Computer‐aided design of novel anthranilic diamides containing fluorinated alkoxy groups as potential ryanodine receptor insecticides
Pest Management Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 29, 2025
Abstract
BACKGROUND
Increasing
the
diversity
of
lead
compounds
has
been
shown
to
enhance
efficacy
diamide
insecticides.
Fifty
novel
were
precisely
designed
and
synthesized
utilizing
fragment‐based
assembly
virtual
screening
coupling.
RESULTS
The
median
lethal
concentration
(LC
50
)
values
X‐30
X‐40
against
Mythimna
separata
0.09
0.08
mg
L
−1
,
respectively,
which
are
lower
than
that
chlorantraniliprole
(CHL,
0.11
).
Notably,
X‐10,
X‐18,
X‐25,
X‐32
X‐43
had
corresponding
LC
2.0
×
10
−4
5.0
6.0
9.0
7.0
Plutella
xylostella
respectively.
best
compound
X‐10
exhibited
five‐fold
greater
CHL
(1.0
−3
X‐21,
X‐29,
Spodoptera
frugiperda
0.27,
0.26
0.25
slightly
(0.33
In
case
Ostrinia
furnacalis
showed
good
with
comparable
those
(1.38
versus
1.57
Calcium
imaging
experiments
demonstrated
X‐21
acted
on
S.
ryanodine
receptors.
Furthermore,
this
series
safety
toward
nontarget
mammals
compared
CHL.
CONCLUSION
introduction
fluorinated
alkoxy
groups
at
3‐position
pyrazole
ring
leads
insecticidal
activity
improved
insect
selectivity.
©
2025
Society
Chemical
Industry.
Язык: Английский
Molecular Mechanism of λ-Cyhalothrin Detoxification by a Delta-Class Glutathione S-Transferase (PxGSTD3) from Plutella xylostella
Journal of Agricultural and Food Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 4, 2025
The
diamondback
moth
(Plutella
xylostella)
exhibits
significant
resistance
to
commonly
used
insecticides
including
λ-cyhalothrin.
Delta-class
glutathione
S-transferases
(GSTs)
are
crucial
detoxification
enzymes
involved
in
insecticide
and
resistance.
We
demonstrate
that
PxGSTD3
is
associated
with
the
λ-cyhalothrin
contributes
detoxification.
transcription
of
was
rapidly
upregulated
response
exposure,
recombinant
protein
exhibited
metabolic
activity
against
Further
investigation
using
computer-aided
drug
design
revealed
binding
mechanism
toward
results
showed
binds
an
active
pocket
through
noncovalent
interactions
such
as
hydrogen
bonds,
π-π
stacking,
hydrophobic
interactions.
Residues
Arg36,
Tyr115,
Phe119
were
found
have
a
critical
impact
on
metabolism
by
PxGSTD3.
These
findings
provide
valuable
insights
into
role
GST
detoxifying
offer
theoretical
guidance
for
novel
pyrethroid-based
insecticides.
Язык: Английский
Molecular docking and MD simulation studies of 4-thiazol-N-(pyridin-2-yl)pyrimidin-2-amine derivatives as novel inhibitors targeted to CDK2/4/6
Journal of Cancer Research and Clinical Oncology,
Год журнала:
2024,
Номер
150(6)
Опубликована: Июнь 10, 2024
Abstract
Purpose
Nowadays,
cyclin-dependent
kinase
4/6
(CDK4/6)
inhibitors
have
been
approved
for
treating
metastatic
breast
cancer
and
achieved
inspiring
curative
effects.
But
some
discoveries
indicated
that
CDK
are
not
the
requisite
factors
in
cell
types
because
CDK2
partly
compensates
inhibition
of
CDK4/6.
Thus,
it
is
urgent
to
design
CDK2/4/6
significantly
enhancing
their
potency.
This
study
aims
explore
mechanism
binding
kinases
novel
potency
different
kinds
cancers.
Materials
methods
A
series
72
disparately
functionalized
4-substituted
N
-phenylpyrimidin-2-amine
derivatives
exhibiting
potent
inhibitor
activities
against
CDK2,
CDK4
CDK6
were
collected
apply
this
research.
The
total
set
these
was
divided
into
a
training
(54
compounds)
test
(18
compounds).
constructed
through
sketch
molecule
module
SYBYL
6.9
software.
Powell
gradient
algorithm
Tripos
force
field
used
calculate
minimal
structural
energy
minimized
structure
as
initial
conformation
molecular
docking.
By
means
3D-QSAR
models,
partial
least
squares
(PLS)
analysis,
dynamics
(MD)
simulations
free
calculations,
we
can
find
relationship
between
biological
activity.
Results
In
study,
docking,
simulation
comprehensively
analyze
interaction
structure–activity
relationships
new
inhibitors.
We
detailed
statistical
data
reasonably
verify
models
three
receptors
(q
2
=
0.714,
R
pred
0.764,
q
0.815;
0.681,
0.757;
0.674).
MD
decomposition
analysis
validated
reasonability
docking
results
identified
polar
interactions
crucial
influence
bioactivities
studied
receptors,
especially
electrostatic
Lys33/35/43
Asp145/158/163.
nonpolar
with
Ile10/12/19
also
critical
differing
potencies
concluded
following
probably
enhanced
bioactivity
kinases:
(1)
electronegative
groups
at
N1-position
electropositive
moderate-sized
ring
E;
(2)
electrogroups
featured
;
(3)
carbon
atoms
X-position
or
C
replaced
by
benzene
ring;
(4)
an
electrogroup
4
.
Conclusion
Previous
studies,
our
knowledge,
only
utilized
single
approach
did
integrate
method
other
sophisticated
techniques
such
discover
potential
CDK4,
CDK6.
So
applied
intergenerational
technology,
techniques,
MMPBSA19/MMGBSA20-binding
calculations
statistically
correlations
activities.
reasonable
confirmed
excellent
data.
hope
obtained
from
work
will
provide
useful
references
development
Язык: Английский