
potential
application
further
exemplified
Cys-bioconjugation
variety
ynamide-bearing
functional
molecules
such
molecule
drugs,
fluorescent/affinity
tags,
PEG
polymers.
It
also
proved
redox
proteomic
analysis
through
Cys-alkenylation.
Overall,
study
bioorthogonal
tool
Cys-specific
functionalization,
which
will
find
broad
synthesis
peptide/protein
conjugates.